Arris SBG8300 Upstream QAM Speeds.
I bought an Arris SBG8300 modem/router in one last June and upgraded to Gigablast. We've had several Cox techs to the house to narrow down the root cause of slow speed and intermittent connectivity issues we have. We have a new large gauge wire (11?) from the post in our yard to our house. From there it is a direct line (no splitters) to our Arris. So . I ran a speed test hard wired to the modem/router. Here are the result (23 DL, 33 UL...on gigablast 😞 https://www.speedtest.net/result/11076560076 When contacting Arris about the issue they seemed adamant that the Upstream power levels were the issue (all five approximately 34dbmv) as they are well below the minimum recommended of 45dbmv. They way I understand it, Cox should be telling the modem what upstream power it expects, so the issue could be that this specific model was spec'd out incorrectly in Cox's system. I say this after having had the issue with two of these same Arris's since last June coupled with the fact that the tech who saw this modem tonight acted like I had exposed electrical wires (anecdotal, but techs see a lot of different hardware, so I think there's possibly some good reason for his reaction). What're the forum's thoughts? I don't want to just buy more hardware as I have a hefty sum invested in this one and Arris is not exactly making it easy to get a refund. Thanks, Jamie2.4KViews0likes7Comments
Coaxial cable wiring resources & Question
Hi all. I'm currently staying in a home that has been in my family for a few generations. I've been encountering issues with my internet connection recently that is leading me to believe that the wiring with the coaxial cable may require inspection and adjustment. The upstream LED flashes during boot up, and the modem goes offline to reconnect after 30 minutes of connection. A look at the status page of the model display this as the upstream variables: Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 2 Locked ATDMA 4 5120 kSym/s 38.40 MHz 57.00 dBmV Downstream appears fine but I can provide those if helpful. The coaxial cable was installed through the crawl space of the home and as of right now I'm not clear on the layout of the wiring job. I'm willing to believe the wiring was done in an effort to quickly have it done and over with. I am nota Cox Complete Care customer and I'm not certain if the cost would be worth while to have someone come and re-work the line so I can maintain solid connect.Would anyone be able to say if paying for the service would help the issue or would it be better to do-it-myself. Also are their any solid resources available that may help me with the job of ensuring the line going to the modem is good?2.8KViews1like6Comments
Random upstream power spikes / Internet drops
I'm getting random internet drops due to fluctuating upstream power levels. Most of the time my upstream levels are fine (4 channels between 38-48db). 3-4 times a day at random times they will jump into the upper 50s and the internet times out for a few minutes, then the power levels return to normal. This is very annoying because me and my family due alot of online gaming with party chat on xbox and it cuts me off from everyone and disconnects me from the game. I have tried many different combinations of amps and/or splitters on the main coax line coming into the house to get the signal levels right and its always the same issue with the upstream power so i dont think its a problem on my end. I have a CM1000 modem.2.1KViews0likes3Comments
Only 1 Up Channel Bonded & 51-55 Upstream / Bad Wiring or Buy Modem?
Modem: Netgear C3700-100NAS Connection: No spitters in the house. No TV. Modem combo is connected directly to the coax coming from the wall. Coax from wall is closest to the outside connection. Problem: I'm having some ongoing issues with my modem requiring frequent resets. I believe these problems to berelated tomy 51-55 dBmv and my only one locked bonded upstream channel. I believe this is a line problem, and not a modem problem Attempted Solution: Cox tech acknowledged my 51-55dBmv. The tech suggested that i buy a new modem because mine was more than 3 years old. I will post excerpts of this chat log below. Thetech offered to send a rented one to me. However, I discovered he modem came with a $20 self installation fee, so I refused this option. If the modem was the problem, i would rather usethat $20 to buy a NetgearCM600 or an Arrissb6183 and mate it to an Archer C or A7. Question: Does the tech's suggestion to buy a modem sound right to you?7.7KViews0likes0CommentsDaily Motorola modem reboots, T3 timeouts, upstream power level issue?
