When attempting to join our server with the latest stable release of AE2 installed (rv2-stable-10) the log shows the following error on the server side:

22.07 10:52:53 [Server] INFO VoiceServer: Accepted new connection.
22.07 10:52:58 [Server] ERROR VoiceServer: Unable to trace connection's IP address.

and then promptly kicks me out with a message in the game that the connection was closed
I play from work sometimes, and the firewall rules here are restrictive, so there's nothing I can do to change the firewall behavior. Why is this even a thing?

I've looked at the config files as well, and can't locate any way to disable this behavior.

Set EnableVoiceServer to false.

I apologize... where? I've looked at both the AE2 cfg as well as server.properties.

I saw this: #321

But still do not see an option for this in any of our config files. I checked my client side as well just to be sure I wasn't missing it entirely. No sign of it?

AE2 is Applied Energistics 2, you want to look in the "mekanism.cfg" file (as this is Mekanism related).

Sigh. I apologize for getting the wires crossed. Thank you for the help.

No worries :)