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Forum Discussion
Pokemaniac
Jul 12, 2019Aspirant
CM1200 slows down after 24-48 hours of uptime when using link aggregation
If I hook up my CM1200 to my router (an Asus RT-AX88U) in Link Aggregation mode, it seems to be consistenly slow down to only around 66-ish% of the full connection speed after somewhere between 24 an...
Skeeterslint667
Jul 20, 2019Star
Pokemaniac wrote:If I hook up my CM1200 to my router (an Asus RT-AX88U) in Link Aggregation mode, it seems to be consistenly slow down to only around 66-ish% of the full connection speed after somewhere between 24 and 48 hours of uptime. The only thing which seems to fix this is rebooting the CM1200. Additionally, I've had it running for at least a week now with Link Aggregation disabled, and I'm not seeing any slowdown, so it would appear that Link Aggregation is related to the problem.
The firmware of the CM1200 shows up as V1.01.02, for reference.
I have a CM1150v on firmware 2.02.04 (which is the lastest Comcast just pushed it recently in the past week) and when I turn on LAG my connection will slow down within 24 hours, it did the same on the previous firmware 2.02.03. So there is something definitely not right in the firmware that is causing this to happen and this is the first post I have seen on the Netgear forum that talks about this issue. My ISP is Comcast and my speed tier is their gigabyte plan. I have never had it last longer then 24 hours before the speed degrades.Also i might add that my CM1150v is a beta unit that I was sent in the beta test for this device on Comcast.
YoungSpicket
Jul 21, 2019Star
I have the same thing happen on this modem as well as my Motorola Mb8600 so it’s definitely a Comcast issue. After 48 hours or so speeds drop to a max of about 650mbps with LACP enabled.
- Skeeterslint667Jul 21, 2019Star
YoungSpicket wrote:
I have the same thing happen on this modem as well as my Motorola Mb8600 so it’s definitely a Comcast issue. After 48 hours or so speeds drop to a max of about 650mbps with LACP enabled.Mine drop lower then that, my download ends up well below 100Mbps typically down to about 20 or 30. First I have seen on any forum about other modems having the same problem.