My logs at 192.168.100.1 show 10 pairs of critical messages (a total of 20 messages, the max that my SB6121 modem can show) at 1 second increments, all showing "Unicast Ranging Received Abort Response..." and "No Ranging Response received - T3 time-out..." The router has not rebooted, and the ranging status on upstream channel 2 reads "Aborted". Please let me know if you have an idea what the issue could be. Man, that sounds horrible. Unicast Ranging Received Abort Response - initializing MAC . All forum topics; Previous Topic; Next Topic; 1 REPLY 1. Sun Sep 15 18:13:05 2013 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC Sun Sep 15 18:12:43 2013 Critical (3) No Ranging Response received - … ... Unicast Ranging Received Abort Response Connectivity. So if you can, I would inspect all the coax you can for damage. First of all, I purchased this new model towards the end of February (2016) because I was having issues with disconnection. Press J to jump to the feed. Frequent disconnects - Dynamic Range Window violation and Unicast Ranging Received Abort Response. Had a scheduled appointment on 10/6/2018 but no one ever showed up. 1274 ‎03-18-2019 02:48 PM: � View All. Certain time of day, this occurs on my modem. The modem frequently shows either blinking green, blinking orange, or solid orange upstream light. Edit: I'd start logging those levels..When it works and when it doesn't. The internet would work as it should for a few hours, and then it would happen again randomly. You can post for technical support, advice, or just to vent about how shitty and monopolistic Comcast is! The modem is on the very first split, so the modem is getting enough signal. Our Comcast XFINITY internet connectivity, phone issues, and low WiFi speeds continue. The other day, the same exact issue started happening again. Hi There - my internet is very intermittent over the last few days. Should you experience further issues, please create a new post. Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=40:5d:82:e5:26:a0;CMTS-MAC=00:1e:be:ff:28:b0;CM-QOS=1.1;CM-VER=3.0; i have been dealing with this issue for a year and i am fed up. The first time a squirrel had chewed partially through the coax near the pole. 5) The logs show a DoS attack (sometimes simultaneously with above, sometimes not) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=3c:75:4a:34 I noticed that the configuration file has changed from " 161001_vm2.0_d.cfg" to " ^1/019D7B71/161001" Is it normal? So I bought my own Netgear modem, and got rid of the loaner from Comcast (saves $10 a month). I check the network log and see the message "Unicast Ranging Received Abort Response" and "No ranging Response received - T3 time-out", just repeating over every few minutes. Posted by 3 years ago. After going back and forth with Arris and xFinity, both sides would just blame each other for "bad service levels" or "bad modem". Firmware version: https://imgur.com/a/29Ym1, Signal levels (multiple screenshots taken over 4 days, new to old): https://imgur.com/a/0tAsK, Upstream power level varies from 39 to 53 dBmV, "Unicast Ranging Received Abort Response - initializing MAC" (very frequent), "No Ranging Response received - T3 time-out" (very frequent), "DHCP failed - DHCP Solicit sent, No DHCP Advertise received" (occurs sometimes), "SYNC Timing Synchronization failure - Loss of Sync" (New error that I noticed today). That's funny, mine just crapped out Wednesday of last week after working flawlessly for years. New comments cannot be posted and votes cannot be cast. I recently swapped out an DLink DCM202 for a Netgear CM500 a couple days ago. Press question mark to learn the rest of the keyboard shortcuts. Please does anybody have a solution. Our community is your official source on Reddit for help with Xfinity services. Good starting point anyway. 20000700 Unicast Ranging Received Abort Response - Re-initializing MAC 20000500 Started Unicast Maintenance Ranging - No Response received - T3 time-out I'm seeing frequent (often several a day) errors similar to: Started Unicast Maintenance Ranging - No Response received - T … Press J to jump to the feed. Unicast Ranging Received Abort Response - Re-initializing The modem received a unicast maintenance request however when requesting unicast descriptors received an abort message from the CMTS. Comcast_Gina. Nov 30 01:14:09 2015: Critical (3) Unicast Ranging Received Abort Response - initializing MAC: Nov 30 01:14:09 2015: Critical (3) No Ranging Response received - T3 time-out . Official Employee ‎03-18-2019 03:04 PM. 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 … This post is now closed. Ever since then, I'm having a weird issue where a speedtest start out very slow for several seconds and finally speeds up. /u/windowdressing123 let's taking a look at why you lost connection. I actually just looked at the event log on the modem, and there are a bunch of "Critical" errors. Netgear Existing Case # 29644403 (via phone call) Summary: Comcast/Xfinity technician says there's an issue with my CM1000 because of high TX power levels (see screenshots). Comcast Business. any advice? That is, until recently. Dealing with intermittent internet like i am back when the internet first came out wtf. Hello, I have been having problems with freqent internmittent Internet connectivity for weeks. Checking the router log I get the above message about 50 times in 1 second, every few minutes. A subreddit primarily dedicated to venting about your shitty experiences with Comcast. Press question mark to learn the rest of the keyboard shortcuts. Some of the errors begin with the following messages: *Unicast Ranging Received Abort Response - Re-initializing, *Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out, *No Ranging Response received - T3 time-out, *SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing, Also, this is the info on the "Cable Connection" tab: http://imgur.com/a/U0aVk. I'd check your signal levels. Public Statistics. Cookies help us deliver our Services. Close. The modem will now reset its cable interface. 