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IOS user can't login SFB apps, but android user can. RRS feed

  • Question

  • Hi 

    Our system is skype for business on premise. Yesterday, all IOS users cannot login, only Android users haven't this issue. We have collected the log from mobile app here.



    2020-04-15 13:44:57.049 000000016ecb7000 INFO TRANSPORT CHttpRequestProcessor.cpp:240 Sending event to main thread for request(0x0x107760f70)
    2020-04-15 13:44:57.049 0000000103121800 INFO APPLICATION CTransportRequestRetrialQueue.cpp:614 Response received for req. OnlineTenantAutoDiscover (0x0x107760f70): S_OK (S0-0-0) (Success)
    2020-04-15 13:44:57.050 0000000103121800 INFO APPLICATION CTransportRequestRetrialQueue.cpp:666 Response received for req. OnlineTenantAutoDiscover (0x0x107760f70); Done with req.
    2020-04-15 13:44:57.050 0000000103121800 INFO APPLICATION CTransportRequestRetrialQueue.cpp:838 Req. completed, Stopping timer.
    2020-04-15 13:44:57.067 0000000103121800 INFO UTILITIES CBasePersistableComponent.cpp:211 Storing 1 out-of-sync components took 0.016513s
    2020-04-15 13:44:57.068 0000000103121800 INFO APPLICATION CUcwaAutoDiscoveryService.cpp:2572 Online Tenant AutoDiscovery: Received a redirect response from https://webdir.online.lync.com/autodiscover/autodiscoverservice.svc/root?sipuri=
    2020-04-15 13:44:57.081 0000000103121800 INFO UTILITIES CBasePersistableComponent.cpp:211 Storing 1 out-of-sync components took 0.011916s
    2020-04-15 13:44:57.081 0000000103121800 INFO APPLICATION CClientTelemetryProvider.cpp:428 Sending telemetry to ARIA for type(SignInAutoDiscoveryTransition) signatureName() errorCode(S_OK (S0-0-0)) description() diagnosticLevel(0) minimumAllowedDiagnosticLevel(100) [viz]
    2020-04-15 13:44:57.082 0000000103121800 INFO APPLICATION CClientTelemetryProvider.cpp:630 Sending telemetry event<SignInAutoDiscoveryTransition> with parameters: (AuthType:FedBearerTokenAuthentication AutodiscoveryState:OnlineTenantADStarted HasAppEverSignedIn:No HasUserEverSignedIn:No InitiationPoint:SignInButton IsAnonFallback:false IsAnonymousSession:false IsOAuthIssuerInvalid:true OnlineTenantADState:DiscoveredGlobal ServerDeploymentInfo:Unknown ServerResponseDate:Wed, 15 Apr 2020 13:44:56 GMT ServerResponseStatusCode:200 SignInCorrelationId:DDA03980-3C2E-4129-862D-2AD6EA750CF9 SipUriSetBy:DiscoverUcwaUrlsForUser Substep:OnlineTenant_RootRequest SuspensionState:SuspensionCompleted UcwaSessionState:IsAutoDiscovering UseInternalUcwaUrl:false UserEnabledProxy:false UserEnteredPassword:true UserEnteredUsername:false UsernameMatchesSip:true )  [viz]
    2020-04-15 13:44:57.093 0000000103121800 INFO UTILITIES CBasePersistableComponent.cpp:211 Storing 1 out-of-sync components took 0.010084s
    2020-04-15 13:44:57.093 0000000103121800 INFO TRANSPORT CTransportThread.cpp:132 Added Request(UcwaAutoDiscoveryRequest) to Request Processor queue
    2020-04-15 13:44:57.094 0000000103121800 INFO APPLICATION CTransportRequestRetrialQueue.cpp:367 Submitting new req. GET-UnauthenticatedRootGetRequest(0x107501940)
    2020-04-15 13:44:57.094 0000000103121800 INFO APPLICATION CUcwaAutoDiscoveryService.cpp:1289 Submitting Unauthenticated AutoDiscovery request to https://webdir.online.lync.com/autodiscover/autodiscoverservice.svc/root?sipuri=sip:Useraccount@*****.com.***
    2020-04-15 13:44:57.095 000000016ecb7000 INFO TRANSPORT CTransportThread.cpp:343 Sent Request(UcwaAutoDiscoveryRequest) to Request Processor
    2020-04-15 13:44:57.095 000000016ecb7000 WARNING TRANSPORT CCredentialManager.cpp:291 CCredentialManager::getSpecificCredential returning NULL credential for serviceId (4) type (1)!
    2020-04-15 13:44:57.096 000000016ecb7000 INFO TRANSPORT TransportUtilityFunctions.cpp:713 <SentRequest>
    GET https://webdir.online.lync.com/autodiscover/autodiscoverservice.svc/root?sipuri=sip:Useraccount@*****.com.***
    Request Id: 0x107501940
    HttpHeader:Accept application/vnd.microsoft.rtc.autodiscover+xml;v=1


