i can neva get in to a local lobby

[horsham rc]

my mate lives round the road and we both have the 3.0r update but cant get in the same lobby we have tried several times over the last 3 months with no joy. we both have ports open, could some one help out here? pm me a phone number or somthink rather than xplaning in a load of pc jibber i will simply not understand... thanks for any help here.