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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...

Tutor

Jan 16, 2020

Same problem here. Disable link agg and speeds return to normal with consistency.
It’s apparently going to be an issue until the next firmware upgrade.

branchbiker
Apprentice
Feb 09, 2020
I have a RAX80 with the CM1200. Same issue, it slows down to 30Mbps after sometime and have ot reboot. In addition when link aggregation is setup, xfinity speed tester reports lower speeds than when it is disabled.
- Topology
  Virtuoso
  Feb 09, 2020
  I too am seeing a decrease in download speeds when WAN Aggregation is enabled between a RAX120 router (1.0.1.114) and a CM1200 modem (1.02.02) with 1000Mbps service from Xfinity, as measured by the Internet Speed test on the Nighthawk App (2.4.19.1).
  - behshad
    Tutor
    Sep 02, 2020
    Checkout the following link for your question:
    
    https://community.netgear.com/t5/Nighthawk-Routers-with-WiFi-6-AX/RAX120-WAN-Port-Aggregation-To-CM1200/m-p/1760418#M1551
    
    I have my port aggregation turned off on CM1200 and just using the Internet port on RAX120. Just didn't want any link aggregation while troubleshooting the Cm1200 modem connectivity issue.
- Christian_R
  NETGEAR Employee Retired
  Feb 12, 2020
  Hello,
  
  For those experiencing issues with WAN aggregation and is interested in helping us look into this further, please send me a message. Please provide me with your contact information such as name, email, phone, and contact time along with your serial number.
  
  Thanks,
  
  Christian
  - plemans
    Guru - Experienced User
    Feb 12, 2020
    I've got the RAX200 but not the CM1200 or I'd help out.
    Good luck! Christian_R