Hello,
For the past year we have been having issue with video conferencing (audio dropping, calls dropping) We reached out to our ISP first and they determined that the issue was on our end. We believe that the issue is the firewall as users that are working remotely and connected to the VPN experience the same issue. I even bypassed the firewall completely and connect to the ISPs equipment directly and did not have any issue in my testing. I have a support ticket open but haven't really gotten anywhere with them as this issue is intermittent.
We have added all the Microsoft 365 IPs to an exception per this KB https://docs.microsoft.com/en-us/microsoft-365/enterprise/urls-and-ip-address-ranges?view=o365-worldwide#skype-for-business-online-and-microsoft-teams
and the Zoom IPs via this KB: https://support.zoom.us/hc/en-us/articles/201362683-Network-firewall-or-proxy-server-settings-for-Zoom
we have also tried this KB: https://support.sophos.com/support/s/article/KB-000037055?language=en_US to no avail.
When the issue occurs I don't see any blocks in the log viewer.
This a very annoing issue that I've been tracing down for far to long and I am quite frustrated at this point.
Any help would be appreciated.
-Thanks
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