internet diagnosticas

[StructureK]

I am wondering how I can get to the root of a internet lag problem. Right now my internet seems to be going much slower than normal, and poker rooms are going in and out of connectivity (while websites and everything else load fine)... Im wondering how I can find the root of this problem and what steps I should take..

Is it my router, wireless connection, bandwith being stolen? Is it my service provider, the poker site, or a worldwide slowdown?

I have found some bandwith test at cnet.com, but Im really not sure what the results mean, or if this is even an appropriate test to conduct.

any help/tips would be appreciated.

thanks