Firmware Update Failing on Teams Phone

[Edwin_Tek]

Hello Please, I need your help on this issue.

I am attempting to update the firmware on Teams Phones and they are failing - I need assistance to get them updated.

I have attached a screenshot to this message

[#2]

@Edwin_Tek 

Did you ever fix this issue of failed firmware updates?

[#3]

@Edwin_Tek Was wondering if you ever found a solution.  We do pretty extensive Geo-blocking on our firewall, so I suspect that, but I can't find a list of URLs needed to update these devices online.  We will take the time to packet trace and filter through the firewall logs to try to find the block, but I was wondering if someone had gotten a list from support.