Tony Seaford wrote How did you test the speed? Can you reset ER5120 to factory defaults and reconfigure it to work with your new modem? Later, connect just one computer to ER5120 and test the speed...

Region : UnitedStates Model : TL-ER5120 Hardware Version : V1 Firmware Version : 1.0.6 Build 20130716 Rel.45532 ISP : TWC I have an ER5120 running the latest firmware. Until recently I was using a...

Was this ever resolved? I'm having a similar problem with my ER5120. I was regularly getting my max speeds from TWC (50/5) then I upgraded my plan and modem to 200/20. Now, I'm able to get full 20...