2009-07-21 14:33:05 3-Critical R007.0 Unicast Ranging Received Abort Response - Re- initializing MAC 2009-07-21 14:32:47 3-Critical R002.0 No Ranging Response received - … Welcome to the Xfinity community! I have a CM500-100NAS modem and an Orbi router with satellite. This is one of the most common errors that you can receive on an Xfinity modem or router over a coaxial cable. I've had to disconnect the coax about 5 times in the past two days. Hi, My internet cuts out periodically and it is very irritating. Hi - recently, I've been receiving frequent disconnects. How did you finally figure that out? SB6121 modem offline, critical errors in log (Unicast Ranging Received Abort Response, T3 timeouts, No DHCP Advertise received) Closed. We can help with: technical issues, general service questions, upgrades & downgrades, new accounts & transfers, disconnect requests, credit requests and more. Why is this happening and how do I fix this? Might help narrow down the cause. This indicates that today Xfinity can solve most of the customer’s issues better than before … It turned out being the line was damaged coming into my house both times,and when ever the wind would blow too hard I'd loose connection. Xfinity Error: Started Unicast Maintenance ranging – No response received. bkatch123 over 3 years ago. XFINITY; SMALL BUSINESS; ENTERPRISE; Comcast Business. Comcast Business. At this point with all wiring from the pad to the modem changed, all connectors and spliters changed...Comcast has to admit a problem on the other side of the pad, no?Our mayor sent an email and Senator Linda R. Greenstein's aide Scott has contacted us twice to let us know she … Any help would be appreciated. I … I went out and bought a new Linksys one the next day. Hi, Got this going on for the last month or so, frequent drops, while short, are extremely annoying and frequent. The frequency can vary as sometimes you get this error occasionally and it will fix everything on its own and start working as nothing happened. Or post them here so someone can look at them. [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 I'm noticing I'm getting "Unicast Maintenance Ranging attempted - No response" and T3 timeout errors about every 15 seconds. Wed Apr 29 12:47:01 2020 : Critical (3) Received Response to Broadcast … Logs are filled with T3 timeouts and none of the people that I talk to seemed to understand that there is an issue. ... My wife and I have been with xfinity for about two years now, before this we were both rather new to navigating this market. Press question mark to learn the rest of the keyboard shortcuts I had a problem just like that a couple of times. Looks like you're using new Reddit on an old browser. ... Unicast Ranging Received Abort Response. XFINITY; SMALL BUSINESS; ENTERPRISE; Comcast Business. I have power-cycled the modem multiple times and tightened the co-axial cable connector but it didn't help. I hope that's not the case here. xfinity no ranging response received. It's been a good 4 or 5 months with no issues with the internet, at all. So who's right? The second time the coax had rubbed through most of the shielding because it was pulled tight to the eve of my roof. Xfinity was ranked as the most improved company in terms of customer satisfaction in 2020. Performed a search and similar topics were marked resolved, so I'm starting a new one. Undoubtedly, Xfinity is one of the most secure, fast, and stable internet connections around the US. Restarting the router didn't do anything, and neither did restarting the modem. If you have questions about your services, we're here to answer them. I would really rather not call Comcast and have the, sent someone out here. I have researched the forums and see this is not uncommon. Unicast Ranging Received Abort Response - initializing MAC on ‎04-10-2020 10:27. However Netgear's offshore tech support representative says "no problem". 0 Kudos Reply. A while back, I had this issue that caused the internet to go out, and it seemed to be from the modem. This became a huge issue since our household is pretty dependent on the internet (For school work, VoIP, and streaming of various movies/music). By using our Services or clicking I agree, you agree to our use of cookies. *Unicast Ranging Received Abort Response - Re-initializing *Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out *No Ranging Response received - T3 time-out *ToD request sent - No Response received *MDD message timeout This fixed the issue for a good couple of months. Comcast recommended that I purchase a new modem, which I did (CM500). Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=MACADDRESS;CMTS-MAC=MACADDRESS;CM-QOS=1.1;CM-VER=3.1; Three months ago, I had the Arris SB6190. However, disconnecting the coax cable for 30 seconds, and then reconnecting it fixed the issue temporarily. It's Comcraptic! Comcast. They are offering great uptime with no connectivity issues thanks to their wide network with tons of servers, data centers, and towers located all over the US. Unicast Ranging Received Abort Response - initializing MAC: Jun 05 2017 04:30:06: Critical (3) No Ranging Response received - T3 time-out: Jun 05 2017 00:38:13: Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1: Jun 05 2017 00:37:45: Critical (3) The site may not work properly if you don't, If you do not update your browser, we suggest you visit, Press J to jump to the feed. Started Unicast Maintenance Ranging – No Response Received. Date Registered ‎03-18-2019 02:46 PM: Date Last Visited ‎09-30-2019 01:48 PM: This thread has been locked by the moderators of r/Comcast_Xfinity, More posts from the Comcast_Xfinity community. 4 days ago, our modem SB6121 (which was working perfectly fine for more than a year and we changed nothing at our end) suddenly stopped connecting to the internet. 1. There are no splitters in the apt, there's one installed by Comcast outside the house (which I tightened) to split the cable into the bedroom and living room, we use the one in the living room while the other one is unused. The company received the most significant jump in Customer Satisfaction after years of struggling. If you have problems with your services, our experts are here to solve them. Mark as New; Bookmark; Subscribe; I've checked all of the connections within the house, and don't see any corrosion or damage to any of the wires. 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