I've been looking through posts on this forum and elsewhere over the last couple weeks and it appears I may have a similar issue as many others where my Motorola SB6141 modem reboots itself due to T3 Timeout errors. I attempted to contact Cox through email and got the usual canned response about rebooting, clearing cookies, etc. I don't think the responder even read my email. I'm posting here now since it appears there are better responses to problems like this, at least from @TiffanyR and @DerrickW. Based on my observation, my upstream power levels increase to 52 - 54 dBvM around the time of these errors, and then drop down to 48-50 dBvM through the rest of the day. I have no splitters in line. The cable is new and well-connected. Below are relevant logs from the last two days, and a current snapshot of my signal page (while the modem is running). Please let me know what I can do to alleviate this issue. Time Priority Code Message 6/20/2015 10:48:28 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:48:28 3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:46:44 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:46:43 3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:28:01 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:27:32 3-Critical R06.0 Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:27:32 3-Critical R03.0 Ranging Request Retries exhausted;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:27:31 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:27:17 3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:27:16 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:27:02 3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:18:46 6-Notice I401.0 TLV-11 - unrecognized OID;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:18:46 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 1/1/1970 0:00:22 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 1/1/1970 0:00:15 6-Notice N/A Cable Modem Reboot due to T4 timeout ;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:18:00 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:18:00 3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:17:45 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:17:45 3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/20/2015 10:17:30 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:57:14 6-Notice I401.0 TLV-11 - unrecognized OID;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:57:14 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 1/1/1970 0:00:15 6-Notice N/A Cable Modem Reboot due to T4 timeout ;CM-MAC=[omitted];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:56:28 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:56:28 3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:56:22 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:56:16 3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:56:07 3-Critical R06.0 Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:56:07 3-Critical R03.0 Ranging Request Retries exhausted;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:56:06 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:45:14 6-Notice I401.0 TLV-11 - unrecognized OID;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:45:14 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 1/1/1970 0:00:15 6-Notice N/A Cable Modem Reboot due to T4 timeout ;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:44:30 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:44:30 3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:44:15 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:44:15 3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:44:00 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:44:00 3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; 6/19/2015 10:43:45 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=[omitted];CMTS-MAC=[omitted];CM-QOS=1.1;CM-VER=3.0; SIGNAL INFO Downstream Bonding Channel Value Channel ID 121 122 123 124 129 130 131 132 Frequency 813000000 Hz 819000000 Hz 825000000 Hz 831000000 Hz 861000000 Hz 867000000 Hz 873000000 Hz 879000000 Hz Signal to Noise Ratio 37 dB 37 dB 37 dB 37 dB 37 dB 38 dB 36 dB 36 dB Downstream Modulation QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 Power Level The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading -4 dBmV -4 dBmV -4 dBmV -5 dBmV -6 dBmV -6 dBmV -7 dBmV -7 dBmV Upstream Bonding Channel Value Channel ID 3 1 2 4 Frequency 23300000 Hz 36300000 Hz 29800000 Hz 18400000 Hz Ranging Service ID 49 49 49 49 Symbol Rate 5.120 Msym/sec 5.120 Msym/sec 5.120 Msym/sec 2.560 Msym/sec Power Level 48 dBmV 50 dBmV 49 dBmV 48 dBmV Upstream Modulation [3] 16QAM [3] 64QAM [3] 16QAM [3] 64QAM [3] 16QAM [3] 64QAM [3] 16QAM [3] 64QAM Ranging Status Success Success Success Success Signal Stats (Codewords) Bonding Channel Value Channel ID 121 122 123 124 129 130 131 132 Total Unerrored Codewords 130449138 129742962 129751152 129758812 129732938 129732353 129734139 129736247 Total Correctable Codewords 17 12 8 5 18 20 194 77 Total Uncorrectable Codewords 602 542 541 1449 1508 1600 1506 5834.6KViews0likes7Comments
Only 1 Up Channel Bonded & 51-55 Upstream / Bad Wiring or Buy Modem?
Modem: Netgear C3700-100NAS Connection: No spitters in the house. No TV. Modem combo is connected directly to the coax coming from the wall. Coax from wall is closest to the outside connection. Problem: I'm having some ongoing issues with my modem requiring frequent resets. I believe these problems to berelated tomy 51-55 dBmv and my only one locked bonded upstream channel. I believe this is a line problem, and not a modem problem Attempted Solution: Cox tech acknowledged my 51-55dBmv. The tech suggested that i buy a new modem because mine was more than 3 years old. I will post excerpts of this chat log below. Thetech offered to send a rented one to me. However, I discovered he modem came with a $20 self installation fee, so I refused this option. If the modem was the problem, i would rather usethat $20 to buy a NetgearCM600 or an Arrissb6183 and mate it to an Archer C or A7. Question: Does the tech's suggestion to buy a modem sound right to you?