Competenz Helpdesk

Microsoft Teams audio / video calls fails over VPN (Workaround)

ISSUE: 

Scenario 1: When a user tries to start an audio or video call from their individual or group Microsoft Teams chat while they’re connected on the Fortinet VPN client, this error shows up.

Clicking on the “More Information” brings us to this site.

https://docs.microsoft.com/en-nz/office365/enterprise/urls-and-ip-address-ranges?redirectSourcePath=%252farticle%252fOffice-365-URLs-and-IP-address-ranges-8548a211-3fe7-47cb-abb1-355ea5aa88a2

Scenario 2: When one user is on VPN and the one making the audio / video call is not, this error pops up.

WORKAROUNDS

Here are some simple steps to do as a workaround to the above mentioned issues.

Workaround # 1 - Disconnect VPN 

• If you don’t require VPN to conclude your audio or video call, then you can just simple disconnect your VPN before you make the call.

  
  

  1. Click on the Forticlient VPN.

     
     

2. Click on the disconnect button.

   
   

   NOTE: This will terminate your connection to P drive or TMS or any other internal systems. 

3. Then make your Microsoft Teams Call 

Workaround # 2 – Make the call without VPN and then connect to the VPN 

• If it is really required to be connected to the VPN for your audio / video Microsoft teams call, you can follow the steps on Workaround #1 and then connect to the VPN. 

1. Follow the steps on Workaround #1 (see above).

   
   

2. Then connect to the VPN, launch the VPN client.

   
   

3. Then login with your username and password (same as your laptop password) and then click connect while you’re still on the call.

   
   

   

Workaround # 3 – Schedule a teams meeting via outlook.

• If you schedule a teams meeting via outlook, you can join and hold that meeting without any issue even while on VPN.

1. Go to Outlook -> Calendar -> New Teams Meeting

   
   

2. The Join Microsoft Teams Meeting link will enable you to join the call while on VPN.