@RedIndianRobin If you had how to install the firmware version (US) would solve the problem, more as the European version has different hardware does not support.

I have the American and European model, in the American has more channels in the 5G band, all updated, but the European always gave problem on the 2.4G network

Young the problem of this equipment is hardware and not software, the model Archer c6 v2 (US) has better hardware, no use updating firmware, because the European version has lower hardware, in the...

@PedroYan Hi friend, the TP-Link Archer C6 v2 (EN) in version 1.2.1 presents this problem, already in version 1.3.0 the network 2.4ghz and normalized, plus the 5ghz network presents packet loss...

@Kevin_Z How can I replace me Archer c6 version (EN) with one of the version (US) because my equipment is under warranty?

There is no way to install the firmware version (US) in the version (EN), because the hardware and different, it seems that hardware version (US) is better and has support for band 4 in 5ghz and all...