TS was running perfectly fine for like a year. Had multiple people connecting, using it, etc. Then all of a sudden about 1.5 months ago, a small subset of those people could no longer connect at all...would just come back that "the server isn't responding" and timeout.

But I can still connect, as can most of the other users. Out of approximately 30 users, 22 can still use the server just fine. I noticed that the only people that were having problems were on Linksys routers, though I don't know if that has any merit. And it's not consistent either. My brother is one of the ones that can't connect. He did a factory refresh on his router and afterwards could connect fine again. Talked for about an hour with everyone else. Then he says "I'm going to go play pool...be back in a few hours". 3 hours later and no changes to anything whatsoever, and he can't connect again.

Like I said, router manufacturer is about the only thing I can find that is even a remote similarity between the people. OS's are all different, different apps running, tried with and without various firewall/anti-virus software running...I'm just at a dead end with no idea where to go. The Linksys router thing is just a running theory at the moment....not that I've seen anything concrete that would be a problem.

I don't have a Linksys, but do they do automatic firmware updates? Perhaps one of the updates did something for filtering on that port. It kind of makes sense since my brother could connect for a while, but then nothing after a period of time.

I've done quite a bit of searches trying to find other people having this problem. My problem is that I've found several posts that describe exactly what I'm seeing, but no one ever has a solution posted to try. I have gone through the FAQ *several* times in order to find something that I may have missed, but nothing I change seems to matter. For all intents and purposes, it's set up perfectly and working perfectly except for certain people.

The server is hosted in a datacenter and so verified ports were open. They are...which makes sense since most people can still use the server just fine. Just really irritating that I can't pin this down. And, it's hard to troubleshoot as I (and many others) can connect perfectly.

If anyone has experienced anything like this at all, or knows of someone who may be able to help, I'd really appreciate it.