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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
Does this do any good? Thanks again. By the way, the data side was working perfectly. But the TV screens were crazy, especially during a speed test. So, my guess would be that its data signal mixing with video signal somehow, but my knowledge of networking dates back to the days of two telephone couplers - one for send and one for receive.
Wed May 21 15:07:10 2025 Notice (6) CM-STATUS message sent. Event Type Code: 20; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;
Wed May 21 15:03:48 2025 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.
Wed May 21 15:03:07 2025 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.
Wed May 21 15:02:49 2025 Notice (6) DS profile assignment change. DS Chan ID: 33; Previous Profile: ; New Profile: 1 2 3.;
Wed May 21 15:02:49 2025 Notice (6) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;
Wed May 21 15:01:31 2025 Notice (6) US profile assignment change. US Chan ID: 41; Previous Profile: 11 13; New Profile: 10 13.;
Wed May 21 15:00:31 2025 Notice (6) US profile assignment change. US Chan ID: 41; Previous Profile: 10 13; New Profile: 11 13.;
Wed May 21 14:51:01 2025 Notice (6) US profile assignment change. US Chan ID: 41; Previous Profile: 11 13; New Profile: 10 13
Wed May 21 14:50:31 2025 Notice (6) US profile assignment change. US Chan ID: 41; Previous Profile: 10 13; New Profile: 11 13.;
Wed May 21 14:45:41 2025 Notice (6) CM-STATUS message sent. Event Type Code: 20; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;
Wed May 21 14:45:27 2025 Warning (5) Dynamic Range Window violation
Wed May 21 14:45:27 2025 Warning (5) RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-
Wed May 21 14:42:49 2025 Notice (6) CM-STATUS message sent. Event Type Code: 20; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID:
Wed May 21 14:42:46 2025 Notice (6) US profile assignment change. US Chan ID: 41; Previous Profile: 11 13; New Profile:
Wed May 21 14:41:46 2025 Notice (6) US profile assignment change. US Chan ID: 41; Previous Profile: 12 13; New Profile: 11 1
Wed May 21 14:41:29 2025 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1
Wed May 21 14:41:27 2025 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID:
Wed May 21 14:41:07 2025 Notice (6) DS profile assignment change. DS Chan ID: 33; Previous Profile: ; New Profile: 1 2 3
Wed May 21 14:41:06 2025 Notice (6) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;
Wed May 21 14:41:05 2025 Notice (6) TLV-11 - unrecognized OID;
Wed May 21 14:40:56 2025 Notice (6) Honoring MDD; IP provisioning mode = IPv6
Wed May 21 14:40:49 2025 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
Wed May 21 14:39:14 2025 Warning (5) ToD request sent - No Response received;
Wed May 21 14:38:49 2025 Warning (5) MDD message timeout;
Wed May 21 14:36:33 2025 Notice (6) CM-STATUS message sent. Event Type Code: 20; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;
Wed May 21 14:36:14 2025 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;
Wed May 21 14:35:53 2025 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 193 194; DSID: N/A
Wed May 21 14:35:53 2025 Notice (6) CM-STATUS message sent. Event Type Code: 20; Chan ID: 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A
Wed May 21 14:35:35 2025 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A
Wed May 21 14:35:25 2025 Notice (6) CM-STATUS mehan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3
Wed May 21 14:34:47 2025 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.
Wed May 21 14:34:43 2025 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.
Wed May 21 14:34:32 2025 Notice (6) DS profile assignment change. DS Chan ID: 33; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=;
Wed May 21 14:34:32 2025 Notice (6) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;
Wed May 21 14:33:46 2025 Notice (6) US profile assignment change. US Chan ID: 41; Previous Profile: 11 13; New Profile: QOS=1.1;CM-VER=3.1;
Wed May 21 14:32:46 2025 Notice (6) US profile assignment change. US Chan ID: 41; Previous Profile: 10 13; New Profile: 11 13.;CM-QOS=1.1;CM-VER=3.1;
Wed May 21 14:24:46 2025 Notice (6) US profile assignment change. US Chan ID: 41; Previous Profile: 11 13; New Profile: 10 13.;CM-
Wed May 21 14:23:31 2025 Notice (6) US profile assignment change. US Chan ID: 41; Previous Profile: 12 13; New Profile: 11 13.;CM
Wed May 21 14:22:46 2025 Notice (6) US profile assignment change. US Chan ID: 41; Previous Profile: 10 13; New Profile: 12 13.;CM-QOS=1.1;CM-VER=3.1;
Wed May 21 14:15:10 2025 Notice (6) CM-STATUS message sent. Event Type Code: 5; Chan ID: 5; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA ProfileCM-QOS=1.1;CM-VER=3.1;
Any Criticals, Errors or Warnings seen in the event logs needs to be reviewed and resolved by the ISP. Indicates a signal issue on the ISP line up to the modem.
Still need to see rest of cable connections page.
What brand and model# router is connected to the CM modem?
Do you have TV services with the ISP or just streaming TV to the TVs with the host WiFI router?