I have purchased a used router W9970 because it has a USB port. I wanted to use it with mobile data from my phone. According to the manual, it can only be set up via the VDSL port. But it then says yo

For the past four months, my router has suddenly started getting an absurd amount of CRC errors, and I’ve lost almost 80% of my speed. I contacted my ISP, but they completely ignored me for three mont