Hello everybody

Okay im having problems. Had internet for years, no problems. On a PC... Couple weeks ago we had a laptop, and we hooked it up via a Wireless connection.... about a week ago we started to have problems on the PC

Basically these things have happened, ive tried a couple additional things to see what happens thats why its random....
MSN Messenger - Signs me out coz ive been disconnected. The person i chat to types messages that just dont appear to me, same with me to them
Yahoo
Yahoo Messenger - After a couple mins says my connection was lost, again, messages are sent that just dont go through
Yahoo Chat - Cant even get onto this
Video sites like Youtube/Dailymotion - Loads like 20% of the video and then stops!?!?

So somethings going on. With the connection it would seem, yet the connection status remains in tact, ive trouble shooted just about everything it all comes up fine no problems.

I literally JUST went onto yahoo messenger, and left my local area connection status up, which shows you how long u have been online....

My yahoo lost its connection and nothing showed up on the local area connection thing

Im at a lost cause! I dont understand it. Would really appreciate any input, thanks in advance! HELP! lol