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soumeng's avatar
soumeng
Initiate
Dec 11, 2021

Monitor modem

Hi,
I have Comcast as ISP, CM1200 as modem. And I used to have Eero 6 (1 router and 1 extender) which I have replaced with Netgear AX1800 (2 satellite and 1 modem).

For last 2 weeks, I was facing poor connection. I followed up with Xfinity and they claimed everything is fine at their end and since I don't use any their device, they can't run any diagnosis. So I borrowed a device from them for a month on rent. Disconnected my CM1200, connected Eero to Xfinity device through Ethernet, created 2 different WiFi - one from Xfinity and one from Eero so that I can measure speed on each network and accordingly follow up with either Xfinity or Eero. It turned out the issue was with Eero this time (possibly their last firmware update which aligns with my timeline impacted 5G range) and I replaced it with AX1800 through protection plan.

Now my question is there any app to perform diagnosis on modem cm1200? Suppose, there's no issue detected with Eero in my case and with Xfinity device, everything is fine then CM1200 would have been the culprit. How do I monitor that to confirm?

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