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[AZ] Unreliable HSI service todayI've had numerous periods today of complete loss of internet connectivity here in east Mesa, lasting anywhere between a few seconds and a few minutes. Is anybody else noticing the same thing? I've checked my network equipment and nothing appears to be wrong. |
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| Rakeesh |
Still going on today, getting occasional complete loss of connectivity for up to two minutes at a time.
Going to give cox a call, something tells me that it will be fruitless (I've never had any luck getting intermittent connectivity issues resolved with them before,) but why not. |
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Kixur413 to Rakeesh
Anon
2013-Jan-9 3:45 pm
to Rakeesh
Yeah, we called and they said there was issues but nothing specific. Gilbert, AZ |
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I called them and they said they couldn't find anything wrong. They offered to send a tech out, but I don't want to risk them billing me when they don't find anything wrong (with my luck, nothing will happen while they are here.)
I'm running a performance monitor (egress, ingress, ram, CPU) on my router and everything is just fine during these outages (except of course for 100% packet loss.) |
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to Rakeesh
Ok, well something must be going on.... I am in Surprise, AZ and my connection for the last few days has been very inconsistent. With a wired connection to my Netgear WNDR4500, I am getting ping times over 600ms on Cox's speed test site... Signal levels on my cable modem look ok...
Downstream Bonding Channel Value
Channel ID 203 201 202 204
Frequency 855000000 Hz 843000000 Hz 849000000 Hz 861000000 Hz
Signal to Noise Ratio 37 dB 37 dB 37 dB 37 dB
Downstream Modulation 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 3 dBmV
Upstream Bonding Channel Value
Channel ID 1
Frequency 36100000 Hz
Ranging Service ID 441
Symbol Rate 5.120 Msym/sec
Power Level 47 dBmV
Upstream Modulation [3] QPSK
[3] 64QAM
Ranging Status Success
Signal Stats (Codewords) Bonding Channel Value
Channel ID 203 201 202 204
Total Unerrored Codewords 4007183364 4007207934 4007203654 4007193623
Total Correctable Codewords 34 1076 34 22
Total Uncorrectable Codewords 10220 15054 10241 9871 |
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Here's a dstat log of my most recent outage: ----total-cpu-usage---- -dsk/total- -net/vlan2- ---paging-- ---system-- ----system----
usr sys idl wai hiq siq| read writ| recv send| in out | int csw | time
2 0 98 0 0 0| 0 0 | 250B 537B| 0 0 | 138 25 |09-01 16:30:46
2 1 97 0 0 0| 0 0 | 200B 517B| 0 0 | 137 18 |09-01 16:30:47
2 0 97 0 0 1| 0 0 | 300B 543B| 0 0 | 142 17 |09-01 16:30:48
1 1 98 0 0 0| 0 0 | 250B 234B| 0 0 | 133 18 |09-01 16:30:49
2 1 97 0 0 0| 0 0 | 0 391B| 0 0 | 127 21 |09-01 16:30:50
2 0 97 0 0 1| 0 0 | 0 786B| 0 0 | 129 16 |09-01 16:30:51
0 2 96 0 0 2| 0 0 | 0 576B| 0 0 | 125 13 |09-01 16:30:52
1 1 97 0 0 1| 0 0 | 0 156B| 0 0 | 123 16 |09-01 16:30:53
1 2 97 0 0 0| 0 0 | 0 330B| 0 0 | 153 24 |09-01 16:30:54
2 0 98 0 0 0| 0 0 | 0 587B| 0 0 | 124 16 |09-01 16:30:55
2 0 98 0 0 0| 0 0 | 0 0 | 0 0 | 144 27 |09-01 16:30:56
1 0 99 0 0 0| 0 0 | 0 210B| 0 0 | 129 26 |09-01 16:30:57
