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Forum Discussion

4estOC's avatar
4estOC
Guide
Jan 08, 2020

CM1200 to Rax200 WAN aggregation slows down (requires reboot)

I have a CM1200 modem and RAX200 Router with WAN agreggation (2Gig). My internet speeds slow down to 25Mb after approx 24 hours. Rebooting the router fixes the issue for another 24 hours and then the...
michaelkenward's avatar
michaelkenward
Guru - Experienced User
Apr 02, 2020
4estOC wrote:
Netgear needs to update their modem firmware and strongly encourage ISP’s to do the same.

 

The second bit of that is important.

 

Netgear can do as many updates as it likes for cable modems, but it is down to the ISP to roll it out.

 

Users have no control of firmware on cable modems.

Topology's avatar
Topology
Virtuoso
Apr 03, 2020

I noticed that Spectrum and Cox are using V1.02.01 firmware for the CM1200, whereas Xfinity has V1.02.02 deployed (see here). Are forum members with Spectrum, Cox, and Xfinity all experiencing the same decrease in download speeds when WAN Aggregation is enabled?

  • kioteh's avatar
    kioteh
    Guide
    Apr 03, 2020

    I've got Xfinity and just checked the firmware version on my cm1200 and it's V1.02.02 but I still have the slowness issue.

  • 4estOC's avatar
    4estOC
    Guide
    Apr 03, 2020
    I have Xfinity (Comcast) and the latest firmware. The modem still has speed degradation over a 24 hour period. I go from 1,200mbps to 24mbps in a day.