What does Started Unicast Maintenance Ranging mean?

When your internet connection is interrupted and your modem attempts to reconnect, it sends a signal to your internet service provider, which can occasionally be unicast maintenance ranging.

What does this mean started unicast maintenance ranging no response received T3 time out?

T3 timeouts are upstream snr issues. Check and make sure all exposed cable fittings are tight then reboot your modem. Watch for uncorrectables to increase. If they do then it could be the modem or a cable issue. Would need a tech at this time to determine cable issues.

What does this mean started unicast maintenance ranging no response received?

What can cause Xfinity Error: Started Unicast Maintenance Ranging – No Response Received. One of the most common reasons for this error is that if you are using a coaxial cable for your internet reception and it is getting some noise.

What is TLV 11?

The TLV-11 – unrecognized OID message simply indicates that the configuration file contains different vendor (or multiple vendor) information in it. You may see the above notice in your cable modem’s log files every time the modem registers it gets the configuration file.

What does MDD message timeout mean?

MDD Messages are technical terms for DOCSIS based modems. These messages are used to transmit signals periodically over all the downstream channels. The “Timeout” warning usually appears when the signals don’t reach your DOCSIS modem, and the internet connection doesn’t establish successfully.

What is a T4 timeout?

T4 Timeouts result when a CM does not receive a Station Maintenance Opportunity in which to transmit a Ranging Request within the T4 timeout period which is approximately 30 seconds. T4s typically result from an impairment in the downstream.

What does T3 time out mean?

A single T3 timeout simply means that one station maintenance window was missed. That is the cable modem failed one time to check in with the CMTS.

What is a MIMO event?

On a D3 cable modem system, the CMTS sends a packet called an MDD (Mac Domain Descriptor) that tells the modem specific details about the cable plant, they determine whether the cable modem attempts to boot up in IPv6 or IPv4 mode. The MIMO event is one indicator that the modem has reset.

What do T3 and t4 timeouts mean?

They are typically displayed due to an issue in your wiring, bad cables, Bad node, Bad signal from your ISP, wrong configuration in ISP CMTS/Headend, plant noise, Signal interference, and many other possibilites.

What is lost MDD timeout?

What is a T5 timeout?

T5 Timeout. After the socket is connected in HSMS, if you proceed with selection handshaking for the T5 parameter setting time and fail, it is the time to disconnect and wait for the retry.

How do you fix T3 timeout?

If you’re a casual internet user, you may seldom notice the T3 timeout errors; and when they do occur, you simply reboot your modem and surf on. However, if you’re a gamer or stock trader, a dropped connection will wreck your game, if not your day.

How to troubleshoot unicast maintenance ranging in CT?

Troubleshooting and technician steps, in order: Tech #1 reads signals at the box on the house, says they are fine, replaces in-home 3-way spitter in the basement since existing one was “old.” No effect on T3 disconnects. Customer bypasses all house wiring and connects modem by short length of new coaxial cable directly to the box on the house.

What should I do if my modem is unicast?

Check and make sure all exposed cable fittings are tight then reboot your modem. Watch for uncorrectables to increase. If they do then it could be the modem or a cable issue. Would need a tech at this time to determine cable issues. I’ve double checked all the internal coax back to the demarcation point; everything seems good.

Why did my unicast node split this month?

Very ironic that everyone claimed the node was fine leading up to the FCC complaint. The maintenance team then took a couple of weeks to prepare for the node split. Finally, the node was split this month and the problem went away.

What is the symptom of an error on unicast?

The visible symptom of the error is loss of connectivity for about a minute as the modem struggles to regain the internet connection. This is despite a very strong, clean signal being measured from the pole and throughout the house by four technicians.

What does started unicast maintenance ranging mean?

When your internet connection is interrupted and your modem attempts to reconnect, it sends a signal to your internet service provider, which can occasionally be unicast maintenance ranging.

What should the SNR be on a cable modem?

Ideal levels are approximately 40 to 50 dBmV for single channels, 37 to 48 dBmV each for 2 to 4 channels. The Signal to Noise Ratios should also all be within three dB of each other. However, for power level -15 to -6 dBmV the SNR should be 33 dB or higher and for -6 to +15 dBmV the SNR should be 30 dB or higher.

What is a good SNR for cable?

Acceptable SNR Levels (dB): If QAM64, SNR should be 23.5 dB or greater. If QAM256 and DPL( -6 dBmV to +15 dBmV) SNR should be 30 dB or greater. If QAM256 and DPL(-15 dBmV to -6 dBmV) SNR should be 33 dB or greater.

What causes RCS partial service?

A modem is in a partial service mode of operation any time it is operating with a subset of the channels in the Receive Channel Set (RCS) and/or Transmit Channel Set (TCS) because a channel has become unusable, either due to an inability to acquire a channel or because communication on a channel was lost during normal …

What is no ranging response received?

“No Ranging Response Received – T3 Time-Out” is one of the five DOCSIS Timeout messages you’ll find on router reports due to anomalies in the cable modem. If you come across a T3 timeout, there is no reason to feel harrowed. It is responsible for high-speed data transfer services, including VoIP and cable internet.

What is T3 time out cable modem?

A single T3 timeout simply means that one station maintenance window was missed. That is the cable modem failed one time to check in with the CMTS.

What is a good SNR level for cable modem?

SNR is best over 30, (the higher the better, might work well with as low as 25 at times). Anything less than 25 will cause dropped connections, packet loss, slow transfers, etc. This is true for both the “Downstream SNR” and the “Upstream SNR”, which may be different values.

What does this mean?started unicast maintenance ranging?

“Started Unicast Maintenance Ranging – No Response received” Comcast wants to prove my problem is my 6 monoth old moden, despite the fact the cable is 30 years old and patched. And, the comcast technician gave me a copy of the noise, and said it was the worse she had seen, but comcast can’t find that report.

What should I do if my Unicast is not working?

Tech extensively tests incoming signal as well as in-house wiring for interference, and notes that all signals in and out of house are remarkably clean and strong. T3 timeout error continue the same day. At this point, there is nothing more to be done inside the house, as the senior tech acknowledged.

Why did my unicast node split this month?

What to do if you get calls from Comcast?

When I first received the calls years ago, I immediately called Comcast and was connected with a Customer Account Security specialist. He was able to verify that the account was in someone else’s name in a different state so the collections shouldn’t affect my credit, but couldn’t provide the person’s details to protect their information.