Constant T3 Timeouts and Packet Loss

Hello, since March of 2020, we have been experiencing terrible internet drops an packet loss. Everything will be working fine and then our internet will totally drop out for around 45 seconds, then come back. We thought it was our modem, so Xfinity brought us a new one. That never resolved the issue so they came and picked the modem up and we bought our own. After installing the new modem, we STILL were experiencing the same issues. Eventually, a tech came out to re-run a new line. He claimed everything looked good and there wasn't any issues, but he replaced the line anyways. This solved our issue for about a month and now it has started to happen again. I have attatched a few screen shots for anyone who needs my system's logs. Any help would be greatly appreciated. If this isn't resolved soon, we are going to switch ISPs.