Plutonium

hindercanrun i have another question me and my friend were trying to play a private and when i double click on his name from (f10) nothing happen but if one of us join a server it will say playing singlplayer T4 and i can join him why isn't working on a private match

Resxt ok i was thinking there is some problem going on (i host on same pc i play on)

I search in net for a fix but didn't find any thing any help will be good