Linksys wireless WTR54G

Very recently I purchased this model BUT after reading the various forums with regard to the download problem I was having( it reduced it down to less 500 from 3500, my upload stayed the same 500). Tried the various suggestions that the forums( security setting WPA2 mixed setting) offered but in the end I exchanged it for a BEFSR41 model and I was back to normal. Tried to be proactive when one day I go wireless but in the interim WIRED for now hehe.
Anybody else have any experinces along these lines???????????