About three weeks ago, I noticed a drop off and did a speed test and could not get more than 50mbps. Every day or two pretty much my internet goes down. The logs on the router show this: How do I fix this? 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. MAybe we need to swap this modem out? Ask questions, explore answers, join the conversation. Since upgrading I've had frequent issues with the connection - all wired network so nothing WiFi related. However after reading these boards for support and elsewhere I am starting to question TWC. [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. Was resetting itself 10+ times a day. 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). 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. Decided to try and buy my own. Can someone please help? Went with the … 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 will contact TWC and have them address this issue. Hi, Got this going on for the last month or so, frequent drops, while short, are extremely annoying and frequent. Channel IDLock StatusModulationPower LevelSymbol Rate1Locked64-qam43.0 dBmV25600002Locked64-qam43.0 dBmV51200003Locked64-qam43.0 dBmV51200004Locked64-qam43.0 dBmV51200005Locked64-qam43.0 dBmV5120000 We've had this issue since we moved to this location. Where are you getting this error log file from because it does not look like a Comcast Gateway (CG) error file. Thanks Daren. I purchased this modem back in April 2016 for use at my house with TWC. Any help would be appreciated - thanks. 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- Jun 30 2016 21:43:31. [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 2018-05-04 15:55:41.00 82000300 - 3724453 Well guess what I have bought multiple modems and still have the same issue. This weekend it has been timing out multiple times an hour. 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) Multiple resets of the modem has been of no help. Jun 30 2016 21:42:40. Hello everyone, I am looking for help and I am hoping I can maybe find some answers here. 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. 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. What do I do? FAQ: Unusual access. 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). 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. Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out. 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). This IP address 52.175.237.137 has been blocked for unusual usage patterns 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. I have had issues since February of my internet constantly dropping all the comcast techs say is that my modem is bad. [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. Got them to swap me a different one and it helped a little but not much. Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out . Now it has gotten so bad I am lucky if I stay online for 15 minutes at a … 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 … When it T4 times out, I lose upstream channel 5, and then the modem resets itself in an attempt to regain connection. Message 1 of 41 Labels: Troubleshooting; 0 Kudos Reply. I'll be sat here working and my voice call will drop, or … 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. I had a CM600 modem to support Comcast's Extreme 150 service. My cable broadband keeps timing out. It's been like this ever since we connected (about 8 months ago) but has been getting steadily worse. 0345 454 1111 from any other UK phone. Could you log into the CG, go to gateway summary, click on the right side cable tab and post your CG signaling parameters? 150 from Virgin landline. No ranging response received - T3 timeout. Our modem is dropping connection, the logs are below. All, I'm on the M350 package, but was offered a HUB4 to improve things in my area. And it goes on every couple of hours. Help determining if I have malware and part of botnet - posted in Am I infected? No Ranging Response received - T3 time-out. http://volpefirm.com/docsis_timout_descriptions/. 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 … 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 … 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 … Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1. 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 time out;CM-MAC=[redacted];CMTS-MAC=[redacted];CM-QOS=1.1;CM-VER=3.1;" 01/05/2020 03:57 82000200 Have Suddenlink cable internet. the log output looks to be from a Cisco DPC3939B or similar. Text service on 07533051809. I have adjusted the MTU setting and it doesn't seem to have changed anything. 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. Does anyone know what this event log is telling me? 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