Model : Hardware Version : Not Clear Firmware Version : ISP : Lately, TP Link made a few firmware for Archer C9 V1. All of them had problem. Last one, Archer_C9(UN)_V1_160517, is no exception. I...

SOLUTION, as mention above, downgrade to Archer C9_V1_150507. I downgraded to this firmware and have absolutely no problem since a few months.

I had multiple issues with this firmware (Firmeware 4.0.0 Build 20150916). The only way I could resolve the problem was to downgrade to "Archer C9_V1_150507".

Thanks, All devices failed to connect to internet, including Roku, cellphones... The router seemed connected to internet( blue internet light was on, and not red). I had to hard reset to downgrade....

Model : Archer C9 Hardware Version : V1 Firmware Version : 150916 ISP : Archer C9_V1_150916 I upgraded to new firmware released today. Devices fail to connect to internet. Exactly the same problem as...

Model : Archer C9 Hardware Version : V1 Firmware Version : 150908 beta ISP : Archer_C9_V1_150908_beta Beta firmware of Archer is out. Hopefully, it could fix the problem. Remember to: Set to factory...