Huge problem. so, When i pull up the server list in gmod, nothing shows up. now, before you click back thinking im a noob, i refresh the server list, wait about 3 minutes and nothing shows up! I then go into the console and see red text saying cannot load maplist.txt. This may mean nothing but i dont think so. My internet seems to be working fine as well. HELP!!
I can properly assure you that maplist.txt has no relevancy to your problem at all.
At any rate, it may help to ensure that your firewall isn’t blocking any occurrence of hl2.exe.
Disable the Quick List and try again.