Hi there,

I noticed RE300 is missing on MR600 OneMesh settings page. At the same time, RE300 shows it is connected to the mesh network. (See pic.)

It was there but disappeared later (maybe after some configuration changed).

The network setup is like this. I have optical network coming to my apartment. On the provider's router, I disabled DHCP, Firewall, DNS, and WIFI. Enabled static routing of all traffic to MR600. I must leave it as this until I switch to proper ONT if the provider allows it. Then MR600 connects to it and works like a main router. I do not use it for 4G now, if that matters. Then there is RE300. There is also a pi-hole on RaspberryPI acting as a DNS proxy. And everything seems to be working OK. RE300 is present in the list of connected clients and is working OK. All settings from the main router are read by it properly as well.

Firmware is the latest on both devices. 

Any idea what could cause the main router not to see an extender connected to its mesh network?

Thanks!