@Wasilewskiii First make sure that you're with the latest FW release on RE330. Apparently the problem is different. I can see that you are in 192.168.1.0/24 network, right ? Your main router...

@Hosein_1938 A FW release for one HW version is not compatible with other HW versions: " Please verify the hardware version of your device for the firmware version. Wrong firmware upgrade may damage...

@ilConsigliere Deco mesh in not compatible with Easymesh - details. In this case RE200 will work as a regular range extender.

@dis69 Check this solution.

@Drdiamond That's exactly the problem with this router model. Its FW is not officially supported by TP-Link. Its FW is customized for a particular ISPs.

@C8JRA AX55 supports Easymesh. If your RE305 is HW v4 it should support Easymesh and connect with AX55 seamlessly. Here's a list of Easymesh supported range extenders. Range extenders (RE) usually...