MDD timeouts, download speeds under 1mbps, upload speed higher than download
My connection has been rock solid at roughly 150mbps down and 20mbps up until this week. Since October 2, my download speed will randomly drop down to under 1mbps for hours at a time-- up to 18 hours. My upload speed will drop to 5 or 10 mbps, but it's consistently higher than my download speeds during these periods. I've had two tech visits that haven't really resulting in fixing anything, but I don't fault them at all. They haven't found any issues with my modem or wiring, and of course they're showing up to diagnose during periods where my speeds are normal. The second tech mentioned a failed CTMS(?) server upgrade on 10/02 but that it had been rectified. The event log of my MB8600 has tons of MDD message timeout entries, as well as T3 timeouts.
I'm at the point of pulling my hair out because when I call the 800 support number, the phone tech will tell me that everything looks good from their end, but that doesn't change the fact that my download speeds are still below dialup speeds and there's no way to predict if I'm be at turtle speed when the onsite tech arrives.