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Comcast bricked my CM2050v
I have a Netgear CM2050v that I have been using since November 2021 without any problem. Occasionally Comcast will have a service outage, due to an issue or saying there is "planned maintenance". Today I got a message saying services may interrupt due to a service upgrade. About 10:30am all our service (Cable TV, Internet and Voice) went out for about 40 minutes. After the cable TV came back on, I checked the CM2050v and the MultiGig light was flashing very fast (no other lights on). I pulled the power for a few minutes and as soon as I plug the power back in, the power LED flashes red 1 time very quick, and then the MultiGig light starts flashing fast again. Tried the Reset button and isn't rebooting it (like it use to). I've never had this problem before. I had to reconnect my older Arris TM822G eMTA modem and use the Xfinity app to get it added on my account, and it's working fine (but at 1/5th the speed).
So in my opinion, it appears that whatever Comcast did in the area fried my modem. Could it of been a downstream voltage surge in the line or something else. But now I'm going to have to spend $360 for a new CM2050V (as it was $240 in 2021 when I originally bought it).
Glad the replacement worked.
Ya, It will be up to the ISP to support model modems on there mid split or higher speed tiers. All up them.
Probably not. I'll check and see if I can find out what happened.
Please mark your thread as solved so others will know.
Enjoy.
14 Replies
Try this, since you have the CM disconnected from the ISP now. Try a 30-30-30 reset on the modem. Need a stopwatch to do this. With the modem plugged in and powered on, depress the reset button for 30 seconds. This button is usually a tiny dot recessed into the back of the router. You may need a jeweler's screwdriver or a bent paperclip to access it.
While still holding down the button, unplug the router from its power source for another 30 seconds.
With the reset button still held down, turn the power back on and hold for another 30 seconds.After releasing, let the modem process for about 1 minute. Have one ethernet connected PC.
See if you can access the modems web page at 192.168.100.1 in a web browser.
If you can't, then the modem is bad.
I left it unplugged all night. Today I tried this 30 30 30 reset and it didn't do anything. Tried it a few hours later and nothing. All the modem does is flast flash the MultiGig light that is in the center
I wouldn't buy the 2050v unless you absolutely needed the phone line. It isn't approved for xfinity's next gens speeds (and that's probably what the maintenance was). If you don't need the phone line, the CM3000 would hit the next gen speeds.
Not sure if the cm2050v will get approved because even the forums for xfinity have conflicting info.
Any updates on this?
FAUguy wrote:
I have a Netgear CM2050v that I have been using since November 2021 without any problem. Occasionally Comcast will have a service outage, due to an issue or saying there is "planned maintenance". Today I got a message saying services may interrupt due to a service upgrade. About 10:30am all our service (Cable TV, Internet and Voice) went out for about 40 minutes. After the cable TV came back on, I checked the CM2050v and the MultiGig light was flashing very fast (no other lights on). I pulled the power for a few minutes and as soon as I plug the power back in, the power LED flashes red 1 time very quick, and then the MultiGig light starts flashing fast again. Tried the Reset button and isn't rebooting it (like it use to). I've never had this problem before. I had to reconnect my older Arris TM822G eMTA modem and use the Xfinity app to get it added on my account, and it's working fine (but at 1/5th the speed).
So in my opinion, it appears that whatever Comcast did in the area fried my modem. Could it of been a downstream voltage surge in the line or something else. But now I'm going to have to spend $360 for a new CM2050V (as it was $240 in 2021 when I originally bought it).
I've been using the replacement CM2050v for the past few weeks without any problem.
Today the modem rebooted a couple times, and when I logged into the Admin page it shows there was a firmware update to V10.01.03. I looked on the Cable Diagnostic screen, and it looks a little different (like the v9 from a few years ago) and now have 1 OFDM Upload channel.
I did a Speed test, and before on the 1Gb plan I would get about 1180Mbps down and 24 up, now I'm getting 1288 down and 45 up. So maybe they are doing this mid-split work in the area as well. Technically the C2050v says it can do a few hundred mbos upload with 2 OFDM D3.1, but Comcast site says that for mid-split they only support the CM2500 and CM3000 (which doesn't come with eMTA voice).
The bad one that I sent back to Netgear, is there a year to know if they are going to test it and what the results were?
Glad the replacement worked.
Ya, It will be up to the ISP to support model modems on there mid split or higher speed tiers. All up them.
Probably not. I'll check and see if I can find out what happened.
Please mark your thread as solved so others will know.
Enjoy.
