Forum Discussion
Microsoft SRS sign in to SkyeForBusiness after migrating user to Cloud (Sign in.. to Skype problem)
this could have multiple root causes but lets try out following.
Is SIP proxy address same as UPN and same as Primary SMTP? This proved to me as best practice.
Also check if this attribute on user is setup same way msRTCSIP-PrimaryUserAddress . Sometimes it is missed and hence making issue with login of Skype account.
Is the Skype user now migrated to S4b Online and Teams user is in Islands mode or Teams Only mode? If Teams Only mode then make sure there is still Skype Online license assigned to MTR account.
For Hybrid account coming from on-premise and being migrated to Online you should see InterpretedUserType as Hybrid OnlineSfbUser. Check if Cs-GetCsOnlineUser is really with RegistrarPool set to sippool***.infra.lync.com and is not pointing still to on-premise s4b. I would say hybrid setup is in that manner tricky one.
Is the SIP domain Auto Discovery DNS resolution pointing to on-premise or S4B Online environment?