Verizon Firewall Blocking Some UDP Traffic?
Anybody else seeing this? Or have an explanation?
We have an application that involves two handsets communicating with each other by way of a server in the middle. The traffic is a combination of TCP and UDP. It's been working fine for about two years now, until lately.
We've lately been having trouble that looks like a firewall somewhere in the middle preventing the server from talking UDP to the handset until the handset has first talked to the server. Once the handset talks to the server on a particular port, the server can send UDP on that port freely for a few minutes. Then after a few (idle) minutes, the curtain comes down and the handset has to initiate again before the server can get through to it.
We started having thi...
(continues)
We have an application that involves two handsets communicating with each other by way of a server in the middle. The traffic is a combination of TCP and UDP. It's been working fine for about two years now, until lately.
We've lately been having trouble that looks like a firewall somewhere in the middle preventing the server from talking UDP to the handset until the handset has first talked to the server. Once the handset talks to the server on a particular port, the server can send UDP on that port freely for a few minutes. Then after a few (idle) minutes, the curtain comes down and the handset has to initiate again before the server can get through to it.
We started having thi...
(continues)
...
SteveKier said:
It's like the old ones are grandfathered in but there's no way to get new handsets on board.
Thats what grandfathered would be. Old ones work, no way to get new ones on board. If something is grandfathered, you would be limited to those activated prior to the change.
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