    </SentRequest>

    2020-04-15 13:44:57.096 000000016ecb7000 INFO UTILITIES CHttpStreamPool.cpp:399 Allocating stream 0x83835c20 for url - https://webdir.online.lync.com/autodiscover/autodiscoverservice.svc/root with persistent id as 6
    2020-04-15 13:44:57.097 000000016ecb7000 VERBOSE TRANSPORT CHttpProxyHelper.cpp:434 CHttpProxyHelper::discoverProxy : No proxy found for url https://webdir.online.lync.com/autodiscover/autodiscoverservice.svc/root?sipuri=sip:Useraccount@*****.com.***. Sending over direct connection.
    2020-04-15 13:44:57.098 000000016ecb7000 INFO UTILITIES CHttpStreamPool.cpp:599 Releasing stream 0x83831d40.
    2020-04-15 13:44:57.102 0000000103121800 INFO UTILITIES CBasePersistableComponent.cpp:211 Storing 1 out-of-sync components took 0.007651s
    2020-04-15 13:44:57.103 0000000103121800 INFO APPLICATION CTransportRequestRetrialQueue.cpp:731 Response received for req. OnlineTenantAutoDiscover (0x0x107760f70); Stopping resend timer.
    2020-04-15 13:44:57.170 000000016ecb7000 INFO UTILITIES CHttpConnection.cpp:594 Received kCFStreamEventEndEncountered (UcwaAutoDiscoveryRequest)isHeadersAvailable = true  responseHeadersHandle = 7726070
    2020-04-15 13:44:57.172 000000016ecb7000 INFO UTILITIES CHttpConnection.cpp:666 Response status = 200 for request UcwaAutoDiscoveryRequest
    2020-04-15 13:44:57.172 000000016ecb7000 INFO UTILITIES CHttpStreamPool.cpp:445 Scheduling stream 0x83835c20 for release.
    2020-04-15 13:44:57.173 000000016ecb7000 INFO TRANSPORT CHttpRequestProcessor.cpp:155 Received response for request Id: 0x107501940 and request(UcwaAutoDiscoveryRequest) with status = S_OK (S0-0-0)
    2020-04-15 13:44:57.173 000000016ecb7000 INFO TRANSPORT TransportUtilityFunctions.cpp:1109 <ReceivedResponse>
    GET https://webdir.online.lync.com/autodiscover/autodiscoverservice.svc/root?sipuri=sip:Useraccount@*****.com.***
    Request Id: 0x107501940
    HttpHeader:Cache-Control no-cache
    HttpHeader:Content-Length 969
    HttpHeader:Content-Type application/vnd.microsoft.rtc.autodiscover+xml; v=1
    HttpHeader:Date Wed, 15 Apr 2020 13:44:57 GMT
    HttpHeader:Expires -1
    HttpHeader:Pragma no-cache
    HttpHeader:StatusCode 200
    HttpHeader:Strict-Transport-Security max-age=31536000; includeSubDomains
    HttpHeader:X-Content-Type-Options nosniff
    HttpHeader:x-ms-client-request-id 7ae5ce70-40d3-45ed-ba74-ca2bfcb58cf7
    HttpHeader:X-MS-Correlation-Id 6141639c-d587-456a-9e4b-69342a9bbf9b
    HttpHeader:X-MS-Server-Fqdn HK20F00EDG09.infra.lync.com

