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Forum Discussion
CM1150V bandwidth intermittentently drops to below 1 mbps with Xfinity
When I first got this modem, everything was awesome, fast, stable, low latency, and no Intel Puma chipset issues. But now I'm intermittently rebooting the modem up to 12 times a day when speed of my...
Over in one of the Xfinity forum posts, someone pointed out that there might be an upload signal threshold of 48 dBmV on this modem that is perhaps looser with Xfinity branded modems. Does such a limitation exist?
https://forums.xfinity.com/t5/Your-Home-Network/Netgear-CM1150V-Internet-Connectivity/m-p/3376884
This is what my modem looks like when the connection is normal:
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Then when bandwith is nil
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Here is my CM1200 on the UP:
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Though not same model# there similar in nature. The 1200 has 4 WAN ports. Mine also has a attenuator on the back of the coax connector. Tech said there line was running a bit hot so he added it a while back when I upgraded to the 1G service.
I would have the ISP check the line and ask if the power levels are good for this modem.