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Downstream light keeps blinking
I have C6300 cable modem router with internet service through TimeWarner Cable aka Spectrum in Anaheim CA. My DS light keeps blinking I have reset router several times called cable company they refres...
Hello GEO714
I see you are getting T3 timeouts which may be a issues with noise on the cable lines they may need to send a tech out to check your lines.
T3 Timeout ( Ranging Request Retries Exhausted )
Explanation: The cable modem has sent 16 Ranging Request (RNG-REQ) messages without receiving a Ranging Response (RNG-RSP) message in reply from the CMTS. The cable modem is therefore resetting its cable interface and restarting the registration process. This typically is caused by noise on the upstream that causes the loss of MAC-layer messages. Noise could also raise the signal-to-noise ratio (SNR) on the upstream to a point where the cable modem’s power level is insufficient to transmit any messages. If the cable modem cannot raise its upstream transmit power level to a level that allows successful communication within the maximum timeout period, it resets its cable interface and restarts the registration process. This error message is DOCSIS event message is R03.0, Ranging Request
DarrenM
What happens if it won't stop blinking
I would say keep a eye on the modem if it starts acting up more post your logs and power levels of the modem may help us figure out if its a issue with the modem or the ISP.
DarrenM
I'm having simular problems with power levels on the downstream channels. specially channel 5 " not locked" status. power levels " according to Comcast +10 to -10 dBmv. when I see a level of -16dBmv I have terrible Mbps speeds. ( 50Mbps-ish) .. now after doing 1 or 2 or 3 " modem reboots, internally ) channel 5 may or may not change to Comcast dBmv comfort level, and I then get steady downstream light on front panel and My Promised speeds of 200-230Mbps. my question is Who /Where / What does this dBmv come from, ? my box or comcast feed ?
- Give Comcast a call tell them to test line on all channels to make sure it’s not on their end. That will help expose where issue is with Router or Lines? My issue ended up being Spectrum Lines up on pole squirrels had bitten into lines they had to replace who section of lines. Have not had a blinking light issue since
sending a *jpg in hope a Netgear Guru / Tech could confirm that captured channels and the levels that my c3700-100nas have locked onto are the signal strenght sent from ISP. Or am I having problems with modem capturing the signal. Was charged a fee last week, yet not positive they troubleshot problem, just swapped out a splitter and left.