    <?xml version="1.0" encoding="utf-8"?><AutodiscoverResponse xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" AccessLocation="External"><Root><Link token="Domain" href="https://webdir0f.online.lync.com/Autodiscover/AutodiscoverService.svc/root/domain?originalDomain=*****.com.***" /><Link token="User" href="https://webdir0f.online.lync.com/Autodiscover/AutodiscoverService.svc/root/user?originalDomain=*****.com.***" /><Link token="Self" href="https://webdir0f.online.lync.com/Autodiscover/AutodiscoverService.svc/root?originalDomain=*****.com.***" /><Link token="OAuth" href="https://webdir0f.online.lync.com/Autodiscover/AutodiscoverService.svc/root/oauth/user?originalDomain=*****.com.***" /><Link token="External/XFrame" href="https://webdir0f.online.lync.com/Autodiscover/XFrame/XFrame.html" /><Link token="XFrame" href="https://webdir0f.online.lync.com/Autodiscover/XFrame/XFrame.html" /></Root></AutodiscoverResponse>
    </ReceivedResponse>
    2020-04-15 13:44:57.175 000000016ecb7000 INFO TRANSPORT CUcwaAutoDiscoveryResponse.cpp:116 location value is external
    2020-04-15 13:44:57.175 000000016ecb7000 INFO TRANSPORT CUcwaAutoDiscoveryResponse.cpp:190 User url is https://webdir0f.online.lync.com/Autodiscover/AutodiscoverService.svc/root/user?originalDomain=*****.com.***
    2020-04-15 13:44:57.176 000000016ecb7000 INFO TRANSPORT CHttpRequestProcessor.cpp:240 Sending event to main thread for request(0x0x107501940)
    2020-04-15 13:44:57.188 0000000103121800 INFO UTILITIES CBasePersistableComponent.cpp:211 Storing 1 out-of-sync components took 0.011046s
    2020-04-15 13:44:57.196 0000000103121800 INFO UTILITIES CBasePersistableComponent.cpp:211 Storing 1 out-of-sync components took 0.007955s
    2020-04-15 13:44:57.202 0000000103121800 INFO UTILITIES CBasePersistableComponent.cpp:211 Storing 1 out-of-sync components took 0.005871s
    2020-04-15 13:44:57.209 0000000103121800 INFO UTILITIES CBasePersistableComponent.cpp:211 Storing 1 out-of-sync components took 0.006033s
    2020-04-15 13:44:57.209 0000000103121800 INFO APPLICATION CTransportRequestRetrialQueue.cpp:614 Response received for req. GET-UnauthenticatedRootGetRequest (0x0x107501940): S_OK (S0-0-0) (Success)
    2020-04-15 13:44:57.209 0000000103121800 INFO APPLICATION CTransportRequestRetrialQueue.cpp:666 Response received for req. GET-UnauthenticatedRootGetRequest (0x0x107501940); Done with req.
    2020-04-15 13:44:57.209 0000000103121800 INFO APPLICATION CTransportRequestRetrialQueue.cpp:838 Req. completed, Stopping timer.
    2020-04-15 13:44:57.210 0000000103121800 INFO APPLICATION CUcwaAutoDiscoveryService.cpp:1466 Received autodiscovery response with status S_OK (S0-0-0)
    2020-04-15 13:44:57.210 0000000103121800 INFO APPLICATION CUcwaAutoDiscoveryService.cpp:1541 AutoDiscovery: Received a root response from https://webdir.online.lync.com/autodiscover/autodiscoverservice.svc/root?sipuri=sip:Useraccount@*****.com.***
    2020-04-15 13:44:57.216 0000000103121800 INFO UTILITIES CBasePersistableComponent.cpp:211 Storing 1 out-of-sync components took 0.006051s
    2020-04-15 13:44:57.217 0000000103121800 INFO APPLICATION CClientTelemetryProvider.cpp:428 Sending telemetry to ARIA for type(SignInAutoDiscoveryTransition) signatureName() errorCode(S_OK (S0-0-0)) description() diagnosticLevel(0) minimumAllowedDiagnosticLevel(100) [viz]
