Hi. I''ve problem with my archer C6. I have new infrastructure in my house, its optical fiber -> Dasan h665 ->(rj45 cat. 5E)> Archer C6. Dasan works as router, so archer is set as access point.

We starting from reboot all devices, now all used ports are linked to 1000Mbps full duplex, aswell as WAN port. After couple of minutes, sometimes 5 min, sometimes 5 hours, i am experiencing intenret disconnection on all my devices for short time, like 5 sec. And then, my WAN port is linked to 100Mbps full duplex, and all i need is reboot Dasan, and we start from beginning. It's really annoying, and i'm not sure which device is responsible for this.

If anyone have an idea, what can i do, i'll be grateful ;)