verdictx

@ keezel: I tried an integrated gigabit port first, then bought a PCI wireless network card. Same result of 2.1 mps almost exactly each time it's tested. Full bars connection; no other users or computers were online, and router is WEP encoded, so no leechers either. Cables are Cat 5; nothing I can see on the cable itself to indicate 5e or not.

@JohnWill: I'll try the optimizer tonight. (btw, just signed up at tech support guy website and realized you were the admin there too!)

Thanks for continued ideas and help!