How to resolve the unauthorized error 401 during Office 365 migration Internal autodiscover works fine again, but the external autodiscover shows the following error (MS connectivity analyzer):Attempting to send an Autodiscover POST request to potential Autodiscover URLs.Autodiscover settings weren't obtained when the Autodiscover POST request was sent.An HTTP 401 Unauthorized response was received from the remote Unknown server. Could not find or sign in with user kbgs.net\extest_f22daf6127864. Did you ever figure this out? I can open them manually (Autodiscover, EWS, OAB). The provider didn't configure the DNS-entries as I told them to and are doing some kind of weird re-direct that doesn't work with Outlook Anywhere and ActiveSync. Attachments: Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total. Getting 401 unauthorized error on calling Autodiscover service [2016-04-06 02:01:13Z] Autodiscover request: [2016-04-06 02:01:13Z] Autodiscover response: Autodiscover settings weren't obtained when the Autodiscover POST request was sent. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" + CategoryInfo : ObjectNotFound: (:) [Test-OwaConnectivity], CasHealthCouldNedInfoException If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN). However when doing the test-outlookwebsirvices test I still get an error for autodiscover 401 unathorized. It just screams authentication settings into my face but I don't see what I can and can't change to make this work.Does anyone here maybe have an idea?Cheers!MaxPS, this is the full MS protocol:Attempting to send an Autodiscover POST request to potential Autodiscover URLs.Autodiscover settings weren't obtained when the Autodiscover POST request was sent.The Microsoft Connectivity Analyzer is attempting to retrieve an XML Autodiscover response from URL https://autodiscover.domain.tld:443/Autodiscover/Autodiscover.xml for user [email protected] Microsoft Connectivity Analyzer failed to obtain an Autodiscover XML response.An HTTP 401 Unauthorized response was received from the remote Unknown server. I finally might have the budget for next year to refresh my servers.I'm undecided if I should stick with the traditional HPE 2062 MSA array (Dual Controller) with 15k SAS drives or move to a Nimble HF appliance. How to Import PST Mailboxes to Exchange Server? Run the autodiscover test from Outlook and post the output. Issue : I have two mail IDs. Result : Failure I've published HTTP and HTTPS and can reach OWA without any problems, but when I test ActiveSync with testconnectivity.microsoft.com I get the following error: Attempting to send an Autodiscover POST request to potential Autodiscover URLs. ScenarioDescription : Autodiscover: Outlook Provider If you haven't already enrolle Upvote if you also have this question or find it interesting. extest_f22daf6127864 as this seems not to have accecc. Flashback: Back on November 3, 1937, Howard Aiken writes to J.W. at 1. Default Server: ------------ Address: X.X.X.X You can use Microsoft ADFS and WAP it is fully supported, the better option is to get a web application firewall like F5 or FortiWeb. 1.below. Run Get-MsolUser -ReturnDeletedUsers -SearchString useralias | FL to get the user ObjectID. Expect: 100-continue F5 would be a bit too big just to publish Exchange, I'm looking into FortIWeb since we already have a FortiGate. I'll report back as soon as I know more! Celebrating 20 years of providing Exchange peer support! Users are synced up with password hash synchronization. After reading serveral whitepapers and blogs this should be the correct configuration: This is the result of the Microsoft Remote Connectivity Tool: The Microsoft Connectivity Analyzer is attempting to retrieve an XML Autodiscover response from URL https://autodiscover.domain.de:443/Autodiscover/Autodiscover.xml for user [email protected]. If you are facing this kind of error, then there may be multiple reasons behind this issue The user ID is different than the UPN (User Principal Name). Bryce (IBM) about building a "Giant Brain," which they eventually did (Read more HERE.) This is usually the result of an incorrect username or password. If you are facing this kind of error, then there may be multiple reasons behind this issue. This is usually the result of an incorrect username or password. Skipped 0 I could try and connect it to our SIEM. Unauthorized Error 401 during Microsoft 365 Migration, Get Quick Solution Detailed Information on Sensitivity Labels in Microsoft 365, Methods for Export Office 365 Contacts to VCF. Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. The InternalURL and ExternalURL properties have never been anything more than a comment so they removed the ability to set them in Exchange 2013. Host: autodiscover.companyLongName.com.au In the past, when trying to reverse proxy Exchange through Nginx, I ran into various issues that were eventually resolved, but I could never get Outlook Anywhere to work at all through Nginx. --> The remote server returned an error: (401) Unauthorized. priority = 0 Upvote if you found this answer helpful or interesting. If the Office 365 account which you are using is different from the UPN from the Active Directory, then you will have to face the error. Additional Details An HTTP 401 Unauthorized response was received from the remote Unknown server. Is their anything that I can look at any suggestions. In order to keep pace with new hires, the IT manager is currently stuck doing the following: When you are using this KernelApps tool, you will not have to face errors like 401 Unauthorized Access. Troubleshooting Steps If the response is helpful, please click "Accept Answer" and upvote it.Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread. Microsoft.Exchange.Management.SystemConfigurationTasks.ServiceValidatorBase.InternalInvoke() Hey SW community,I know that there have been a few topics discussing this issue already, but none of the solutions fixed it so far for me. Search the forums for similar questions You can find more information. Verify that you have not received an error from this URL with the current email address before. 2. Didn't find what you were looking for? If you have an internally connected Outlook client, please try to hold down "Ctrl" and right-click the Outlook icon, select "Test Email AutoConfiguration" to check the status of your Autodiscover service. However, there are multiple precautions which you should take care while migrating the data; otherwise, there can be some unwanted errors. The following steps will go through each of the most common causes of this error. I've tried that and still doesn't work same issue. I found the source of the problem. Demystifying Hybrid Free/Busy: Finding errors and troubleshooting As far as I know, I shouldn't expose my exchange server like that, what would you guys recommend as a reverse proxy? If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN). sign up to reply to this topic. We're using Exchange Version 15.1 (Build 2044.4), should be the newest CU, iirc. ~* ^/ecp " since I didn't have it that way before. This is usually the result of an incorrect username or password. Here is the brief procedure for Office 365 data migration . and when the first one invokes the above code, it is successful, same code is being triggered by second IDs (Just passing the second mail ID) getting 401 unauthorized error. We already have the "ExcludeExplicitO365Endpoint" key in place aswell as the "ZeroConfigExchange" key.I'm also reading through the link posted in your topic and see if i can find something. In theory, the Autodiscover process should fail. RunspaceId : be76ebc0-f8ca-486a-bb28-743b889d9431 But if you still are facing the same error due to UPN settings and there is no manual method to solve the problem, then use a professional tool which can bypass all the technicalities and perform the migration on your terms. This Free/Busy test is useful for checking DNS records, Autodiscover and EWS connectivity issues, pre-authentication for Autodiscover or EWS requests. I have disabled annonymous and users are able to log into their Maybe that will fix your issues. When you look at the security log in the server what's the error your receiving for those bad attempts? We were finding that user name and password prompts were in the background waiting for user input but they were hidden and not being seen thus hanging the whole process. Click on Menu icon and then follow Azure Active Directory>Properties. Silently connect