First of all Cdzo, there's no need to be so unhelpful, and if anything a bit rude too.. I can totally understand this persons problem and having suffered the same issue myself I can say that I've done a bit of reading up before coming here to consult with the experts. This is a place for people to help each other out after all.
In regards to this problem, if it helps you help us cdzo, I am fully connected to my wifi router and have full access to the internet, other app stores etc. it just appears that the official Android market keeps saying "no connection" even though we are fully connected.
I have tried restarts, factory resets and am running the totally unmodified honeycomb Dell ROM.
Hope this shines a bit more light on our issues