1 1 98 0 0 0| 0 0 | 0 617B| 0 0 | 131 17 |09-01 16:30:58
1 1 98 0 0 0| 0 0 | 0 627B| 0 0 | 148 26 |09-01 16:30:59
2 0 98 0 0 0| 0 0 | 0 1149B| 0 0 | 143 18 |09-01 16:31:00
1 1 98 0 0 0| 0 0 | 0 627B| 0 0 | 127 17 |09-01 16:31:01
1 2 96 0 0 1| 0 0 | 0 237B| 0 0 | 160 32 |09-01 16:31:02
2 0 97 0 0 1| 0 0 | 0 506B| 0 0 | 133 17 |09-01 16:31:03
1 1 96 0 0 2| 0 0 | 0 66B| 0 0 | 143 35 |09-01 16:31:04
2 0 98 0 0 0| 0 0 | 0 337B| 0 0 | 142 24 |09-01 16:31:05
2 0 98 0 0 0| 0 0 | 0 547B| 0 0 | 136 20 |09-01 16:31:06
2 0 98 0 0 0| 0 0 | 0 669B| 0 0 | 145 25 |09-01 16:31:07
1 1 98 0 0 0| 0 0 | 0 358B| 0 0 | 121 14 |09-01 16:31:08
1 1 89 0 0 9| 0 0 | 0 5425B| 0 0 | 259 29 |09-01 16:31:09
2 1 97 0 0 0| 0 0 | 0 0 | 0 0 | 121 13 |09-01 16:31:10
1 1 96 0 0 2| 0 0 | 0 156B| 0 0 | 148 30 |09-01 16:31:11
1 6 93 0 0 0| 0 0 | 0 206B| 0 0 | 226 109 |09-01 16:31:12
2 4 94 0 0 0| 0 0 | 0 325B| 0 0 | 209 99 |09-01 16:31:13
1 1 98 0 0 0| 0 0 | 0 240B| 0 0 | 129 22 |09-01 16:31:14
2 0 98 0 0 0| 0 0 | 0 466B| 0 0 | 133 21 |09-01 16:31:15
2 0 98 0 0 0| 0 0 | 0 622B| 0 0 | 136 18 |09-01 16:31:16
0 2 97 0 0 1| 0 0 | 0 672B| 0 0 | 131 19 |09-01 16:31:17
1 1 85 0 0 13| 0 0 | 62k 14k| 0 0 | 314 35 |09-01 16:31:18
0 2 90 0 0 8| 0 0 | 36k 16k| 0 0 | 304 25 |09-01 16:31:19
3 0 94 0 0 3| 0 0 |2839B 1019B| 0 0 | 158 22 |09-01 16:31:20
This is just monitoring vlan2 (the vlan for the WAN port.) Everything remains normal except for ingress traffic just drops out entirely for up to two minutes, in this case 27 seconds. CPU is mostly idle, no heavy disk activity, etc. This tells me that the problem is almost certainly ISP side. |
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Rakeesh
1 edit |
Just occurred to me to test the cable modem by issuing constant echo requests, found a somewhat interesting result. Side by side ping and dstat logs: ping 192.168.100.1 -t -s 1
Timestamp: 192.168.1.1 : 784470
Reply from 192.168.100.1: bytes=32 time=1ms TTL=63
Timestamp: 192.168.1.1 : 785485
Reply from 192.168.100.1: bytes=32 time=1ms TTL=63
Timestamp: 192.168.1.1 : 786501
Reply from 192.168.100.1: bytes=32 time=1ms TTL=63
Timestamp: 192.168.1.1 : 787517
Reply from 192.168.100.1: bytes=32 time=1ms TTL=63
Timestamp: 192.168.1.1 : 788533
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.100.1: bytes=32 time<1ms TTL=63
Timestamp: 192.168.1.1 : 819566
Reply from 192.168.100.1: bytes=32 time<1ms TTL=63
Timestamp: 192.168.1.1 : 820581
Reply from 192.168.100.1: bytes=32 time<1ms TTL=63
Timestamp: 192.168.1.1 : 821597
Reply from 192.168.100.1: bytes=32 time<1ms TTL=63
Timestamp: 192.168.1.1 : 822613
Reply from 192.168.100.1: bytes=32 time<1ms TTL=63
Timestamp: 192.168.1.1 : 823628
Reply from 192.168.100.1: bytes=32 time<1ms TTL=63
dstat -at -N vlan2
----total-cpu-usage---- -dsk/total- -net/vlan2- ---paging-- ---system-- ----system----
usr sys idl wai hiq siq| read writ| recv send| in out | int csw | time
0 2 97 0 0 1| 0 0 | 376B 533B| 0 0 | 155 26 |09-01 17:13:02
2 0 97 0 0 1| 0 0 | 276B 563B| 0 0 | 147 22 |09-01 17:13:03
2 0 98 0 0 0| 0 0 | 476B 963B| 0 0 | 155 17 |09-01 17:13:04
2 0 98 0 0 0| 0 0 | 476B 210B| 0 0 | 137 20 |09-01 17:13:05
1 1 97 0 0 1| 0 0 | 426B 560B| 0 0 | 147 17 |09-01 17:13:06
1 2 97 0 0 0| 0 0 | 476B 782B| 0 0 | 169 28 |09-01 17:13:07
1 1 98 0 0 0| 0 0 | 326B 652B| 0 0 | 165 36 |09-01 17:13:08
1 1 98 0 0 0| 0 0 | 150B 70B| 0 0 | 136 18 |09-01 17:13:09
