T4 Timeout: “Received Response to Broadcast Maintenance Request, But no Unicast Maintenance Opportunities Received” If the upstream transmit power level cannot be raised to a level that permits communication in the max timeout period, it will reset the cable interface and restart the registration procedure. Noise might also raise the signal-to-noise ratio on the upstream until the cable modem’s power level is inadequate to transmit messages. This is usually caused by noise on the upstream triggering the loss of layer messages. The cable modem will reset the cable interface and restart the registration procedure. This error code indicates that the cable modem has sent 16 Ranging Request (RNG-REQ) messages and received no ranging response (RNG-RSP) message in return from the CMTS. T3 Timeout: “Ranging Request Retries Exhausted” The cable modem resets its cable interface and restarts the registration procedure. The cable modem received no broadcast maintenance opportunities to transmit a Ranging Request (RNG-REQ) in the T2 timeout period (+/- 10 seconds). T2 Timeout: “No Maintenance Broadcasts for Ranging Opportunities Received” You will have to contact your ISP to get a solution to this problem. The cable modem has received no periodic Upstream Channel Descriptor (UCD) communications from the CMTS in the timeout period. VSIF - Vendor-specific information fields.DOCSIS - Data Over Cable Service Interface Specifications.Here, we are concerned with the 5 possible timeout errors, but before you move on, below are some words and their abbreviations you may want to familiarize yourself with so you can get a better understanding of your modem's problem and how to troubleshoot it. It could also be caused by DHCP Warning, a DCHP failure, a Sync Timing failure, or a number of others. They include the T1 through T4 and T6 timeout errors. There are numerous things that can go wrong to cause an error of this kind. It’s one of the first things technicians will look for when attempting to correct an Internet connection problem. This usually means that the hardware is degrading and slowly losing performance. Once in a while, cable modem signals can fall out of their specific operational range.
0 Comments
Leave a Reply. |