Router redirect problem

Using a speedstream 2524 powerline wireless router -- the problem is when trying to access a website that tries to redirect, the browser on the PC just stops & says done. Using DSL -- when plugging cable modem directly into PC, browser works perfectly & redirects. PC's OS is XP pro w/IE 6 sp1. Connected PC to other networks (friend's house) -- works fine.. Why is this router not allowing redirects on client PC's ???