Visitor
•
12 Messages
After outage 400mps plan very slow
We just had 2 outages in the span of less than a month maybe less than that and with this last outage about 3 days ago I think it was my 400mps plan is anywhere from 312 to 476 with below 360 the norm and most times way below. Have restarted modem more times than I can count as recommended by the app. The “chat” ran tests and says everything - modem, lines and whatever else it checks - looks fine but giving no option to chat with a human. The 312 to 476 is measured to the modem through the app but running speed tests from several speed test sites shows very wild swings from 136mps to 474mps. Doesn’t matter much if it my iPhone or my hardwired computer. When I get a Speedtest of 136mps on iPhone I immediately jump on computer and it is about the same. I understand no plan will be rock solid and never vary but these are huge swings.
I just updated to 1gig plan and modem is supposed to be here Tuesday but I’m doubting it will provide the speed it’s supposed to be.
Any thoughts?
CCJodie
Problem Solver
•
1.3K Messages
1 year ago
@Oldit2 Hi there, thanks for the post. I would like to see how the new modem works with the new speed upgrades. I can check on Wednesday to see how it's going!
2
0
zandor60657
Contributor
•
204 Messages
1 year ago
As long as it's Cat5e or better an old cable should be fine for gigabit ethernet with a length of 8 feet as long as it's in good condition. You should expect to max out at about 950 on a speed tests with gigabit ethernet. Gigabit ether runs at 1,000mbps, but protocol overhead eats some of that and it doesn't show up in a web browser when you run a speed test. Even more gets chewed up on WiFi.
It's common for phones to not keep up with computers. I have a pixel 7 (WiFi 6e) that gets 400 and an iPhone 13 (WiFi6) that manages 320, both on 5GHz since I have WiFi 6 access points so no 6e support. Then my 2019 model WiFi 5 laptop gets 650. The phones have a theoretical max of 1200, while for WiFi 5 computer it's 866 with my gear. I'd focus your testing on the wired computer. WiFi just adds too many variables. I'd get the computer going full speed, then try to figure out what's up with the WiFi... if it's actually bothering you.
Which hardware models are you using? Which model laptop, router, and cable modem?
Unless you have a really ancient computer, malware infestation, or you're using a corporate issued PC with loads of security software on it I'm still thinking this could be a line problem. Routers that are too slow don't usually produce that sort of variability in a speed test when using wired 1Gb ethernet.
Could you post your signal stats and error log? There's some info on how to do it here: https://forums.xfinity.com/conversations/your-home-network/internet-troubleshooting-tips/602dae4ac5375f08cde52ea0
When posting be sure to redact any MAC addresses (CM-MAC, etc.) and routable IP addresses. The forum considers them personal private information and will block your post if you don't. Usually you'll run into these in the error log. Also, it works best to copy and paste rather than taking screen shots. The forum does quite well with copied and pasted tables and they are usually more readable than screen shots.
0