The network cable that was pulled last year has suddenly been used very poorly in the last two months. I often drop the connection when watching videos, and it is not even as good as my own 4G network. Sometimes I can turn on a picture for a long time. This makes my experience very bad
Can you tell me the reason for this? I use a regular wireless network.

So is the problem with the LAN connection, or your wifi?
Which MT product is the centre of this issue??