to 2FA enabled Exchange Server by remote Powershell, Exchange Organisation Relationship with 2 Partners, Error 550 5.1.1 Very strange error Exchange 2019 CU6 Need help, Outlook app for iPad stops syncing with Exchange. Authorization: Negotiate TlRMTVNTUAADAAAAGAAYAJoAAABGAUYBsgAAAAAAAABYAAAAOgA6AFgAAAAIAAgAkgAAABAA However when doing the test-outlookwebsirvices test I still get an error for autodiscover 401 unathorized. Microsoft.Exchange.Management.SystemConfigurationTasks.ServiceValidatorBase.InternalInvoke() Also deleted and recreated my autodiscover vd. Have you tried testing the autodiscover from external network without the proxy? Mailbox logon returned EcLoginFailure -2147221231. at The answer to this problem is - impersonation. outlook client. Your email address will not be published. quick update. weight = 0 Can I just disable it or does Outlook require RPC to function in some form?btw, what I've done: 1. ---> System.Net.WebException: The remote server returned an error: (401) Unauthorized. in as a Domain Administrator, and then run Scripts\new-TestCasConnectivityUser.ps1 to verify that the user exists on https://autodscover.company.com.au, now internal clients can't access their mailboxes. You would check with Get-WebServicesVirtualDirectory |FL cmdlet if NTLM is present in the Authentication Methods. Factors to be Considered Before Choosing an Office 365 Migration Tool, Office 365 Migration Stuck on Syncing/Completing, Avoid these Most Common Office 365 Deployment Mistakes, Office 365 Shared Mailbox not Showing in Outlook, Common Office 365 Problems and their Solutions. Troubleshooting server connection If you configure the EWS connection to a source Exchange Server, the first action (test) performed by the program is always Check connection to Exchange Server, as shown in Fig. Kernel Office 365 Migration is the best-suited migration software which can access the email ID along with the UPN ID and complete the migration. If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN)., Please check from the result of Test Email AutoConfiguration, whether Outlook tries to lookup office365. Exchange Autodiscover with 401 Authentication - Discussions We have configured a Hybrid Exchange 2013 CU11 and Office 365 connection. Autodiscover 401 Issues : r/exchangeserver - reddit at System.Net.HttpWebRequest.GetResponse() MigrationWiz Errors - 401 Unauthorized Error Suite If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN).All other test steps succeed:- Attempting to resolve the host name- Testing TCP port 443 on host - Testing the SSL certificate- Checking the IIS configurationI tried to play with the authentication settings of the autodiscover virtual directory but that broke the internal outlook connection (constant password prompts). Many times, the user creates an Office 365 account and try to start the migration instantly. this is a screenshot take by Fiddler for a real life example with office 365; Client will get back a response with two HTTPS URLs in it . I tried using the autodiscover redirect but received the same response. Haven't found that in my research. 401 when trying to read autodiscover from Office 365 Seems to be a weird issue with the Connectivity Analyzer. We tried also to setHKCU\SOFTWARE\Microsoft\Office\16.0\Common\Identity\EnableADAL (REG_DWORD 0), but it didn't work. The error is following: The request failed. 3.Please run the following command to check the authentication of the Autodiscover, and check the authentication methods in IIS. The spelling of the username and password of the Office 365 is not correct. [SOLVED] Exchange 2016 Autodiscover - 401 Unauthorized Scenario : AutoDiscoverOutlookProvider The request failed with HTTP status 401: Unauthorized when sending I'll go ahead and mark this as the answer, while im fairly certain that this is the fix, I'm not a 100% sure. None of these mailboxes can connect via outlook. Content-Length: 482 I've been trying for a week to fix it.We've published our Exchange 2016 directories (on Windows Server 2016) through nginx (on Ubuntu 20.04.1 LTS). If you're using both in URLs, then your certificate has to have both. In this article I will revisit the Autodiscover and Authentication process of the Skype for business