Forum Discussion
Skype Room System shows calendar info but can't sign in
Resolved!
We have now fixed this issue and it turns out it was firewall related. This is why it worked on our (Guest) Wi-Fi because that doesn't go through a firewall in the same way.
An easy way to check is to run Microsoft's https://www.microsoft.com/en-us/download/details.aspx?id=53885 in "Connectivity Check" mode. It only takes a minute to run and enabled us to give our network team the exact info on what was getting blocked.
It turned out, although we had added all of the URLs & IPs from the official Microsoft list, our next-gen layer 7 firewall was blocking particular ports (UDP 3478, 3479, 3480, 3481). We had to add these ports to our "STUN rule" to get them working.
After that was done, the SRS logged in immediately
I have a similar issue, I moved mine from one SfB deployment to a other and then back and I am experiencing signing into the calendar (O365) but not SfB (on-premises). Something I need to troubleshoot.
Power looks fine, I can browse web pages under the admin account without issue (including signing into the office portal and Teams online).
I just rebuilt one of the devices and it's happened again, although this time, signing-in over WiFi and then back in over the LAN didn't fix it :'(
I'm logging this with Premier Support now
Had the same issue, but mine was solved after doing a full manual sync from our local AD.
