Black Ops 2 - unable to join games/friends

[r1flyguy1]

Hi all

Having problems linking up with friends and joining games at the moment...

All I can see that 'may' be unusual is a No.1 in a circle to the left of my username in the 'waiting for players' list also,when trying to accept game invites, it keeps kicking me off, saying unable to join session

Any ideas please

Thanks in anticipation

[r1flyguy1]

Anyone??????