MDA Wi-Fi Problem Please Help

[ioevanc]

I recently got the Tmobile MDA unlocked to work on a Cingular network. Everything works great and I love this phone. There is one problem that is really annoying and I can't seem to find a good solution to it. Problem is with wi-fi, as it doesnt always want to connect to wireless networks, mainly it cannot get an IP address from a given network. I've tried multiple wireless networks, including the one at my home and work. It does connect once in a while and I am able to brows the web etc. But most of the time, it is having problems obtaining an ip address. I had WI-FI companion installed and also a Hitchhiker. Those programs really do make the connection process easier and faster, however the core problem with the phone remains the same. I've read multiple forum posts, registry hacks for emabling g mode etc...In general, I see that a lot of people are having similar problems with it, although I could not find a reasonable explanation of why is this device having such annoying wi-fi problems, nobody seems to know the exact answer or solution to this problem. Is there some manufacturing defect, ROM has an error ? Does anybody know what is the issue with this device ?

Thanks