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Microsoft Skype for Business 2015 server issue - URGENT ATTN reqd.


We have one SFB 2015 Standard edition server and one Edge server configured in our network.  There is no reverse proxy in our network and also we are using third party wild card certificate for both edge and standard edition server.  

Currently I'm having two issues.

1.  Mobile clients are able to login externally without any issues. However, they cannot login while connected to our wi-fi.  After logging in using 4G network, I'm able to work on SFB with wi-fi enabled.  Only the authentication part is not working on wi-fi network.

2.  None of the our internal users can login to SFB client from externally.

Please find attached documentation that clearly explains my network and settings.  Any help in this is really appreciated as the issue is in our live environment.

Conferencing SoftwareIP TelephonyInternet / Email SoftwareMicrosoft ApplicationsCloud Computing

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Mohammed Hamada

8/22/2022 - Mon