Bottom line: After two months of extensive investigation, there has been no change and no positive diagnosis. Post your modem signals and full logs for more complete advice. In my case, and in others reported here, the events are clustered in time. Customer bypasses all house wiring and connects modem by short length of new coaxial cable directly to the box on the house. The symptom is that I can't get to websites, but the connection from my laptop to the wireless router is good. Tech installs a frequency "trap" on one modem to limit any possible signal interference. Just to update this post: I have now taken the additional step of purchasing a decent battery backup unit with power-conditioner capability, just to eliminate the possibility that fluctuating power levels could be causing the issue. 2019-08-08, 08:42:27: Warning (5) DHCP WARNING - Non-critical field invalid in response ;CM-MAC=14:59:c0:f5:f4:10;CMTS-MAC=00:a2:89:d0:1d:ce;CM-QOS=1.1;CM … Cox tech support only confirms signal strength to house and confidently ensures me it has to do with my equipment. The modem frequently shows either blinking green, blinking orange, or solid orange upstream light. 2019-8-22, 03:04:26 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out; 2019-8-22, 03:04:53 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 … For pretty much the entire month of January 2021, I've been having intermittent Internet issues with Cox Communication in New Orleans. Predictably, the T3 disconnects continued just the same, even with modem and router plugged into battery backup. Tech #2 listens to me recount the troubleshooting steps above, takes a picture of the modem's log screen to send to regional/area supervisor, etc - no additional response, no effect on T3 timouts. They sent a tech out to my house who arrived late. Yesterday I replaced my old Motorola Surfboard 6141 modem with a Netgear CM600 modem, and activated it with Comcast. Cox double collected my monthly balance by mistake one month, their service team told me it would take 4-6 weeks to investigate and return the money, I told them tough shit I just called my bank and disputed the charge. 2020-04-09, 04:09:10Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out; 2020-04-07, 03:48:40Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out; 2020-04-07, 03:48:03Warning (5)Unicast DSID PSN startup error No effect on the T3 disconnects - timeouts observed on both new modems. Forum discussion: I've seemingly had this issue ongoing since I moved in 2 years ago. Disconnecting the coax passthrough in the battery backup box restored the three bonded channels. Bottom line: After two months of extensive investigation, there has been no change and no positive diagnosis. This indicates a problem on your upstream connection. Event Log: Unicast Maintenance Ranging. Started Unicast Maintenance Ranging REG RSP not received T6 Timeout and retries exceeded No Ranging Response received B-INIT-RNG Failure Current Info HW 2.02 FW V6.01.07 Please help before I light this crap on fire. Multiple resets of the modem has been of no help. Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-2020-11-19, 17:55:42: Critical (3) ... for example, cox is now requiring docsis 3.1 for speeds greater than 150mbps. By the time he arrived, I had already left to be at another appointment and he ended up speaking with my wife, who had no idea of the problem. Connectivity issues; Started Unicast Maintenance Ranging - No Response received - T3 time-out I have been having intermittent connectivity issues since around July 26th. I've swapped out splitters, bypassed router, etc. Confirm that all connections are tight. Started Unicast Maintenance Ranging - No Response received - T3 time-out I have … Hello, I have been having problems with freqent internmittent Internet connectivity for weeks. Check your private messages. At this point, there is nothing more to be done inside the house, as the senior tech acknowledged. I … Started Unicast Maintenance Ranging - No Response received - T3 time-out; ... Cox tech support only confirms signal strength to house and confidently ensures me it has to do with my equipment. My modem is an Arris SB6183 that is brand new (less than a month old). The intermittent signal loss has been ongoing for approximately 2 months now. You should log into your modem and take Screen shots of the power levels at random times of the day, This way you can post them here if they appear different from each other, Will help a cox tech figure out the problem! The T3 timeouts occurred whether I had the coax running through the battery box or not.). This weekend it has been timing out multiple times an hour. Customer purchases TWO new, Cox-approved modems and connects each one separately to the box on the house. They sent a tech out to my house who arrived late. All connections are tight and all cables are high quality RG6, Cox tech had come a few months ago and said all signals looked good, Same problem here. I have a CM500-100NAS modem and an Orbi router with satellite. 9/5/2007 12:26 3-Critical R005.0 Started Unicast Maintenance Ranging - No Response received - T3 time-out I logged into the modem to check the event log and have 31 … Unicast Maintenance Ranging attempted - No response - Retries exhausted I have been having connection issues with my internet and have had technicain out on 4/9/2020 and they said no issue detected. Please let me know if anyone is able to find a fix. This is despite a very strong, clean signal being measured from the pole and throughout the house by four technicians. Tech #1 reads signals at the box on the house, says they are fine, replaces in-home 3-way spitter in the basement since existing one was "old." Customer tries running system without Wi-Fi router - no effect. 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 … Tech #3 again reads signals at the box on the house and assures me they are strong (which I know they are.) The replaced the ends of the cables and tested the signal. Remove all unnecessary splitters. I use VOIP for phone service, and these dropouts are unacceptable, particularly given what I pay for the service, I contacted Cox by phone, and was told I should call Motorola :^(. Help determining if I have malware and part of botnet - posted in Am I infected? Could you reply to mine with your account details please? If problems persist, contact Cox and request a tech visit as T3 timeouts are often caused by problems outside the boundaries of your property. Understanding Event Logs Ever since I have been getting random drops of my internet connection. 