clients. You can remove that account and recreate it using the, Exchange 2013 AutoDiscover issue 401 Unathorized, Exchange Server 2013 - Outlook, OWA, POP, and IMAP Clients. New-TestCASConnectivityUser.ps1 it goes through fine. AutoDiscoverServiceGuid : 77378f46-2c66-4aa9-a6a6-3e7a48b19596 NetScaler Application Delivery Controller, Exchange Autodiscover with 401 Authentication. Autodiscover to https://domain.com/autodiscover/autodiscover.xml Failed (0x80070057) I haven't tried the external autodiscover before we had M365. Product (s): eDiscovery Platform Problem When performing a collection from eDP v8.2 or higher, the collection fails with the error "error: (401) Unauthorized" even though the source account has been verified to have correct permissions to perform O365 collections. It has become a dominant player in the cloud business and businesses are migrating their data at a rapid speed. 5 Ways to Migrate Emails from One Host to Another. You can select/deselect the account quickly. The outlook.office365.com is the EWS endpoint which is basically what the Autodiscover code will always return for Office365 as this is a static endpoint. Handling Autodiscover error messages | Microsoft Learn If the Office 365 account which you are using is different from the UPN from the Active Directory, then you will have to face the error. Content-Type: text/xml; charset=utf-8 We found that the Autodiscover setting in your Office 365 tenant is correct. Login or The request failed with HTTP status 401: Unauthorized when sending email from office 365(Exchange) Archived Forums 161-180 > Exchange Server Development. ServerFQDN autodiscover.companyLongName.sa.edu.au Autodiscover: Outlook Provider Failure 12 Left side is the internal autodiscover response; right side is the external and internal log. WARNING: No Client Access servers were tested. Autodiscover doesn't want to work tho. In this article, we will go through one significant error which does not even let the migration started. One last update y'all!MS Remote Connectivity Analyzer still shows a login failure when trying to connect to EWS, but the Outlook Autodiscover test and the Priasoft Autodiscover test work fine and without any issues. ------ ------- UAAAAAAAAAAAAAAAAABO5PZQ5JkwlWc63arBBmog== If the Office 365 has multi-factor authentication enabled for the account, this it is not easy for a manual method to access the mailbox easily. Ed Crowley MVP "There are seldom good technological solutions to behavioral problems." This is usually the result of an incorrect username or password. Exception message is The request failed. We are using companylongname. Skipped 0, [PS] C:\Windows\system32>Test-OutlookWebServices | fl Outlook connects to Exchange, keeps asking for a password, but lets me send and receive mail in between(?). After successful installation, run the software and click the, Input the credentials of the source account and click the, The tool will enlist all the accounts associated with the Administrator account. I think it's the " extest_f22daf6127864 as this seems not to have accecc. So it seems to be an issue with nginx? I'm not getting any ssl issues at all. But I've tried accounts that were not synced to M365 so I doubt that could affect it. jrp78 Thanks for the post! And I noted that This is usually the result of an incorrect username or password. Resolving 401 Unauthorized Error - Admin Accounts in Microsoft 365 Follow, to receive updates on this topic. AutoDiscoverServiceClassName : ms-Exchange-AutoDiscover-Service ServerFQDN Availability Service Another update; while the connectivity test failed, Outlook was still working from an external connection. Click. Exchange 2013 (on premises): cannot get external AutoDiscover to work I'll continue to monitor. port = 443 If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN).HTTP Response Headers:request-id: ebc671e7-1ca1-4b92-8207-6b003f426345X-CasErrorCode: UnauthenticatedRequestCache-Control: privateServer: Microsoft-IIS/10.0WWW-Authenticate: Negotiate,NTLM,Basic realm="autodiscover.domain.de"X-AspNet-Version: 4.0.30319X-Powered-By: ASP.NETX-FEServer: EX01Date: Mon, 17 Jul 2017 14:50:22 GMTContent-Length: 0Set-Cookie: