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New CM205V Interferes with TV Signal
When a CM2050V is connected to a three-way coax splitter (the modem, and two TVs to Xfinity Voice/Data/Cable television service, it disrupts the signal to the two tvs. Disconnect it, and the TVs are...
Way too many correctable/uncorrectable errors for a 24 hour period of time.
DOCSIS 3.1 is backward compatible with DOCSIS 3.0. I do not think DOCSIS 3.1 is backward compatible with DOCSIS 2.0. If you are looking at DOCSIS 2.0 hardware, you want to check the coax type to ensure it is correct for the current DOCSIS 3.1 connections (RG6).
What were the upload/download throughputs with your new splitters in place?
You might find some ideas in chapter 3 of this reference: https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
Look on the labels and make sure your splitters are capable of passing signals up to 1 GHz. Many older splitters cut off at 850 MHz. If the labels are gone, invest in some new splitters. Buy two with dual output. Connect the line in to one splitter with a connection out to your your modem. The second line out should go to your second splitter with outputs to the TVs.
I do not think there is a CM3050V, should be CM2050V. Are you connected to Xfinity?
Current splitter up to 900 mhz