I was unable to downgrade, it just says this is not correct firmware, which is incorrect. So far I've solved my weird internet problems by disabling ipv6. However, the quick setup still keeps popping...

uutommi, thank you for your reply. Yes, I've tried resetting the router to factory default. My Archer C9 has been acting very strange since the latest firmware. My previous firmware was Archer...

Model : Archer c9 Hardware Version : V3 Firmware Version : V3 170111 ISP : Hello everyone. I have a TP-Link Archer C9 V3 unit that is a Japanese model. Everything has been extremely stable until I...