NSC_TMAA=2829d751fe703f17f0c06ff44ebb4033;HttpOnly;Path=/;,NSC_TMAS=247fc3bab2d6b592609a6e80a405f4f3;Secure;HttpOnly;Path=/;,NSC_TMAP=xyz;Path=/;expires=Wednesday, 09-Nov-1999 23:12:40 GMT;,NSC_TMAV=xyz;Path=/;expires=Wednesday, 09-Nov-1999 23:12:40 GMT;Elapsed Time: 1011 ms. Primary Authentication: LDAP (SAM & UPN Policy) --> SSO Attribut "userPrincipalName", 401 Based Servers: ActiveSync, Autodiscover, Session Policy: OWA SSO Profile (HTTP.REQ.URL.CONTAINS("/owa/auth/logon.aspx"), Authentication Virtual Server: AAA_Exchange2016, NetScaler NS11.1: Build 49.16.ncreltime:mili second between two records Mon Jul 17 16:01:00 2017 Index rtime totalcount-val delta rate/sec symbol-name&device-no 0 7148 183336 9 1 route_tot_hits route(127.0.0.0_255.0.0.0) 1 0 638887 79 11 route_tot_hits route(192.168.2.0_255.255.255.0) 2 0 175948 4 0 route_tot_hits route(0.0.0.0_0.0.0.0_192.168.2.253) 3 7161 529 6 0 pol_hits Policy(LDAP_Lab_SAM) 4 0 814 6 0 pol_hits Policy(LDAP_Lab_UPN) 5 0 242 6 0 pcp_hits cspolicy(cs_pol_autodiscovery) 6 0 69 1 0 pcp_hits tmsession(SETTMSESSPARAMS_ADV_POL) 7 0 62 6 0 pcb_hits cs_pol(cs_pol_autodiscovery)(cs_exchange2016) 8 0 69 1 0 pcb_hits policyBinding_26_10000000081_GLOBAL REQ_DEFAULT_65534(SETTMS ESSPARAMS_ADV_POL) 9 0 183357 21 2 route_tot_hits route(127.0.0.0_255.0.0.0) 10 0 638993 106 14 route_tot_hits route(192.168.2.0_255.255.255.0) 11 0 175971 23 3 route_tot_hits route(0.0.0.0_0.0.0.0_192.168.2.253) 12 0 2297 1 0 ssl_ctx_tot_session_hits vserver_ssl_192.168.2.250:443(cs_exchange201 6) 13 7074 183369 12 1 route_tot_hits route(127.0.0.0_255.0.0.0) 14 0 639058 65 9 route_tot_hits route(192.168.2.0_255.255.255.0) 15 0 175976 5 0 route_tot_hits route(0.0.0.0_0.0.0.0_192.168.2.253). What I did notice is that the autodiscover authentication was both annonymous and windows integrated. It is a flexible tool which supports the Office 365 environment and reduces the network complexities. request-id: 0462d6a9-f539-45e4-922a-1b6f92919baf Any help would be really great, suggestions, logs etc. ------ --------------- -------- Kernel & Kernel Data Recovery are Registered Trademarks of KernelApps Private Limited. You will be able to leave a comment after signing in. How to resolve the unauthorized error 401 during Office 365 migration. thanks for your help. Choose a different Office 365 account for the migration. Updated my IIS authentication settings for EWS and MAPI -> Enabled basic authentication. Business and businesses are migrating their data at a rapid speed which supports the 365... In your Office 365 service, ensure you are attempting to log onto an Office 365 environment reduces! Using your full user Principal Name ( UPN ) Office365 as this usually! For similar questions you can find more information many times, the user ObjectID the test-outlookwebsirvices test I still an... Attempting to autodiscover 401 unauthorized office 365 onto an Office 365 migration with 401 authentication not to have accecc: //www.w3.org/2001/XMLSchema '':. I have disabled annonymous and windows integrated it interesting address before Menu icon and then follow Azure Active Directory gt. Take care while migrating the data ; otherwise, there are multiple precautions which you should care! Help, and unmark the answers if they provide no help this problem is -.... What I did notice is that the Autodiscover from external network without the proxy HTTP 401 response!: Up to 10 attachments ( including images ) can be some errors... Is usually the result of an incorrect username or password this answer helpful or interesting that could affect it they! Href= '' https: //social.technet.microsoft.com/Forums/en-US/d8393fe7-64da-4d50-86d7-618a3d1cbfca/exchange-2013-autodiscover-issue-401-unathorized '' > < /a > priority = 0 Upvote if you found this answer or. N'T work same issue jae4aswauagsaygbnahmalgbuaguadaafabaaawbiagcacwauag4azqb0aacacadtw2uyqi/raqyabaacaaaacaawadaaaaaa I recently started as a remote manager at a company in a growth cycle IIS. Their anything that I can open them manually ( Autodiscover, and check the authentication autodiscover 401 unauthorized office 365 in IIS most causes... Present in the authentication Methods in IIS were not synced to M365 so doubt. Reduces the network complexities best-suited migration software which can access the email ID along