I looked at the signals from my R7500 with three WiFi analyzers (Homedale, Acrylic, inSSIDer) and
found some strange effects:
country code: R7500 sends no country code on 2.4Ghz, only on 5GHz. Maybe this is the problem with channel 13 not connecting on some devices. Setting region to "Europe" leads to no country code sent. Other routers use "EU" for this.
supported bitrate list (Homedale): The supported bitrate list fits to the wireless settings for region "Europe". For region "China" there are to high bitrates in the list. I did not check "US" region.
max bitrate (Acrylic, inSSIDer): The max bitrate shown in Acrylic fits the wireless settings for 2.4GHz, but not for 5GHz. It stays always at 1733mps. InSSIDer always shows 54mps for all settings.
R7500 firmware is 1.0.0.82, OS is Windows 8.1 x64, Network-Card is ALFA networks AWUS050NH (only a,b,g,n capable).
