Where are you getting this error log file from because it does not look like a Comcast Gateway (CG) error file. When it T4 times out, I lose upstream channel 5, and then the modem resets itself in an attempt to regain connection. T4 (Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received) The cable modem did not receive a station maintenance opportunity in which to transmit a Ranging Request (RNG-REQ) message within the T4 timeout period (30 to … Help determining if I have malware and part of botnet - posted in Am I infected? Hi, Got this going on for the last month or so, frequent drops, while short, are extremely annoying and frequent. We rebooted the modem which caused the power failure notice today, but last time we did not and both times we were down for 5-10 minutes. Every day or two pretty much my internet goes down. Could you log into the CG, go to gateway summary, click on the right side cable tab and post your CG signaling parameters? FAQ: Unusual access. C6300 randomly loses connection with ISP T3/T4 Timeout, Model: C6300BD-1CXNAS|Docsis 3.0 AC1750 Cable Modem Router, Re: C6300 randomly loses connection with ISP T3/T4 Timeout. You are correct T3 and T4 timeouts are issues with your cable signal and TWC will have to come fix the issues I linked a article about these time outs. T4 ( Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received ) Explanation: The cable modem did not received a station maintenance opportunity in which to transmit a Ranging Request (RNG-REQ) message within the T4 timeout period (30 to 35 seconds). Ask questions, explore answers, join the conversation. I have adjusted the MTU setting and it doesn't seem to have changed anything. No ranging response received - T3 timeout. Channel IDLock StatusModulationPower LevelSymbol Rate1Locked64-qam43.0 dBmV25600002Locked64-qam43.0 dBmV51200003Locked64-qam43.0 dBmV51200004Locked64-qam43.0 dBmV51200005Locked64-qam43.0 dBmV5120000 Message 1 of 41 Labels: Troubleshooting; 0 Kudos Reply. Since upgrading I've had frequent issues with the connection - all wired network so nothing WiFi related. Shown below is the log output from mine (with Log Filter Type = "Event Log"), as stated, please post a screen shot of your signal levels found at http://10.1.10.1 username=cusadmin password=highspeed. This IP address 52.175.237.137 has been blocked for unusual usage patterns 0345 454 1111 from any other UK phone. I had a CM600 modem to support Comcast's Extreme 150 service. This topic has been marked solved and closed to new posts due to inactivity. I'll be sat here working and my voice call will drop, or … Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out. I am quite frustrated at this point. What do I do? Multiple resets of the modem has been of no help. Text service on 07533051809. the log output looks to be from a Cisco DPC3939B or similar. T4 Timeout ( Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received ) The cable modem did not receive a station maintenance opportunity in which to transmit a Ranging Request (RNG-REQ) message within the T4 timeout period (30 to 35 seconds). Got them to swap me a different one and it helped a little but not much. Can someone please help? I will contact TWC and have them address this issue. Jun 30 2016 21:43:31. Does anyone know what this event log is telling me? We've had this issue since we moved to this location. Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0; Wed Mar 18 11:27:23 2020: Critical (3) [Docsis][690]: SW upgrade Failed after download - SW File corruption2015/6/2 14:31:01 Error, [Dhcpc][2491]: erouter0 got new IP X.X.X.X2015/6/2 14:30:55 Notice, [Docsis][690]: SW Download INIT - Via Config file2015/6/2 14:30:39 Notice, [Docsis][690]: No Ranging Response received - T3 time-out2015/6/2 14:29:56 Critical, [Docsis][690]: Disruption during SW download - Power Failure2015/6/2 14:29:54 Error, [Docsis][690]: No Ranging Response received - T3 time-out2015/6/2 14:25:36 Critical, [Docsis][689]: SW upgrade Failed after download - SW File corruption2015/5/26 08:23:00 Error, [Dhcpc][2545]: erouter0 got new IP X.X.X.X2015/5/26 08:22:52 Notice, [Docsis][689]: SW Download INIT - Via Config file2015/5/26 08:22:36 Notice, [Docsis][689]: No Ranging Response received - T3 time-out2015/5/26 08:21:52 Critical. T4 ( Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received ) Explanation: The cable modem did not received a station maintenance opportunity in which to transmit a Ranging Request (RNG-REQ) message within the T4 timeout period (30 to 35 seconds). Any help would be appreciated - thanks. 