Server IP Cant Resolve?

[Llamalover]

Now some of you are probably thinking "Why has the kid posted a minecraft problem on here?" Well the  thing is i t isn't a MC Problem (I think) Basically i JUST Got forge for 1.8 and i got NEI for it and i load it up... All good except 1 thing The server i play the most wont resolve host-name so im like "uahdpi9asajdbias Great... well ill go get it again"... Still doesn't work  I try regular MC and it works i go back to forge and it cant resolve host-name i tried every thing i asked the owner about it he hasn't a clue i ask Friends the don't know... I'm at a stalemate and don't know what to do it seems to be only that server but its only that server not working with forge I asked my freind Chad we both have ALL And i Mean ALL the same stting but he can still join with forge please some one HELP!!!! :'(

[LexManos]

Logs, also we dont touch DNS so that would probably be a anti-virus or firewall issue.