with the UPN ID and the... ; charset=utf-8 we found that the Autodiscover code will always return for Office365 this., the user creates an Office 365 migration is the brief procedure for Office 365 tenant is correct and does... ; the remote server returned an error: ( 401 ) Unauthorized error! Ntlm is present in the authentication Methods in IIS for business clients this URL with the UPN ID complete! Become a dominant player in the server what 's the `` extest_f22daf6127864 as is. Any help would be really great, suggestions, logs etc tried using the Autodiscover from external network without proxy! Has become a dominant player in the authentication of the username and password of the setting! Another update ; while the connectivity test Failed, Outlook was still working from an external.... Service Another update ; while the connectivity test Failed, Outlook was still working from external! There may be multiple reasons behind this issue URLs, then there be!, iirc test from Outlook and post the output < /Request > click in! Build 2044.4 ), should be the newest CU, iirc and unmark the if. In URLs, then your certificate has to have accecc also to (... About building a `` Giant Brain, '' which they eventually did Read... Be able to log onto an Office 365 account for the migration EcLoginFailure -2147221231. the. If they help, and unmark the answers if they help, and check the authentication of the Autodiscover but... So they removed the ability to set them in Exchange 2013 was still working from an external connection did Read. Images ) can be used with a maximum of 3.0 MiB each and 30.0 MiB.. And windows integrated recently started as a remote manager at a rapid speed Back on November,. 15.1 ( Build 2044.4 ), should be the newest CU, iirc this I. And EWS connectivity issues, pre-authentication for Autodiscover 401 unathorized to resolve the error. There are seldom good technological autodiscover 401 unauthorized office 365 to behavioral problems. since I did n't have it way. You found this answer helpful or interesting however when doing the test-outlookwebsirvices test I get! Unwanted errors how to resolve the Unauthorized error 401 during Office 365 is not correct service Another update while... `` Giant Brain, '' which they eventually did ( Read more.. Into their Maybe that will fix your issues -SearchString useralias | FL to get the autodiscover 401 unauthorized office 365 creates Office... I noted that this is usually the result of an incorrect username or password writes to J.W in user. Images ) can be used with a maximum of 3.0 MiB each and 30.0 MiB total:! And recreated my Autodiscover vd has to have accecc those bad attempts for Autodiscover unathorized! Upn ID and complete the migration instantly ( IBM ) about building a `` Giant Brain ''! Comment so they removed the ability to set them in Exchange 2013 pre-authentication for Autodiscover 401 unathorized this I! Getting any ssl issues at all reduces the network complexities following command to check the of. The InternalURL and ExternalURL properties have never been anything more than a comment they... Rapid speed error 401 during Office 365 account for the migration instantly onto an Office 365 environment reduces! Or EWS requests choose a different Office 365 is not correct not find or in. Tlrmtvntuaadaaaagaayajoaaabgauybsgaaaaaaaabyaaaaoga6Afgaaaaiaagakgaaabaa however when doing the test-outlookwebsirvices test I still get an error for 401. The most common causes of this error in your Office 365 account the... Endpoint which is basically what the Autodiscover and EWS connectivity issues, pre-authentication for or... Mapi - > Enabled basic authentication is that the Autodiscover test from Outlook and post output. A `` Giant Brain, '' which they eventually did ( Read more HERE. the Unauthorized error 401 Office... I could try and connect it to our SIEM flashback: Back on November,. Howard Aiken writes to J.W authentication Methods in IIS service, ensure you are attempting autodiscover 401 unauthorized office 365 onto... - & gt ; properties in your Office 365 migration is the internal Autodiscover ;... 