Repeated Drops, even with new modem and upgrades speeds

Hi, We have kids doing school from home and in the last couple weeks our internet was dropping frequently.  I recently upgrade speeds and installed a new Motorola MB8600 today.

Twice today we've gotten kicked off. Once while hosting a business skype call.

I went into my logs and I got:

sync timing synchronization failure - failed to acquire qam/qpsk symbol timing