I have a GL-MT1300 working in router mode.
When I bought it, few months ago, I connected it to a TP-Link WiFi extender (AC1750). It was working until yesterday, when I realized the extender is not visible by the router any more (using the scan feature the extender was not found, only if I reset the extender is gets visible but when the extender is configured it gets list again). After a small research I realized that this extender has got an auto mode that allows it to change channel (on both 2.4G and 5G bands) to ensure better wireless performance. So now it is on 104 channel. That channel is not configurable on GL-MT1300 and I believe this is the reason why the WiFi is invisible to GL-MT1300.
Firmware is 3.201 (upgraded on 2/4/2021).
Any solution to the issue?