Mumble Connection has timed out

[billdan]

Game and Mumble launch with no issues, but mumble will not connect.

"Server connection failed: Connection timed out."

Have tried:
-restarting mumble in-game
-running as admin
-entering server address and connecting manually
-messing with mumble network settings all sorts of ways (TCP/QoS/HTTP Proxy)
-turning off firewalls and adding exceptions for PR and PR mumble. (Windows and Norton)
-reinstalling PR
-messing with certificates/making my own certificates

I doubt it's network related due to TS working fine. Also, I am able to connect to random servers on the public list of standalone mumble.

Win 8.1 64 bit
Norton Endpoint
(wired router) ARRIS Model: TG08DH1862CT
ISP: Comcast

Appreciate any ideas, coming back after 4.5 year hiatus and suffering from stage IV PR nostalgia.

[DC_K]

norton uses HIPS which may be causing this, have you turned that off too?

[billdan]

yes, i have tried disabling norton

[LITOralis.nMd]

try running mods/pr/bin/prmumble/prmumble.exe in windows 7 compatibility mode.

[billdan]

no dice. is there a way to connect standalone Mumble to PR servers and have it work?

[Assurance]

no dice. is there a way to connect standalone Mumble to PR servers and have it work?

Any luck resolving this? I am having the same issues even after taking the same actions. I can get to random Mumble servers but I time out on PR Mumble servers.