    2020-04-15 13:44:57.217 0000000103121800 INFO APPLICATION CClientTelemetryProvider.cpp:630 Sending telemetry event<SignInAutoDiscoveryTransition> with parameters: (AuthType:FedBearerTokenAuthentication AutodiscoveryState:ADRootGetRequestSent HasAppEverSignedIn:No HasUserEverSignedIn:No InitiationPoint:SignInButton IsAnonFallback:false IsAnonymousSession:false IsOAuthIssuerInvalid:true OnlineTenantADState:DiscoveredGlobal ServerDeploymentInfo:Unknown ServerResponseCorrelationId:6141639c-d587-456a-9e4b-69342a9bbf9b ServerResponseDate:Wed, 15 Apr 2020 13:44:57 GMT ServerResponseStatusCode:200 SignInCorrelationId:DDA03980-3C2E-4129-862D-2AD6EA750CF9 SipUriSetBy:DiscoverUcwaUrlsForUser Substep:RootRequest_AuthUserGet SuspensionState:SuspensionCompleted UcwaSessionState:IsAutoDiscovering UseInternalUcwaUrl:false UserEnabledProxy:false UserEnteredPassword:true UserEnteredUsername:false UsernameMatchesSip:true )  [viz]
    2020-04-15 13:44:57.223 0000000103121800 INFO UTILITIES CBasePersistableComponent.cpp:211 Storing 1 out-of-sync components took 0.005777s
    2020-04-15 13:44:57.223 0000000103121800 INFO TRANSPORT CCredentialManager.cpp:172 getSpecificCredential for serviceId(1) returning: credType (1) signInName (Useraccount@*****.com.***) domain () username (Useraccount@*****.com.***) password.empty() (0) certificate.isValid() (0) privateKey.empty() (1) compatibleServiceIds(1)
    2020-04-15 13:44:57.223 0000000103121800 INFO TRANSPORT CMetaDataManager.cpp:411 Received a request to get the meta data of type 0 for url https://webdir0f.online.lync.com/Autodiscover/AutodiscoverService.svc/root/user?originalDomain=*****.com.***
    2020-04-15 13:44:57.224 0000000103121800 INFO TRANSPORT CMetaDataManager.cpp:466 Sending Unauthenticated get to get the web-ticket url
    2020-04-15 13:44:57.224 0000000103121800 INFO TRANSPORT CTransportThread.cpp:132 Added Request() to Request Processor queue
    2020-04-15 13:44:57.224 0000000103121800 INFO TRANSPORT CTransportThread.cpp:227 Created thread => context[0x8050a8e0]
    2020-04-15 13:44:57.224 0000000103121800 INFO TRANSPORT CAuthenticationResolver.cpp:146 Waiting on Meta Data from https://webdir0f.online.lync.com/Autodiscover/AutodiscoverService.svc/root/user?originalDomain=*****.com.***
    2020-04-15 13:44:57.224 0000000103121800 INFO APPLICATION CTransportRequestRetrialQueue.cpp:367 Submitting new req. GET-AuthenticatedUserGetRequest(0x107764070)
    2020-04-15 13:44:57.225 0000000103121800 INFO APPLICATION CUcwaAutoDiscoveryService.cpp:1324 Submitting Authenticated AutoDiscovery request to https://webdir0f.online.lync.com/Autodiscover/AutodiscoverService.svc/root/user?originalDomain=*****.com.***
    2020-04-15 13:44:57.225 000000016edcf000 INFO TRANSPORT CTransportThread.cpp:397 Started executing thread => context[0x8050a8e0]
    2020-04-15 13:44:57.225 000000016edcf000 INFO TRANSPORT CTransportThread.cpp:343 Sent Request() to Request Processor
    2020-04-15 13:44:57.226 000000016edcf000 WARNING TRANSPORT CCredentialManager.cpp:291 CCredentialManager::getSpecificCredential returning NULL credential for serviceId (4) type (1)!
    2020-04-15 13:44:57.226 000000016edcf000 INFO TRANSPORT TransportUtilityFunctions.cpp:713 <SentRequest>
    GET https://webdir0f.online.lync.com/Autodiscover/AutodiscoverService.svc/root/user?originalDomain=*****.com.***
    Request Id: 0x107721340
    HttpHeader:Accept 


