I tried to do a downgrade to version Archer C2600_V1_150924 , problems persist but It seems to be a little more stable on band 2.4GHz, powe signal & speed in 2.4Ghz band is very poor ! I know how...

Model : Hardware Version : Firmware Version : ISP : Model : Archer C2600 Hardware Version : Archer C2600 1.0 (1.1) Firmware Version : 1.1.7 Archer C2600(UN)_V1_160902 ISP: FROM ROMANIA...