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Slow download speed
Hi, all, My Comcast cable internet has been only running at less than one third of the 75Mbps advertised download speed. When I use Zoom chat to work remotely, the incoming audio/video is really bad...
So the uncorrectables are a bit high. If you have any splitters, attenuators, amplifiers in line, remove them. If you still get that many errors, the isp needs to check the line.
And you know your speeds from the cm400 is at least 80mbps download.
Do you have a different device you can test with?
Sorry for the incomplete screen grab. I now am attaching one with uncorrectables, which tend to be 7 to 9 times higher than correctables.
I am using Belkin N600 as the WIFI router. You questions led me to take additional troubleshooting steps. I found that the connection between the Belkin router and Netgear CM400 is a bottleneck. When I connect my MacBook to CM400 directly, the download speed increased from 20 to 80Mbps. The upload speed stays at 5-6Mbps. However, the Zoom video is still blurry and choppy even when the computer is directly connected to the cable modem. The other side has no problem seeing me though.
So the uncorrectables are a bit high. If you have any splitters, attenuators, amplifiers in line, remove them. If you still get that many errors, the isp needs to check the line.
And you know your speeds from the cm400 is at least 80mbps download.
Do you have a different device you can test with?
Thank you for the information! I do not have any splitters, attenuators, or amplifiers. The cable modem is directly connected to the outlet. When I called Comcast a few days ago, they said that they could not see any problem by remote diagnosis and asked me to contact Netgear instead. They probably did not want to consider sending some guy over to check the line signal as the first resort. I also have the same problem of choppy video during Zoom meetings using other devices, such as iPads and iPhones. Also Skype meetings were not much better. Figuring that a good remote working experience requires some investment anyway, I have placed an order for a new modem (CM1000) and a new router. We will see what happens with the new hardware.