I know this won't help you, but at least you have some comfort in knowing it's not just you. It's likely everyone who has Cox internet.
I've been suffering from the same absolutely horrible internet connectivity issues as well for nearly the past 2 weeks. Every single night straight for the past week it's been like that here in Cleveland Ohio area.
I normally don't run speed tests unless I see extreme buffering on streaming or inability to use the service to connect up to work. When I can feel and experience the issues is when I run the speedtests to check if it's really an issue. I'm on Gigablast tier. The cable modem signal levels have been fine in my situation.
I normally get sustained 940 mbit/s download and 35 mbit/s upload, but tonight has been as pathetic as yours. A rather anemic 61 download and 0.31 upload.
As you can see from the previously attached screenshot, the speeds were 940 mbit and 35 mbit before the Cox infrastructure took an unexplained dive in quality.
Everything is hard wired gigabit connections, PC to Router to Cable Modem. I've had no issues for years on end until around 1.5 - 2 weeks ago. The modem signal levels are fine.
Tried that. Same random issues at night even when bypassing the ER-4 hardwired router. The issue is not in my equipment or even the cablemodem but in Cox's infrastructure.
The Cox account center now has this message displayed 24/7, which reinforces what many have said:
"Increased internet traffic - During certain times of the day, increased network activity in your area may impact service performance. We know that’s frustrating. Rest assured, our engineers are working to fix this issue.
Estimated Time to Repair: 05/23/2022 03:01 AM"
