I am in the Northwest Indiana/Chicago area. For the past four evenings, I have had extremely slow connection speeds of around .25 Mbps. However, I got up early to run a speed test this morning. It was a lightening fast 24 Mbps. It appears as if Comcast can't handle peak traffic times. Coincidentally, the rates just went up $7 a month. Rates up and service down.
As I work at home and need realiable connection speeds, I am going to have to investigate alternatives.
I experience the same thing. I live in San Jose, CA, and a new customer. Daytime Internet speeds are very good (20-30Mbs). At night I cannot get the entry page at news.google.com to load! Last night http://speedtest.net did not load; http://2wire.com gave me 300Kbs download; that is worst than a 56KB phone modem I used 25 years ago! Just not acceptable.
I would recommend bypassing your router and testing the speeds again just to rule out any kind of equipment issue. It also rules out of there are any offenders on your wireless network if it is not secured, kids watching netflix etc. Bypass the router, and see how your internet works that way.
If your issues persist, you may be looking at signal issues or node congestion.
I have a router and a Vonage box. I unplugged the line going from the Linksys router to the computer and plugged the cord (sorry, don't know technical names for them) connecting the router to the modem straight into the computer, i lost the internet connection completely. When I restored the set up to its original state, I began to receive very, very fast speeds once again. So something reset itself.
I just don't understand why it doesn't stay consistent.
There are two additional signal stats which can't be read at the modem level. They can only be read from their end by them polling the CMTS (Cable Modem Termination System) at the local headend facility.
They are the 'Upstream Receive Power Level' and the 'Upstream uSNR' (upstream Signal To Noise Ratio). Both of these are as equally important in diagnosing connectivity issues as are the modem's stats.
You can call in and ask what these figures are. The Upstream Receive Power Level should fall within the range of -10dB to +10dB with 0dB being in the middle and perfect.
The Upstream SNR should be least 30dB, and the higher it is the better. You could have a noise ingress issue in the upstream channel.
Thumper i sent you a private message this morning. the first thing i noticed is that your modem is end of life, and your modem has also had a number of resets. Modem Resets141 and that figure is just from this morning, your upstream and downstream signal levels have been fluctuating pretty badly over the last three days that i could see. it appears that you really need a tech out to swap the modem and find out the causes for the fluctuations.
You can also purchase a cable modem at retail and save the monthly fee if you like. Just be advised that if a line signal / connection quality issue exists it will still be there with a different modem.