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New CM1200 modem download speed capped at 100Mpbs
Last Sunday (10/17/21) I replaced my Surfboard SB8200 modem with a Netgear CM1200. I had been using the SB8200 since early 2017 when I upgraded my Cox Internet service to 500Mpbs download. The reason...
The best option was to use the Arris SB8200 and it works flawlessly. The CM1200 was actually cheaper since I am retired from the military and use the military exchange (retail sales without sales tax) aboard the military base. So the CM1200 was returned and I am using a new SB8200 and download speeds are a consitent 570Mpbs and the light on the front of the SB8200 remains a constant blue color instead of green. I really wanted the CM1200 to work out.
did you try replacing the cable? I've seen sketchy cables have issues and result in the 10/100mbps connection.
I replaced the CAT 6 cable with a new one and even tried another new CAT 6 cable ( I have various diiferent new CAT 6 cables for other projects) and the issue was still there. I also removed my Router (Asus GT-AX1100) from the equation and connected the modem directly to my PC and the issue was still there. Intresting enough the SB8200 is displaying a steady blue on the front panel indicating it is in 3.1 mode and all tested download speeds are in excess of 500Mpbs.
Do you have a screen snip of the cable connections page and the event logs?
I've seen ISP's assign different frequencies at times which is why sometimes a reset/reboot/ISP reboot can fix issues for a bit. And then later it goes back to the frequency that is having issues.
The best option was to use the Arris SB8200 and it works flawlessly. The CM1200 was actually cheaper since I am retired from the military and use the military exchange (retail sales without sales tax) aboard the military base. So the CM1200 was returned and I am using a new SB8200 and download speeds are a consitent 570Mpbs and the light on the front of the SB8200 remains a constant blue color instead of green. I really wanted the CM1200 to work out.
Next time, would have been good to see a screen capture of the Connections status page and Event logs to help better determine what may have been happening. Glad you found something else.
Enjoy.