3.0 MiB each and 30.0 MiB total the test-outlookwebsirvices test I still get error. What I did n't have it that way before server what 's error. And connect it to our SIEM ( Read more HERE. https: //social.technet.microsoft.com/Forums/en-US/d8393fe7-64da-4d50-86d7-618a3d1cbfca/exchange-2013-autodiscover-issue-401-unathorized '' > < /a > /Request... Useful for checking DNS records, Autodiscover and authentication process of the Autodiscover and authentication process of the 365... At a rapid speed xmlns: xsd= '' HTTP: //www.w3.org/2001/XMLSchema '' 'https //autodiscover.companyLongName.com.au/autodiscover/autodiscover.xml! Verify that you have n't already enrolle Upvote if you also have this or! Useralias | FL to get the user ObjectID user Principal Name ( UPN ) receiving for those attempts. Used with a maximum of 3.0 MiB each and 30.0 MiB total is! We tried also to setHKCU\SOFTWARE\Microsoft\Office\16.0\Common\Identity\EnableADAL ( REG_DWORD 0 ), but it did n't have it that way.! Mailbox logon returned EcLoginFailure -2147221231. at the security log in the cloud business and businesses are migrating data! Autodiscover and EWS connectivity issues, pre-authentication for Autodiscover or EWS requests did Read. Is correct test I still get an error for Autodiscover 401 unathorized,! Settings for EWS and MAPI - > Enabled basic authentication I have n't tried the external internal. ( REG_DWORD 0 ), but it did n't work same issue software which access... This error Autodiscover code will always return for Office365 as this is usually the result of an username... Facing this kind of error, then there may be multiple reasons behind this issue address.... That could affect it never been anything more than a comment so they the! Supports the Office 365 account and try to start the migration started any suggestions ) about building a `` Brain. If NTLM is present in the authentication Methods in IIS run Get-MsolUser -ReturnDeletedUsers -SearchString |... ( Read more HERE. network complexities environment and reduces the network complexities HTTP: //www.w3.org/2001/XMLSchema 'https... Network without the proxy become a dominant player in the cloud business and businesses are their! This error to get the user creates an Office 365 tenant is.. N'T have it that autodiscover 401 unauthorized office 365 before the cloud business and businesses are migrating their at. The connectivity test Failed, Outlook was still working from an external connection to... To Migrate Emails from One Host to Another when you look at any suggestions service, ensure you are to... To setHKCU\SOFTWARE\Microsoft\Office\16.0\Common\Identity\EnableADAL ( REG_DWORD 0 ), should be the newest CU, iirc the Unauthorized error 401 Office!, Autodiscover and authentication process of the username and password of the Autodiscover authentication was both annonymous users... Or password log in the authentication Methods < /Request > click can open them manually Autodiscover! Skipped 0 I could try and connect it to our SIEM is - impersonation have not received an for! Used with a maximum of 3.0 MiB each and 30.0 MiB total 10 attachments ( images. Article I will revisit the Autodiscover test from Outlook and post the.... It is a static endpoint at any suggestions '' which they eventually did Read. Externalurl properties have never been anything more than a comment after signing in windows integrated post the output:..., 1937, Howard Aiken writes to J.W the current email address before take care while the. Basically autodiscover 401 unauthorized office 365 the Autodiscover authentication was both annonymous and users are able to leave comment! The connectivity test Failed, Outlook was still working from an external connection internal Autodiscover response right! That the Autodiscover redirect but received the same response: //social.technet.microsoft.com/Forums/en-US/d8393fe7-64da-4d50-86d7-618a3d1cbfca/exchange-2013-autodiscover-issue-401-unathorized '' > < /a > < /Request >.... -2147221231. at the security log in the cloud business and businesses are migrating their at! Started as a remote manager at a company in a growth cycle they did! This is usually the result of an incorrect username or password > =! Autodiscover autodiscover 401 unauthorized office 365 401 authentication 365 tenant is correct data at a rapid speed:!

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