Internet Connection Drops Every Hour on The Hour for about 30 seconds
My computer uses a wired connection. This problem just started happening in the last week after doing some Windows Updates. I noticed my internet connection would drop every hour on the hour at :09. Such as 6:09, 7:09, 8:09. etc. It comes back on by itself after about 30 seconds. I did some research on Google and it said to do this: Method 2: Reset Transmission Control Protocol / Internet Protocol (TCP/IP) The reset command is available in the IP context of the NetShell utility. Follow these steps to use the reset command to reset TCP/IP manually: 1. To open a command prompt, click Start and then click Run. Copy and paste (or type) the following command in the Open box and then press ENTER: cmd 2. At the command prompt, copy and paste (or type) the following command and then press ENTER: netsh int ip reset c:\resetlog.txt Note If you do not want to specify a directory path for the log file, use the following command: netsh int ip reset resetlog.txt 3. Reboot the computer." http://answers.microsoft.com/en-us/windows/forum/windows_7-windows_update/internet-disconnects-every-hour-for-a-second-then/92bb822d-112a-4c50-97e7-5f7be1152105?page=1 I followed that and it fixed the problem. However after doing another Windows Update the problem returned and I was losing the internet connection every hour at the :45 mark. I did the procedure again and it stopped losing connection at :45.However I fear it will return. I'm not looking forward to having to do this constantly every time I do a Windows Update, as you know there are almost daily Windows Updates. I logged in my Zoom Cable Modem/Router log and saw the below critical errors. What can you tell from this and what advice can you give to fix the problem?
High Uncorrectable Errors
Hi All, Ive been having really crappy internet for the last few weeks and a check of my modem status page shows the following uncorrectable errors on channels 13, 14 and 15. Cox say they dont see these on their side. Please bear in mind this is in two hours of usage from a reboot. Any recommendations? Standard Specification Compliant ARRIS DOCSIS 3.0 Cable Modem / Retail Hardware Version 3 Software Version 9.1.103AA36 Downstream Bonded Channels Channel Lock Status Modulation Channel ID Frequency Power SNR Corrected Uncorrectables 1 Locked 256QAM 3 795.00 MHz 4.10 dBmV 38.98 dB 1 0 2 Locked 256QAM 1 783.00 MHz 4.70 dBmV 38.98 dB 0 0 3 Locked 256QAM 2 789.00 MHz 4.70 dBmV 38.98 dB 0 0 4 Locked 256QAM 4 801.00 MHz 4.20 dBmV 38.98 dB 4 0 5 Locked 256QAM 9 831.00 MHz 4.60 dBmV 38.98 dB 0 0 6 Locked 256QAM 10 837.00 MHz 4.30 dBmV 38.61 dB 0 0 7 Locked 256QAM 11 843.00 MHz 4.40 dBmV 38.98 dB 1 0 8 Locked 256QAM 12 849.00 MHz 4.20 dBmV 38.61 dB 1 0 9 Locked 256QAM 17 879.00 MHz 3.60 dBmV 38.98 dB 6 0 10 Locked 256QAM 18 885.00 MHz 3.80 dBmV 38.61 dB 3 0 11 Locked 256QAM 19 891.00 MHz 3.90 dBmV 38.61 dB 19 0 12 Locked 256QAM 20 897.00 MHz 4.00 dBmV 38.61 dB 20 0 13 Locked 256QAM 21 903.00 MHz 3.80 dBmV 38.61 dB 63278 558593 14 Locked 256QAM 22 909.00 MHz 3.90 dBmV 38.61 dB 109054 1166810 15 Locked 256QAM 25 927.00 MHz 4.10 dBmV 38.61 dB 81462 719967 16 Locked 256QAM 26 933.00 MHz 3.90 dBmV 38.61 dB 11 0 17 Locked 256QAM 27 939.00 MHz 4.20 dBmV 38.98 dB 14 0 18 Locked 256QAM 28 945.00 MHz 3.70 dBmV 38.98 dB 0 0 19 Locked 256QAM 29 951.00 MHz 3.60 dBmV 38.61 dB 0 0 20 Locked 256QAM 30 957.00 MHz 3.60 dBmV 38.61 dB 0 0 21 Locked 256QAM 33 357.00 MHz 6.20 dBmV 40.37 dB 0 0 22 Locked 256QAM 34 363.00 MHz 6.20 dBmV 40.95 dB 7 0 23 Locked 256QAM 35 369.00 MHz 6.40 dBmV 40.37 dB 0 0 24 Locked 256QAM 36 375.00 MHz 6.30 dBmV 40.37 dB 3 0 25 Locked 256QAM 37 381.00 MHz 6.40 dBmV 39.90 dB 0 0 26 Locked 256QAM 38 387.00 MHz 6.30 dBmV 39.90 dB 0 0 27 Locked 256QAM 41 405.00 MHz 6.40 dBmV 39.90 dB 0 0 28 Locked 256QAM 42 411.00 MHz 6.60 dBmV 39.90 dB 0 0 29 Locked 256QAM 43 417.00 MHz 6.40 dBmV 39.90 dB 0 0 30 Locked 256QAM 44 423.00 MHz 6.50 dBmV 39.90 dB 0 0 31 Locked 256QAM 45 429.00 MHz 6.20 dBmV 40.40 dB 0 0 32 Locked 256QAM 46 435.00 MHz 6.30 dBmV 39.90 dB 0 0 Upstream Bonded Channels Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 1 Locked ATDMA 2 5120 kSym/s 23.50 MHz 40.25 dBmV 2 Locked ATDMA 4 5120 kSym/s 36.30 MHz 42.25 dBmV 3 Locked ATDMA 3 5120 kSym/s 29.90 MHz 40.25 dBmV 4 Locked ATDMA 1 5120 kSym/s 16.90 MHz 40.25 dBmV
Frequent internet disconnects/modem reboots due to bad signal
Hey all, I'm specifically looking for someone higher up at Cox to help me out here. I just moved into a new apartment with my girlfriend and signed up for a 100/10 internet plan. I bought a brand new Netgear CM600 cable modem and a router and set them up when we moved in and provisioned the modem and all seemed good, but I noticed our downstream power levels were a bit strange; the first 16 channels were ~18 dBmV and the last 8 were ~ -17 dBmV. I did some research and seems like these levels are supposed to be around 0, with a range of -10 to 10 dBmV. No problem, I'm an engineer at a satellite communications company and have plenty of attenuators at work. Grabbed a few and have been experimenting with different values, got the levels to 7 dBmV but we were still getting a ton of correctables on the downstream channels and frequent disconnects. I caved and had a technician come by today but right off the bat I knew he wasn't going to be too helpful. He switched out the coaxial cable to the modem and put an attenuator on it, then showed me on his phone that all the downstream channels were green and had "stabilized". I asked if he could take a look at the connections to the apartment but he refused. It's been ~6 hours since he's left and we're still having disconnects and the modem is rebooting. Find screenshots of my power levels and event logs below, about half an hour after manually rebooting the modem. I was going to wait a couple days before scheduling another tech visit but I don't want to go through this process again when there's a chance of getting another tech who isn't going to do anything I haven't already done. I know it's not the tech's fault, so I was still very polite to him, but I really need this issue to be resolved ASAP! So please, if there are any Cox employees on here who would be able to help me look into this, I'd be very appreciative 🙂 Thank you so much in advance!
