Hello Guys,

  I've bought an Archer C5 v4 recently and set it up as an Access Point.

Since I have my ISP router doing the routing and DHCP magic, I just connected them LAN to LAN and set a fix IP in the Archer, which I made sure is excluded from the DHCP range of the ISP router, so no conflict could occur. (Even I tried setting Dynamic IP in the Archer and assigning a fix IP based on MAC address in the ISP router, so I tried some scenarios. ISP assigned the IP as expected.)

The result is the following: I can connect to the Archer via Wifi, if I run ipconfig on my deskop, it looks nice. The gateway is my ISP router, also that gave me an IP address. Both the ISP, the Archer and my deskop are in the same subnet. Internet access works.

However, after 5 or 10 mins the Archer drops the Internet connection. I checked that there is still Internet in the ISP. After another few seconds or minutes the Archer even drops my Wifi connection (not always, but often). Maybe it got frozen and rebooted?

Anyway, after rebooting the Archer, it works again for another 5-10 mins.

It also happened that I was connected via cable to the Archer and suddenly it disappeared. (Windows told me I have no Ethernet connection anymore.)
I was just browsing it's admin interface in Chrome and suddenly it's gone (I was not modifying or saving something, like static IP, I was just browsing around.)
I tried also with latest firmware.

I also tried in router mode. Tried plugging the patch from the ISP into the WAN port of the Archer.

I also tried with another ISP which is from another company. 
Same results.

Very annoying. Any idea?

Thanks,

Mihály