2 Messages
T3 Timeouts Frequent
We've had a rock solid modem connection with Xfinity since taking their service 3 years ago. I use a user-owned Netgear CM700 which has operated problem free. Lately, we've been getting transient T3 Timeouts, sometimes 2–3 times per day, sometimes none. A copy of our log since February 08, 2025 is attached to this message. We need some help in finding out if it's our issue (splitter, connectivity, modem, etc.) or an Xfinity issue downstream. Please assist.
Modem Log:
| Feb 08 2025 06:34:16 | Critical (3) | No Ranging Response received - T3 time-out |
| Feb 08 2025 06:34:16 | Critical (3) | No Ranging Response received - T3 time-out |
| Feb 08 2025 06:35:37 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Feb 08 2025 07:49:33 | Critical (3) | No Ranging Response received - T3 time-out |
| Feb 18 2025 06:47:33 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Feb 18 2025 07:54:45 | Critical (3) | No Ranging Response received - T3 time-out |
| Feb 19 2025 11:42:58 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Feb 19 2025 12:24:25 | Critical (3) | No Ranging Response received - T3 time-out |
| Feb 19 2025 14:45:41 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Feb 19 2025 15:22:13 | Critical (3) | No Ranging Response received - T3 time-out |
| Feb 22 2025 09:27:24 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Feb 22 2025 11:46:20 | Critical (3) | No Ranging Response received - T3 time-out |
| Feb 27 2025 02:02:39 | Warning (5) | Lost MDD Timeout |
| Feb 27 2025 02:25:17 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 06 2025 08:59:11 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 06 2025 09:06:44 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 06 2025 22:12:28 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 06 2025 23:01:38 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 07 2025 11:43:25 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 07 2025 11:45:08 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 07 2025 21:12:36 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 07 2025 21:29:17 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 07 2025 23:01:38 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 08 2025 00:19:48 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 08 2025 10:44:39 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 08 2025 11:48:09 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 08 2025 13:55:00 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 08 2025 15:41:16 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 08 2025 15:55:42 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 08 2025 16:09:37 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 08 2025 20:12:46 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 08 2025 20:18:56 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 09 2025 22:35:40 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 09 2025 23:58:10 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 10 2025 00:27:48 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 10 2025 00:30:41 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 10 2025 10:54:58 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 10 2025 10:55:04 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 10 2025 10:57:37 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Mar 10 2025 11:04:57 | Critical (3) | No Ranging Response received - T3 time-out |
| Mar 10 2025 14:09:41 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
EG
Expert
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113.2K Messages
6 months ago
Are you actually having connection drops, or are you just focusing on the error log entries ?
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EG
Expert
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113.2K Messages
6 months ago
For a test, does a PC connected directly to the CM 700 cable modem (no routers or MoCA adapters in the mix) with an ethernet cable have connection drops ?
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EG
Expert
•
113.2K Messages
6 months ago
@user_ng3cd5
Have you had a chance to try that test ?
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