Recent Discussions
SYNC Timing Synchronization failure - Loss of Sync - Slow Speeds, Drops, etc
Hello, I have the "Ultimate" Internet tier and over the last few days, my service has been atrociously bad. There are times when I get close to the speeds I am paying for and other times not even close. I was wondering if my power levels on my modem were in-spec? Also, seeing quite a few of the following log messages in my modem: SYNC Timing Synchronization failure - Loss of Sync Started Unicast Maintenance Ranging - No Response received - T3 time-out MDD message timeout Downstream Bonded Channels Channel Lock Status Modulation Channel ID Frequency Power SNR Corrected Uncorrectables 1 Locked QAM256 22 909000000 Hz 8.7 dBmV 39.0 dB 164583 338195 2 Locked QAM256 1 783000000 Hz 10.2 dBmV 39.9 dB 0 0 3 Locked QAM256 2 789000000 Hz 10.2 dBmV 39.8 dB 0 0 4 Locked QAM256 3 795000000 Hz 10.0 dBmV 39.7 dB 0 0 5 Locked QAM256 4 801000000 Hz 10.1 dBmV 39.8 dB 0 0 6 Locked QAM256 5 807000000 Hz 10.0 dBmV 39.8 dB 0 0 7 Locked QAM256 6 813000000 Hz 9.9 dBmV 39.8 dB 0 0 8 Locked QAM256 7 819000000 Hz 9.9 dBmV 39.8 dB 0 0 9 Locked QAM256 8 825000000 Hz 10.0 dBmV 39.9 dB 0 0 10 Locked QAM256 17 879000000 Hz 9.5 dBmV 39.5 dB 4 0 11 Locked QAM256 18 885000000 Hz 9.4 dBmV 39.4 dB 1 0 12 Locked QAM256 19 891000000 Hz 9.2 dBmV 39.3 dB 3 0 13 Locked QAM256 20 897000000 Hz 9.2 dBmV 39.3 dB 2 0 14 Locked QAM256 21 903000000 Hz 8.4 dBmV 39.0 dB 182726 774664 15 Locked QAM256 23 915000000 Hz 9.0 dBmV 39.0 dB 201227 812336 16 Locked QAM256 24 921000000 Hz 8.9 dBmV 38.8 dB 612277 1054773 Upstream Bonded Channels Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 1 Locked ATDMA 2 5120 Ksym/sec 23300000 Hz 37.7 dBmV 2 Locked TDMA and ATDMA 1 2560 Ksym/sec 18400000 Hz 38.3 dBmV 3 Locked ATDMA 3 5120 Ksym/sec 29800000 Hz 39.8 dBmV 4 Locked ATDMA 4 5120 Ksym/sec 36300000 Hz 41.3 dBmV Current System Time:Sat Oct 14 11:56:41 2017
Cell phone signal drops internet connection
Hello, I have the weirdest issue here. I have Cox internet 300mbs down- but it only works if there are no cell phones in the house. The internet is super fast, but when a cell phone is in the house the signal will go in and out. If the phones that are in the house are in Airplane mode the internet works perfectly- but as soon as you take them off airplane mode it will start to drop in and out. If the phones are on the wifi and in airplane mode it works... just when there is a cell signal in the house. I have even tried using a modem that is a "modem only" with no router and just hardwire it to the PC- it's brand new, but when I turn my phone off airplane mode it cuts in and out. I don't know what to do... this is such a weird issue that Cox has been out a few times and can't solve it. They have tried to clean the lines and we have replaced the modem 3 times- I just went out and got another one and it doesn't work. HELP! is there a setting that I am missing that will help with this? anyone have an idea? Thanks- I hope there is someone out there that can fix this.
Internet Speed Much Lower than 100Mbps and Drops Dramatically
I currently have the up to 100Mbps package with Cox but my speeds never seem to get even remotely to that speed. I can usually get 20-25Mbps on a wired connection using a router, but roughly 4-5 times a day the speed drops dramatically down to 5 Mbps or lower. Sometimes it will go down as low as >1Mbps and become pretty much unusable for streaming or gaming, which are the main reasons I have the service. Other times my modem will lose connection and the internet will drop completely. I do not have any issues with the modem or router, it is definitely on Cox's end. I'm not as concerned about reaching top speed as I am getting usable speeds for streaming and gaming on a consistent basis. Any answers or help with this issue is much appreciated.
Question about OpenDNS
Being as I have teenagers and I want our home Internet to be safe I have tried using OpenDNS. We have had Cox service for years and was able to use OpenDNS with absolutely no trouble on our old modem. However after moving recently and upgrading to the supposedly fastest cable modem available, Arris Touchstone TG2472, and logging in to the router I manually assigned the DNS addresses I want under both the IPv4 and IPv6, but OpenDNS still is not working. Under the 'utilites' tab I notice under WAN settings the old DNS settings provided by Cox are still listed there, but can't be altered from that screen, and under the direct WAN settings there is nowhere to adjust DNS settings, only under the LAN. I called Cox tech support and was told now that the DNS addresses are dynamically assigned and we as customers are no longer allowed to change them. Really Cox? If that's the case why on my old modem did I have no trouble with this? I hope this young man was mistaken, and if there is a way to get OpenDNS working on this particular cable modem I would like to know asap please. If not that is pretty shoddy customer service because we should have the option of what DNS servers we want to use, especially when we have children in the home.
Multiple Errors on my Docsis 3.0 model with Cox
I have noticed some speed issues with my Cox Internet connection so I logged in to look at the logs on the modem and found the following errors which are repeating every day. Before I call support and get told nothing is wrong I was hoping for some expert direction from the collective within the forum. Apr 13 2017 07:17:29 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 07:12:30 3-Critical R06.0 Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 07:12:30 3-Critical R03.0 Ranging Request Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 07:12:15 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 07:11:45 3-Critical R06.0 Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 07:11:45 3-Critical R03.0 Ranging Request Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 07:11:30 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 07:10:15 3-Critical R06.0 Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 07:10:15 3-Critical R03.0 Ranging Request Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 07:09:45 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 06:56:33 3-Critical R06.0 Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 06:56:33 3-Critical R03.0 Ranging Request Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 06:56:18 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 06:55:48 3-Critical R06.0 Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 06:55:48 3-Critical R03.0 Ranging Request Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 06:55:33 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 06:54:18 3-Critical R06.0 Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 06:54:18 3-Critical R03.0 Ranging Request Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 06:53:48 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0; Apr 13 2017 06:40:36 3-Critical R06.0 Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=d0:39:b3:f8:ed:dd;CMTS-MAC=00:1b:54:c9:87:c7;CM-QOS=1.1;CM-VER=3.0;
INTERNET NOT STAYING CONNECTED
This has happened a lot in the past two weeks...it will show I have a connection but I don't. Then it will disconnect, and eventually my phone will be dead also...I reboot, I've done everything I could think of to make it stop but it still does it at least four or five times a day...can you please help?High Correctables Per Day
For the last several weeks or so, I've rack up an average of 2000 of correctables per day. A few times, my modem went offline after midnight. I've gone through to make sure all connections are tight. I have no splitters on my line. My modem has only been online for about 5 hours and already correctables are in the hundreds. Is there anything else on my end that I can check?