    </SentRequest>

    2020-04-15 13:44:57.228 000000016edcf000 INFO UTILITIES CHttpStreamPool.cpp:399 Allocating stream 0x83828120 for url - https://webdir0f.online.lync.com/Autodiscover/AutodiscoverService.svc/root/user with persistent id as 16
    2020-04-15 13:44:57.228 000000016edcf000 VERBOSE TRANSPORT CHttpProxyHelper.cpp:434 CHttpProxyHelper::discoverProxy : No proxy found for url https://webdir0f.online.lync.com/Autodiscover/AutodiscoverService.svc/root/user?originalDomain=*****.com.***. Sending over direct connection.
    2020-04-15 13:44:57.230 000000016edcf000 INFO UTILITIES CTimer.cpp:227 Created timer instance (0x82928e38) for runloop (0x83628c00)
    2020-04-15 13:44:57.230 0000000103121800 INFO UTILITIES CBasePersistableComponent.cpp:211 Storing 1 out-of-sync components took 0.004916s
    2020-04-15 13:44:57.230 0000000103121800 INFO APPLICATION CTransportRequestRetrialQueue.cpp:731 Response received for req. GET-UnauthenticatedRootGetRequest (0x0x107501940); Stopping resend timer.
    2020-04-15 13:44:57.472 000000016edcf000 INFO UTILITIES CHttpConnection.cpp:594 Received kCFStreamEventEndEncountered (0x%u0x1072027b0)isHeadersAvailable = true  responseHeadersHandle = 7204550
    2020-04-15 13:44:57.474 000000016edcf000 INFO UTILITIES CHttpConnection.cpp:666 Response status = 401 for request 0x%u0x1072027b0
    2020-04-15 13:44:57.476 000000016edcf000 INFO UTILITIES CHttpConnection.cpp:733 Not send authenticating request(0x%u0x1072027b0).  isAuthObjectValid - 0, areCredentialsValid - 0, resendRequestCounter - 1
    2020-04-15 13:44:57.478 000000016edcf000 INFO UTILITIES CHttpStreamPool.cpp:445 Scheduling stream 0x83828120 for release.
    2020-04-15 13:44:57.480 000000016edcf000 INFO TRANSPORT CHttpRequestProcessor.cpp:155 Received response for request Id: 0x107721340 and request() with status = S_OK (S0-0-0)
    2020-04-15 13:44:57.481 000000016edcf000 INFO TRANSPORT TransportUtilityFunctions.cpp:1109 <ReceivedResponse>
    GET https://webdir0f.online.lync.com/Autodiscover/AutodiscoverService.svc/root/user?originalDomain=*****.com.***
    Request Id: 0x107721340
    HttpHeader:Cache-Control no-cache
    HttpHeader:Content-Length 1293
    HttpHeader:Content-Type text/html
    HttpHeader:Date Wed, 15 Apr 2020 13:44:56 GMT
    HttpHeader:StatusCode 401
    HttpHeader:Strict-Transport-Security max-age=31536000; includeSubDomains
    HttpHeader:Www-Authenticate Bearer trusted_issuers="00000001-0000-0000-c000-000000000000@*", client_id="00000004-0000-0ff1-ce00-000000000000", authorization_uri="https://login.windows.net/common/oauth2/authorize", MsRtcOAuth href="https://webdir0f.online.lync.com/WebTicket/oauthtoken",grant_type="urn:microsoft.rtc:passive,urn:microsoft.rtc:anonmeeting"
    HttpHeader:X-Content-Type-Options nosniff
    HttpHeader:x-ms-client-request-id 46b18733-ccef-4f56-bf1f-0cf5452976a4
    HttpHeader:X-MS-Correlation-Id fc9f079a-89e0-4caf-87b0-658facc3611b
    HttpHeader:X-MS-Server-Fqdn HK20F00EDG07.infra.lync.com
    HttpHeader:X-MS-WebTicketSupported cwt,saml
    HttpHeader:X-MS-WebTicketURL https://webdir0f.online.lync.com/WebTicket/WebTicketService.svc

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>
    <title>401 - Unauthorized: Access is denied due to invalid credentials.</title>
    <style type="text/css">
    <!--
    body{margin:0;font-size:.7em;font-family:Verdana, Arial, Helvetica, sans-serif;background:#EEEEEE;}
    fieldset{padding:0 15px 10px 15px;} 
    h1{font-size:2.4em;margin:0;color:#FFF;}
    h2{font-size:1.7em;margin:0;color:#CC0000;} 
    h3{font-size:1.2em;margin:10px 0 0 0;color:#000000;} 
    #header{width:96%;margin:0 0 0 0;padding:6px 2% 6px 2%;font-family:"trebuchet MS", Verdana, sans-serif;color:#FFF;
    background-color:#555555;}
    #content{margin:0 0 0 2%;;}
    .content-container{background:#FFF;width:96%;margin-top:8px;padding:10px;;}
    -->

    Thursday, April 16, 2020 3:18 AM

All replies

  • Hi TCWoo,

    Could you log in Skype for Business client in IOS system before?

