Please does anybody have a solution. 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). XFINITY; SMALL BUSINESS; ENTERPRISE; 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 … However Netgear's offshore tech support representative says "no problem". Close. This became a huge issue since our household is pretty dependent on the internet (For school work, VoIP, and streaming of various movies/music). Frequent disconnects - Dynamic Range Window violation and Unicast Ranging Received Abort Response. So who's right? Press question mark to learn the rest of the keyboard shortcuts. Public Statistics. Good starting point anyway. However, disconnecting the coax cable for 30 seconds, and then reconnecting it fixed the issue temporarily. 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. The other day, the same exact issue started happening again. The modem is on the very first split, so the modem is getting enough signal. 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). It's Comcraptic! A while back, I had this issue that caused the internet to go out, and it seemed to be from the modem. That's funny, mine just crapped out Wednesday of last week after working flawlessly for years. It's been a good 4 or 5 months with no issues with the internet, at all. Press question mark to learn the rest of the keyboard shortcuts Welcome to the Xfinity community! /u/windowdressing123 let's taking a look at why you lost connection. Comcast Business. Mark as New; Bookmark; Subscribe; Hi - recently, I've been receiving frequent disconnects. Hi, My internet cuts out periodically and it is very irritating. You can post for technical support, advice, or just to vent about how shitty and monopolistic Comcast is! Press question mark to learn the rest of the keyboard shortcuts. I went out and bought a new Linksys one the next day. xfinity no ranging response received. Wed Apr 29 12:47:01 2020 : Critical (3) Received Response to Broadcast … 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. Should you experience further issues, please create a new post. Date Registered ‎03-18-2019 02:46 PM: Date Last Visited ‎09-30-2019 01:48 PM: Xfinity was ranked as the most improved company in terms of customer satisfaction in 2020. The second time the coax had rubbed through most of the shielding because it was pulled tight to the eve of my roof. 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. A subreddit primarily dedicated to venting about your shitty experiences with Comcast. Official Employee ‎03-18-2019 03:04 PM. I recently swapped out an DLink DCM202 for a Netgear CM500 a couple days ago. Hi There - my internet is very intermittent over the last few days. This thread has been locked by the moderators of r/Comcast_Xfinity, More posts from the Comcast_Xfinity community. I have a CM500-100NAS modem and an Orbi router with satellite. 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. Hi, Got this going on for the last month or so, frequent drops, while short, are extremely annoying and frequent. Dealing with intermittent internet like i am back when the internet first came out wtf. Cookies help us deliver our Services. 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. I've had to disconnect the coax about 5 times in the past two days. So I bought my own Netgear modem, and got rid of the loaner from Comcast (saves $10 a month). This post is now closed. 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 … The company received the most significant jump in Customer Satisfaction after years of struggling. Or post them here so someone can look at them. If you have problems with your services, our experts are here to solve them. Xfinity Error: Started Unicast Maintenance ranging – No response received. New comments cannot be posted and votes cannot be cast. We can help with: technical issues, general service questions, upgrades & downgrades, new accounts & transfers, disconnect requests, credit requests and more. Comcast Business. Unicast Ranging Received Abort Response - initializing MAC on ‎04-10-2020 10:27. *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 Our community is your official source on Reddit for help with Xfinity services. Unicast Ranging Received Abort Response - initializing MAC . Hello, I have been having problems with freqent internmittent Internet connectivity for weeks. That is, until recently. Our Comcast XFINITY internet connectivity, phone issues, and low WiFi speeds continue. 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) Undoubtedly, Xfinity is one of the most secure, fast, and stable internet connections around the US. This fixed the issue for a good couple of months. 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 . 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 - … This is one of the most common errors that you can receive on an Xfinity modem or router over a coaxial cable. 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. By using our Services or clicking I agree, you agree to our use of cookies. Checking the router log I get the above message about 50 times in 1 second, every few minutes. Ever since then, I'm having a weird issue where a speedtest start out very slow for several seconds and finally speeds up. 1274 ‎03-18-2019 02:48 PM: � View All. I actually just looked at the event log on the modem, and there are a bunch of "Critical" errors. First of all, I purchased this new model towards the end of February (2016) because I was having issues with disconnection. any advice? Comcast recommended that I purchase a new modem, which I did (CM500). 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. 5) The logs show a DoS attack (sometimes simultaneously with above, sometimes not) 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. Looks like you're using new Reddit on an old browser. 20000700 Unicast Ranging Received Abort Response - Re-initializing MAC 20000500 Started Unicast Maintenance Ranging - No Response received - T3 time-out Man, that sounds horrible. [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 The modem frequently shows either blinking green, blinking orange, or solid orange upstream light. I had a problem just like that a couple of times. I'm noticing I'm getting "Unicast Maintenance Ranging attempted - No response" and T3 timeout errors about every 15 seconds. Might help narrow down the cause. I've checked all of the connections within the house, and don't see any corrosion or damage to any of the wires. 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. I hope that's not the case here. Certain time of day, this occurs on my modem. Had a scheduled appointment on 10/6/2018 but no one ever showed up. Comcast_Gina. bkatch123 over 3 years ago. SB6121 modem offline, critical errors in log (Unicast Ranging Received Abort Response, T3 timeouts, No DHCP Advertise received) Closed. Edit: I'd start logging those levels..When it works and when it doesn't. Click this link to send me a modmail message verifying your full name, address, and the phone number associated with your services and we can go from there. This indicates that today Xfinity can solve most of the customer’s issues better than before … Press J to jump to the feed. Why is this happening and how do I fix this? 0 Kudos Reply. How did you finally figure that out? I … 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 - … Performed a search and similar topics were marked resolved, so I'm starting a new one. So if you can, I would inspect all the coax you can for damage. Started Unicast Maintenance Ranging – No Response Received. The modem will now reset its cable interface. 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. Comcast. ... Unicast Ranging Received Abort Response Connectivity. Logs are filled with T3 timeouts and none of the people that I talk to seemed to understand that there is an issue. Please let me know if you have an idea what the issue could be. ... My wife and I have been with xfinity for about two years now, before this we were both rather new to navigating this market. 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? XFINITY; SMALL BUSINESS; ENTERPRISE; Comcast Business. 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. 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. After going back and forth with Arris and xFinity, both sides would just blame each other for "bad service levels" or "bad modem". I'd check your signal levels. 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. Posted by 3 years ago. 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. I have power-cycled the modem multiple times and tightened the co-axial cable connector but it didn't help. 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". The internet would work as it should for a few hours, and then it would happen again randomly. 1. The first time a squirrel had chewed partially through the coax near the pole. Any help would be appreciated. ... Unicast Ranging Received Abort Response. Tech support representative says `` No problem '' purchase a new post ever then. 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