@mr6400_user Sending it for repair sounds like a good choice if there is such a service center available in your area. As for replacing the module, I am afraid that there is no further instruction...

@vk3hjq Hi, your point is absolutely right!

@ARNABSAHA Hi, I am aware that only band 4(channel 149-165) Is allowed for 5ghz in Bangladesh. But the normal EU version does not support band 4 due to CE certification. It is suggested that you...

@baconnotbacon I think the internet configuration details, might be incorrect, especially the internet VLAN, like internet VLAN ID 500? (http://kb.webstation.my/docs/tm-unifi-vlan-setting-at-router/)

@LiranETN Thank you and how about the model of the switch and have you tried to turn off the loop detection or prevention?

@Karq Hi, except for the Xiaomi 9t pro, Did other devices have the same issue? Before you use M4, would the same unstable issue happen to the Fritz box 7560? Here are some suggestions： 1. turn off...