    What do you do before this issue happened?

    Could you provide us a screenshot of the error message?

    According to the client log files, it seems related to the credentials.

    What is the IOS version? There are some new requirements for trusted certificate in IOS 13. You can verify if your certificate meets with this link: https://support.apple.com/en-us/HT210176.

    Moreover, you could check if there is any related error message in Skype for Business server event viewer. This article also gives some troubleshooting methods for client sign in issues. You can refer to it.

    Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.


    Best Regards,
    Sharon Zhao


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Thursday, April 16, 2020 7:01 AM
  • S4B on-prem and requests to https://webdir.online.lync.com/autodiscover...?

    Thursday, April 16, 2020 7:48 AM
  • Hi Sharon

    No screenshot collected, and should not be cert issue, just replaced for 3 weeks that no problem on iphone users. The event happened around 17:30 and suddenly resumed normal around 10:00 this morning. Some logs missing to state out here. 

    2020-04-15 13:44:56.121 000000016ecb7000 INFO UTILITIES CHttpStreamPool.cpp:399 Allocating stream 0x83835b90 for url - https://lyncdiscoverinternal.*****.com.***/ with persistent id as 6
    2020-04-15 13:44:56.122 000000016ecb7000 VERBOSE TRANSPORT CHttpProxyHelper.cpp:434 CHttpProxyHelper::discoverProxy : No proxy found for url https://lyncdiscoverinternal.*****.com.***/?sipuri=sip:Useraccount@*****.com.***. Sending over direct connection.
    2020-04-15 13:44:56.122 000000016ecb7000 INFO UTILITIES CHttpConnection.cpp:594 Received kCFStreamEventEndEncountered (UcwaAutoDiscoveryRequest)isHeadersAvailable = true  responseHeadersHandle = 77620c0
    2020-04-15 13:44:56.122 000000016ecb7000 INFO UTILITIES CHttpConnection.cpp:666 Response status = 404 for request UcwaAutoDiscoveryRequest
    2020-04-15 13:44:56.123 000000016ecb7000 INFO UTILITIES CHttpStreamPool.cpp:445 Scheduling stream 0x83836760 for release.
    2020-04-15 13:44:56.123 000000016ecb7000 INFO TRANSPORT CHttpRequestProcessor.cpp:155 Received response for request Id: 0x1076d1300 and request(UcwaAutoDiscoveryRequest) with status = S_OK (S0-0-0)
    2020-04-15 13:44:56.123 000000016ecb7000 INFO TRANSPORT TransportUtilityFunctions.cpp:1109 <ReceivedResponse>
    GET http://lyncdiscoverinternal.*****.com.***/
    Request Id: 0x1076d1300
    HttpHeader:Connection close
    HttpHeader:Content-Length 315
    HttpHeader:Content-Type text/html; charset=us-ascii
    HttpHeader:Date Wed, 15 Apr 2020 13:44:56 GMT
    HttpHeader:Server Microsoft-HTTPAPI/2.0
    HttpHeader:StatusCode 404

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""http://www.w3.org/TR/html4/strict.dtd">
    <HTML><HEAD><TITLE>Not Found</TITLE>
    <META HTTP-EQUIV="Content-Type" Content="text/html; charset=us-ascii"></HEAD>
    <BODY><h2>Not Found</h2>
    <hr><p>HTTP Error 404. The requested resource is not found.</p>
    </BODY></HTML>

    Thursday, April 16, 2020 7:54 AM
  • Hi TCWoo,

    Now, the IOS client can log in without problem?

    I guess it maybe related to the unstable network or the server.


    Best Regards,
    Sharon Zhao


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Tuesday, April 21, 2020 7:56 AM
  • Hi TCWoo,

    Is there any update on this case?

    Please feel free to drop us a note if there is any update.

    Have a nice day!


    Best Regards,
    Sharon Zhao


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Friday, April 24, 2020 6:31 AM