umm i need help

hey all i had agreat help b4 so i wanna try again
alright heres my problem.. i use wireless internet main board is 5ft close there is just 4-5 inch wide wall between em but every 2-5 minute my internet goes for 4-7 sec. if your a gamer and having a match you know how annoying it is.. anyway what would cause that and how can i fix that problem cuz i used wireless b4 i was at basement and the main modem was up stairs and it ran perfect :S

 

Just throwing out what comes to mind.
Has the service changed at all since you moved it?
Location is very important for wireless internet to work.
I honestly havnt the slightest idea on how it all plays out but maybe if you move it somewhere else it might work.