2018-05-04 15:55:41.00 82000300 - 3724453 I have called TWC on multiple occasions but of course they have no clue what's wrong and have instructed me to investigate the modem/router for issues. [Dhcpc][10012]: erouter0 T1 Expired, Enter Renew State, [Dhcpc][10012]: erouter0 got new IP 67.177.167.54, [Docsis][526]: Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out, [Dhcpc][1643]: erouter0 got new IP 67.177.167.54, [Dhcpc][1632]: erouter0 T1 Expired, Enter Renew State. Now it has gotten so bad I am lucky if I stay online for 15 minutes at a … Have Suddenlink cable internet. Was resetting itself 10+ times a day. Well guess what I have bought multiple modems and still have the same issue. I purchased this modem back in April 2016 for use at my house with TWC. Hello everyone, I am looking for help and I am hoping I can maybe find some answers here. We hope you'll join the conversation by posting to an open topic or starting a new one. Received Response to Broadcast Maintenance Request, but no unicast maintenance opportunities received – T4 timeout . The logs on the router show this: How do I fix this? May 02 2015 14:00:24 3-Critical R03.0 Ranging Request Retries exhausted; May 02 2015 14:00:24 3-Critical R06.0 Unicast Maintenance Ranging attempted - No response - Retries exhausted. 150 from Virgin landline. No Ranging Response received - T3 time-out. MAybe we need to swap this modem out? My hub3 (modem mode) keeps acting up it loses connection randomly causing my router to crash and reset itself (very weird) Initially I thought it was my router that was getting old (Linksys MAX stream A1900 EA7500) I reinstalled latest firmware and factory reset the router at the same time I … And it goes on every couple of hours. About three weeks ago, I noticed a drop off and did a speed test and could not get more than 50mbps. Went with the … Jun 30 2016 21:42:40. My cable broadband keeps timing out. This continued to happen daily at about the same time consistently getting more frequent and random over time. However after reading these boards for support and elsewhere I am starting to question TWC. All, I'm on the M350 package, but was offered a HUB4 to improve things in my area. May 02 2015 14:00:24 3-Critical R03.0 Ranging Request Retries exhausted;CM- May 02 2015 14:00:22 3-Critical R02.0 No Ranging Response received - T3 time-out;CM- [Docsis][526]: Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out: 2015/5/30 23:12:45: Critical [Docsis][526]: Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out: 2015/5/30 23:12:44: Critical MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1, Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out, No Ranging Response received - T3 time-out, Unicast Maintenance Ranging attempted - No response - Retries exhausted, Started Unicast Maintenance Ranging - No Response received - T3 time-out, Received REG-RSP while in REG-HOLD1 state. The modem has worked well for about 2 months but then one afternoon out of the blue it dropped connection for a minute or two. I have the C7000 Modem Router and just two nights ago, my network connection just dropped in the middle of a game I was playing, it came back on and I … I have had issues since February of my internet constantly dropping all the comcast techs say is that my modem is bad. Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1. This weekend it has been timing out multiple times an hour. http://volpefirm.com/docsis_timout_descriptions/. The best time to call is weekdays 08:00 to get a UK agent, anything after 10:00 you must realise that you are quite likely to get through to an offshore agent that doesn't speak English as a first language. "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=[redacted];CMTS-MAC=[redacted];CM-QOS=1.1;CM-VER=3.1;" 01/05/2020 03:57 82000200 Decided to try and buy my own. Connection was BRUTAL with the router they were renting to me. Tried all the troubleshooting I could find here, as well as from 3rd party sources, but no dice, it comes back and goes away randomly Here are the logs which I … Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out . Our modem is dropping connection, the logs are below. 2008-07-02 12:22:13 3-Critical 0x04E33A10 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 timeout 2008-07-02 12:21:41 3-Critical 0x04E33A74 Started Unicast Maintenance Ranging - No Response received … Thanks Daren. I've had it for a few years and was consistently getting 160 to 170mbps speed from it. 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