Multiplayer to Singleplayer issue

Hi guys, I’ve been having a slight problem when going from Multiplayer to Singleplayer. Whenever play on a server, leave the server, then try to play singleplayer on any map, while loading it says “Establishing connection to server…” even though there is no server to connect to! This results in it just sitting there and I have to ctrl+alt+del out of Garry’s Mod. Help?

Wait a bit longer and it’ll load