Just got rid of my last (3 in total) Archer C6. Fully refunded by the local reseller. Cheers guys!

@Bananapantsu Well, I sent it to the seller's service with an explanation of the issue and letting them know the problem. Since the product cannot be repaired, the only outcome is a refund.

A quick update from me... Just solved 2/3 of my problem - returned to seller 2 of my Archers C6. The 3rd one will be returned as well once I get my other house. Good luck in waiting for the stable...

@dIaBoLyK Which one? What is your stable config? Share with us, please.

@Kevin_Z Yes but the problem is not just with my C6... just the opposite - many users had already reported the same... months ago! The router really behaves strangely - sometimes is stable for few...

We all need is: 1. Either TP-Link admits the issue with the router is hardware related, cannot be fixed and we all can get a refund from the retailers 2. Or a stable firmware is released ASAP! Really...