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). There is a fundamental flaw with the cable company dogma that we see repeated here. T3 timeout error continue the same day. The issue now enters the realm of mysterious, hard-to-track problem that will likely never be addressed. After hours of calls between … (I actually ran the coaxial through the unit as well, but the only effect I noticed was that the modem status showed only one bonded downstream channel, rather than the three I had been seeing before. I am having this issue with my SBG6782-AC. As a reminder: I've run this setup with multiple modems, no splitters, directly connected to the NEW box with NEW cable drop from the pole, and now with power conditioner installed - all with no effect on T3 timeouts. No effect on T3 disconnects. In the last 2 days I have had 7 dropouts, lasting 1-4 minStarted Unicast Maintenance Ranging - No Response received - T3 time-out - 3 outages, Unicast Ranging Received Abort Response - Re-initializing MAC 4 outagesThis is occurring on a newly installed Motorola MB7621, after I was told my problem might be with my 2 yr old Netgear CM600My logs look pretty much like those posted. I still experience T3 disconnects daily. Troubleshooting and technician steps, in order: Could be random fluctuating power levels on the cable either from the street box to your house or somewhere in your house, Only way to explain this error constantly happening, If its random it more then likely is normal when they check the levels so they dont notice it, Because if you have went through numerous modems and still get this issue its def something Line/System related for Cox to fix. CT - Started Unicast Maintenance Ranging - No Response received - T3 time-out; The visible symptom of the error is loss of connectivity for about a minute as the modem struggles to regain the internet connection. I still experience T3 disconnects daily. Internet Forum requires membership for participation - click to join. Insane. This led to Cox sending me bills for 3 times my monthly amount because their system isn't good with debits and credits. Customer escalates issue with Cox - senior field line technician called to the house. I've gone through the rigamarole of resetting the modem (both by a refresh from the Cox Customer care to … And some isp's still might allow 600mbps using that modem, but not all do. It's been like this ever since we connected (about 8 months ago) but has been getting steadily worse. Same situation here. Replace interior cables with brand new high quality RG6 if practical. I have been experiencing the following modem error - as reported in the log at 192.168.100.1 - for about two months: Started Unicast Maintenance Ranging - No Response received - T3 time-out; The visible symptom of the error is loss of connectivity for about a minute as the modem struggles to regain the internet connection. Repeated dropout of internet connection. Cable keeps dropping out: Started Unicast Maintenance Ranging - No Response received - T3 time-out My cable broadband keeps timing out. Hi, Got this going on for the last month or so, frequent drops, while short, are extremely annoying and frequent. Replace interior cables with brand new high quality RG6 if practical. I can't come to any conclusion here other than the problem is with Cox's line outside my house. 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 live in a relatively medium sized house (not that wide/long, 3 floors, router is on second floor, gaming room is on first floor), and I’m not even far away from the router, but it connects like a fucking potato. Remove all unnecessary splitters. Messages as “Unicast Maintenance Ranging” may seem strange when the modem is unable to reach the equipment at service provider, and it is not able to finish the standard periodic keep alive that cable modems do. And don’t get me started on how weak the fucking signal is. No effect - T3 errors still being observed. Basically my upload speed crashes with no warning, I'll go … After going back and forth with Arris and xFinity, both sides would just blame each other for "bad service levels" or "bad modem". No effect on T3 disconnects. The tech cycled my coax cable, told her the problem was fixed and left...then charged me $45. Line tech replaces box on side of house, line from pole to box, and short run of interior cable from box to modem. If problems persist, contact Cox and request a tech visit as T3 timeouts are often caused by problems outside the boundaries of your property. Started Unicast Maintenance Ranging - No Response received - T3 time-out, Started Unicast Maintenance Ranging - No Response received - T3 time-out - 3 outages, Unicast Ranging Received Abort Response - Re-initializing MAC, Internet Forum requires membership for participation - click to join. This indicates a problem on your upstream connection. Tech extensively tests incoming signal as well as in-house wiring for interference, and notes that all signals in and out of house are remarkably clean and strong. This error obviously duplicates those being reported here by other customers widely spread out across the US, so I wanted to document the troubleshooting steps and technician interventions that have taken place to date - in the hope of moving the issue forward. 9/6/2007 16:01 3-Critical R005.0 Started Unicast Maintenance Ranging - No Response received - T3 time-out 1/1/1970 0:00 3-Critical D003.0 DHCP WARNING - Non-critical field invalid in response. its why its "up to 600mbps". This issue is with Cox, and not with anything between the street pole and my computer. Confirm that all connections are tight. What do I do? For reference, I have experience this error with three modems: Motorola 6180, 6121, and Cisco 3010. This is a relatively new problem for me. 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