I still experience T3 disconnects daily. Customer tries running system without Wi-Fi router - no effect. Multiple resets of the modem has been of no help. 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. Insane. Line tech replaces box on side of house, line from pole to box, and short run of interior cable from box to modem. Replace interior cables with brand new high quality RG6 if practical. 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. Cox tech support only confirms signal strength to house and confidently ensures me it has to do with my equipment. Understanding Event Logs Customer bypasses all house wiring and connects modem by short length of new coaxial cable directly to the box on the house. 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. I've swapped out splitters, bypassed router, etc. There is a fundamental flaw with the cable company dogma that we see repeated here. Event Log: Unicast Maintenance Ranging. This weekend it has been timing out multiple times an hour. I've gone through the rigamarole of resetting the modem (both by a refresh from the Cox Customer care to … 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. The replaced the ends of the cables and tested the signal. Predictably, the T3 disconnects continued just the same, even with modem and router plugged into battery backup. Internet Forum requires membership for participation - click to join. Confirm that all connections are tight. Repeated dropout of internet connection. At this point, there is nothing more to be done inside the house, as the senior tech acknowledged. Customer escalates issue with Cox - senior field line technician called to the house. No effect - T3 errors still being observed. After hours of calls between … This is a relatively new problem for me. No effect on T3 disconnects. 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 … Customer purchases TWO new, Cox-approved modems and connects each one separately to the box on the house. 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. 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. its why its "up to 600mbps". 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. 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 … 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! For reference, I have experience this error with three modems: Motorola 6180, 6121, and Cisco 3010. I can't come to any conclusion here other than the problem is with Cox's line outside my house. It's been like this ever since we connected (about 8 months ago) but has been getting steadily worse. 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. Forum discussion: I've seemingly had this issue ongoing since I moved in 2 years ago. No effect on T3 disconnects. Remove all unnecessary splitters. 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. With the cable company dogma that we see repeated here technician called the! Pole and my computer while short, are extremely annoying and frequent is. Modem and an Orbi router with satellite purchases two new, Cox-approved modems and connects each one separately to box... 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