It's been a week and the speed has not dropped back to slower levels at all. I'm convinced the latest firmware does solve the problem.

Thanks for the response. I did the firmware update and (knock on wood!) the speed has held up since, but it's not been that long. I will post again in a few days.

Thanks!

Region : UnitedStates Model : TL-R600VPN Hardware Version : Not Clear Firmware Version : 1.2.1 Build 130831 Rel.63039n ISP : Comcast So, I upgraded my TP-R600VPN firmware from version...

I've recently been upgraded by Comcast to 105/20 from 50/10, and have the same issue. Every day at some point my speed drops to the older, slower speed, and the only remedy is to reboot my TP...