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Thom Mckiernan Admin's avatar
Thom Mckiernan Admin
Copper Contributor
Mar 06, 2018
Solved

Skype Room System shows calendar info but can't sign in

We have 2 Logitech SRS systems that we are testing before a wider rollout (over 70 in total)   We have one kit working perfectly, but the other gives an error saying: "We can't sign you in beca...
devices
Room System
Sign-in
  • Thom McKiernan's avatar
    Thom McKiernan
    May 24, 2018

    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

     

     

Thom Mckiernan Admin's avatar
Thom Mckiernan Admin
Copper Contributor
Mar 06, 2018
Looks like there is something funny with our network but could still do with help identifying it.

If I connect the smartdock to our LAN it will not be able to sign in
If I then connect it to any public wifi it can sign in.
If I then plug it back into the LAN then it is now able to sign in.

This makes me think it caches something after a successful sign-in that it doesn't need to do on subsequent sign-ins?

So still related to the firewalls on our LAN but not a port/URL that it needs each time!?
Anonymous's avatar
Anonymous
Mar 07, 2018
Is the dock powered correctly? I've noticed sometimes if the dock isn't powered then no LAN connection is possible.

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.
  • Thom Mckiernan Admin's avatar
    Thom Mckiernan Admin
    Copper Contributor
    Mar 12, 2018

    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

    • Tobias Westerlin's avatar
      Tobias Westerlin
      Copper Contributor
      Apr 25, 2018

      Had the same issue, but mine was solved after doing a full manual sync from our local AD.

  • Oliphantj's avatar
    Oliphantj
    Copper Contributor
    Mar 07, 2018

    Any luck.  I have the same issue.  I know it is behind a proxy but the message is not very helpful.  I noticed there is an update to 1709 but it wants to uninstall some Skype things.  Have you tried that?  Not sure if the system will still work after?

    Jason

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