Both Gmod and TF2 only show me like 10 servers, yet games like tabletop simulator shows all server available, so i know there is a problem with source games.
I tried lowering max ping and clear download cache, but nothing happens.
31 Answer
All source games use the same algorythm of discovering servers:
- the game asks valve's masterserver for a server list, receiving a list of IP addresses
the game now sends an A2S_INFO UDP packet to each server in a list, at a maximum rate of 250-5000 pings per minute.
every servers responds with an UDP response packet containing some useful information
Why this happens
Most likely, your internet connection have issues with UDP packets: packet loss, extreme delaying, restrictive filter, etc etc. - packets between you and internet servers lost.. somehow.
What you can do
1. Decrease server query rate
Rate is guessed by steam client, but it's also configurable in
Settings -> In-game -> In-Game Server browser: Max pings / minute2. Hit refresh servers button again
With my 3G connection it takes multiple clicks, and from 5 to 30 seconds before servers in TF2 client start to appear.
3. Troubleshoot network issues
Anti-virus, firewall or other software may interfere, try disabling it.
Bad hardware (notably your router) can interfere - try connecting to internet directly (if your pc connected to isp through router)
If none helps, you can call your ISP's customer support.
