Hi @Kevin_Z , as you can see there is no specification for US or EU, I know that it was using the US firmware (I installed it), then I installed the EU firmware and then some of my devices stopped...

could you please email me the fix as well?, thanks! Kevin_Z wrote Hi, I emailed you the instruction to update the firmware, please notice your inbox. Any updates, please let me know. Good day....

Same issue, I have an archer c7 3.15.3 Build 180305 Rel.51282n (EU firmware), I want to instal US firmware a lots of my devices don't recognize the 5GHz network. Please help me!