Hello,
We have a chat program called HUD that is part of our Trixbox phone server. After switching from a Zywall Firewall to SonicWall 215, the program randomly disconnects every 30 sec to 2 mins at different intervals for all users. This affects users inside our network, but not externally.
The program uses one TCP port which is forwarded WAN > LAN pointing to the server.
We also tried adding the QOS to the firewall rule for no avail. We also tried adding a LAN > WAN, all to all, with QOS and that did not help.
If we switch back to our old router, everything is fine.
Any ideas what could cause this?