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1 Message
Started Unicast Maintenance Ranging - No Response received - T3 time-out
I am having consistent internet connection drops due to the issue stated above. I have exhausted all resources to get an answer. My at-home router/modem is a Nighthawk CAX30. The cable diagnostics are below. I need to understand how to fix this as working from home has become impossible due to the frequency of T3 time-out and auto modem resets.
| Channel | Lock Status | Modulation | Channel ID | Frequency | Power | SNR | Correctables | Uncorrectabables |
| 1 | Locked | 256 QAM | 4 | 405000000 Hz | 4.8 dBmV | 44.4 dB | 0 | 0 |
| 2 | Locked | 256 QAM | 1 | 387000000 Hz | 5.1 dBmV | 44.6 dB | 0 | 0 |
| 3 | Locked | 256 QAM | 2 | 393000000 Hz | 5.1 dBmV | 44.5 dB | 0 | 0 |
| 4 | Locked | 256 QAM | 3 | 399000000 Hz | 4.9 dBmV | 44.5 dB | 0 | 0 |
| 5 | Locked | 256 QAM | 5 | 411000000 Hz | 4.8 dBmV | 44.4 dB | 0 | 0 |
| 6 | Locked | 256 QAM | 6 | 417000000 Hz | 4.5 dBmV | 44.3 dB | 0 | 0 |
| 7 | Locked | 256 QAM | 7 | 423000000 Hz | 4.5 dBmV | 44.2 dB | 0 | 0 |
| 8 | Locked | 256 QAM | 8 | 429000000 Hz | 4.4 dBmV | 44.1 dB | 0 | 0 |
| 9 | Locked | 256 QAM | 9 | 435000000 Hz | 4.2 dBmV | 44.0 dB | 0 | 0 |
| 10 | Locked | 256 QAM | 10 | 441000000 Hz | 4.5 dBmV | 44.2 dB | 0 | 0 |
| 11 | Locked | 256 QAM | 11 | 447000000 Hz | 4.6 dBmV | 44.3 dB | 0 | 0 |
| 12 | Locked | 256 QAM | 12 | 453000000 Hz | 4.5 dBmV | 44.3 dB | 0 | 0 |
| 13 | Locked | 256 QAM | 13 | 459000000 Hz | 4.2 dBmV | 44.1 dB | 0 | 0 |
| 14 | Locked | 256 QAM | 14 | 465000000 Hz | 4.4 dBmV | 44.1 dB | 0 | 0 |
| 15 | Locked | 256 QAM | 15 | 471000000 Hz | 4.4 dBmV | 44.0 dB | 0 | 0 |
| 16 | Locked | 256 QAM | 16 | 477000000 Hz | 4.1 dBmV | 43.5 dB | 0 | 0 |
| 17 | Locked | 256 QAM | 17 | 483000000 Hz | 4.0 dBmV | 42.9 dB | 0 | 0 |
| 18 | Locked | 256 QAM | 18 | 489000000 Hz | 4.0 dBmV | 43.4 dB | 0 | 0 |
| 19 | Locked | 256 QAM | 19 | 495000000 Hz | 4.0 dBmV | 43.7 dB | 0 | 0 |
| 20 | Locked | 256 QAM | 20 | 501000000 Hz | 3.8 dBmV | 43.6 dB | 0 | 0 |
| 21 | Locked | 256 QAM | 21 | 507000000 Hz | 4.0 dBmV | 43.6 dB | 0 | 0 |
| 22 | Locked | 256 QAM | 22 | 513000000 Hz | 3.6 dBmV | 43.5 dB | 0 | 0 |
| 23 | Locked | 256 QAM | 23 | 519000000 Hz | 3.8 dBmV | 43.5 dB | 0 | 0 |
| 24 | Locked | 256 QAM | 24 | 525000000 Hz | 3.7 dBmV | 43.4 dB | 0 | 0 |
| 25 | Locked | 256 QAM | 25 | 531000000 Hz | 3.6 dBmV | 43.4 dB | 0 | 0 |
| 26 | Locked | 256 QAM | 26 | 537000000 Hz | 3.9 dBmV | 43.4 dB | 0 | 0 |
| 27 | Locked | 256 QAM | 27 | 543000000 Hz | 3.7 dBmV | 43.4 dB | 0 | 0 |
| 28 | Locked | 256 QAM | 28 | 549000000 Hz | 3.5 dBmV | 43.3 dB | 0 | 0 |
| 29 | Locked | 256 QAM | 29 | 555000000 Hz | 3.4 dBmV | 43.3 dB | 0 | 0 |
| 30 | Locked | 256 QAM | 30 | 561000000 Hz | 3.1 dBmV | 43.1 dB | 0 | 0 |
| 31 | Locked | 256 QAM | 31 | 567000000 Hz | 2.9 dBmV | 43.0 dB | 0 | 0 |
| 32 | Locked | 256 QAM | 32 | 573000000 Hz | 2.7 dBmV | 43.0 dB | 0 | 0 |
EG
Expert
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122.6K Messages
2 days ago
The downstream signal power level and the SNR values were good at that snapshot in time. And there were no bit errors. Please also post the upstream power level values, and also post the modem's RF error log entries in their entirety (copy and paste all of the text) but redact the CM and the CMTS MAC addresses for privacy or else the forum bot will not allow your post to be seen publicly.
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XfinityJamesC
Official Employee
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3.3K Messages
50 minutes ago
Greetings, @user_24ytp1! I hope your week has been treating you well. Thanks so much for taking a moment out of your busy day to leave a post on our community forum. I'm sorry to hear you're experiencing all these connection drops, but you have definitely come to the right place for assistance.
These signals look pretty good, but as @EG mentioned, the upstream power levels and RF error log entries may tell a different story. It's also possible there could just be a physical connection break occurring because of a loose or deteriorating connection point between the tap and your CAX30. If you could send our team a direct message with your full name, the name listed on the account (if different), and the service address associated with your account, I'd be more than happy to look into this for you.
To send a Direct Message, please click on the “Direct Message” (speech bubble) icon in the top-right corner of the screen, then the "Start new conversation" (pencil and paper) icon. In the section, type or select "Xfinity Support" and type your message in the text area near the bottom of the window and press Enter to send your message and initiate a live session. You can see how to send us a direct message here, https://forums.xfinity.com/conversations/guidelines/how-to-direct-messaging-within-the-forum/697ba1e570934d009185c514.
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EG
Expert
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122.6K Messages
3 minutes ago
@user_24ytp1
Upstream power and log entries please ?
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