Hi @antondd 

Thanks for posting in our business forum.

antondd wrote

Hi!

Just bought a ER706W and setup was easy. I use the WAN2, but after a few hours running (4-6h), I get error messages "WAN down)" and looses internet connection (wifi still working). Rebooting did not help. Switching back to the provider's router (Eero 6), no problem with internet connection.

I had the same issue both in standalone mode and with a software controller, all with the latest SW / FW versions I get through the controller.

When it was happening the first time in standalone mode, it was WAN2 switching on/off quite often, and when a connection was there, it was slow. With controller it dropped completely.

 

With the other router, I used the same Ethernet cable from the modem, and no problem in weeks. I will still try a different cable, just to be sure. The ER706W is currently placed horizontally, no idea if in this position the cable sits not perfectly and looses connection, or is it a software or hardware issue? Anything I should try, beside the cable?

If that's the case, the highlighted part, then that's your ISP issue. Or the modem.

Contact either one to ask what you should do with a new router.

Generic solution for this is to reboot the modem but requires a 10-minute downtime or reset the modem.

Everything happens from a new router to an old mode, this happens. They store the MAC address or bind the ARP so that no new devices are allowed before you flush it. For the sake of security in their eyes. 

Hi @antondd 

Thanks for posting in our business forum.

antondd wrote

And still the same, every 1-2 days WAN is down and only reboot helps. Nothing blocked from ISP.

I updated already to the latest controller version.

Anything else I should try, or handle this as a warranty return?

It may not be your ISP blocking something but they definitely have something set differently on their server.

https://community.tp-link.com/en/business/forum/topic/666952

https://community.tp-link.com/en/business/forum/topic/703102

I recall another case from our community that mentioned that this is a problem with the ISP.

Luckily, found it.

https://community.tp-link.com/en/business/forum/topic/708762

antondd wrote

Thanks, I will contact the ISP as well, let's see. Setup is Dynamic IP. I had for a while my old Asus wifi router running, until that died, and didn't see those WAN drops I see now (in the end it had complete drops, including the admin panel not accessible, so likely a different issue, and it was about 8 yrs old). Since then I used for a few months the ISP's eero, and try to get rid of that one now.

What do you mean by this? Happened to ASUS as well? If so, that indeed seems to be a problem with the ISP.