2 0 97 0 0 1| 0 0 | 0 626B| 0 0 | 145 24 |09-01 17:13:10
2 0 96 0 0 2| 0 0 | 0 0 | 0 0 | 151 27 |09-01 17:13:11
1 1 98 0 0 0| 0 0 | 0 116B| 0 0 | 137 30 |09-01 17:13:12
2 1 97 0 0 0| 0 0 | 0 350B| 0 0 | 137 21 |09-01 17:13:13
1 1 97 0 0 1| 0 0 | 0 454B| 0 0 | 146 31 |09-01 17:13:14
2 0 98 0 0 0| 0 0 | 0 739B| 0 0 | 138 24 |09-01 17:13:15
1 0 98 0 0 1| 0 0 | 0 703B| 0 0 | 137 21 |09-01 17:13:16
2 0 98 0 0 0| 0 0 | 0 337B| 0 0 | 129 15 |09-01 17:13:17
1 1 97 0 0 1| 0 0 | 0 272B| 0 0 | 126 15 |09-01 17:13:18
1 1 98 0 0 0| 0 0 | 0 613B| 0 0 | 132 12 |09-01 17:13:19
2 0 98 0 0 0| 0 0 | 0 401B| 0 0 | 130 20 |09-01 17:13:20
1 1 98 0 0 0| 0 0 | 0 307B| 0 0 | 143 13 |09-01 17:13:21
2 0 95 0 0 3| 0 0 | 0 785B| 0 0 | 172 35 |09-01 17:13:22
1 1 98 0 0 0| 0 0 | 0 862B| 0 0 | 152 21 |09-01 17:13:23
2 0 98 0 0 0| 0 0 | 0 393B| 0 0 | 129 21 |09-01 17:13:24
1 1 98 0 0 0| 0 0 | 0 669B| 0 0 | 137 17 |09-01 17:13:25
2 0 97 0 0 1| 0 0 | 0 459B| 0 0 | 127 17 |09-01 17:13:26
2 0 98 0 0 0| 0 0 | 0 373B| 0 0 | 132 13 |09-01 17:13:27
1 0 98 0 0 1| 0 0 | 0 112B| 0 0 | 116 15 |09-01 17:13:28
2 1 97 0 0 0| 0 0 | 0 237B| 0 0 | 125 25 |09-01 17:13:29
2 0 98 0 0 0| 0 0 | 0 320B| 0 0 | 134 33 |09-01 17:13:30
1 0 97 0 1 1| 0 0 | 0 751B| 0 0 | 141 17 |09-01 17:13:31
1 1 98 0 0 0| 0 0 | 0 393B| 0 0 | 132 28 |09-01 17:13:32
3 0 97 0 0 0| 0 0 | 0 520B| 0 0 | 129 21 |09-01 17:13:33
1 1 98 0 0 0| 0 0 | 0 296B| 0 0 | 133 21 |09-01 17:13:34
2 0 98 0 0 0| 0 0 | 0 592B| 0 0 | 136 24 |09-01 17:13:35
1 0 97 0 1 1| 0 0 | 0 327B| 0 0 | 135 27 |09-01 17:13:36
1 2 97 0 0 0| 0 0 | 0 568B| 0 0 | 130 20 |09-01 17:13:37
2 0 98 0 0 0| 0 0 | 385B 721B| 0 0 | 140 21 |09-01 17:13:38
It's possible the cable modem is at fault, but if other people are experiencing the same problem...hmm. Already been through the regular power cycling and reset with all of my equipment, including the cable modem. This is a Cisco DPC3000 modem. What modem are you guys using? |
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Rakeesh
1 edit |
Cable modem diagnostic page doesn't yield anything useful. Logging in with admin/W2402 isn't useful either (just allows for a non-functioning speedtest page.) Model:DPC3000
Vendor:Cisco
Hardware Revision:2.0
Serial Number:*********
MAC Address::**:**:**:**:**:**
Bootloader Revision:PSPU-Boot 1.0.0.4
Current Software Revision:dpc3000-v303r2391-091106a
Firmware Name:dpc3000-v303r2391-091106a.bin
Firmware Build Time:20091107084049
Cable Modem Status:Operational
Cisco Logo
Downstream Channels
Power Level Signal to Noise Ratio
Channel 0:-8.8 dBmV 36.2 dBmV
Channel 1:-8.1 dBmV 36.4 dBmV
Channel 2:-8.3 dBmV 37.1 dBmV
Channel 3:-8.4 dBmV 37.1 dBmV
Upstream Channels
Power Level
Channel 0:46.3000 dBmV
Channel 1:-0.9000 dBmV
Channel 2:46.3000 dBmV
Channel 3:47.8000 dBmV
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to Rakeesh
I am using a Motorola SB6120. And I have been doing a bunch of speed tests via Cox and these are some of my results...
Wed Jan 09 07:22 PM Yes 1 Mbps 0 Mbps 831 millisec 70.190.123.198 Phoenix
Wed Jan 09 07:21 PM Yes 1 Mbps 0 Mbps 813 millisec 70.190.123.198 Phoenix
Wed Jan 09 07:17 PM Yes 1 Mbps 0 Mbps 99 millisec 70.190.123.198 Phoenix
Wed Jan 09 07:13 PM Yes 3 Mbps 0 Mbps 13 millisec 70.190.123.198 Phoenix
Wed Jan 09 07:12 PM Yes 2 Mbps 0 Mbps 27 millisec 70.190.123.198 Phoenix
Wed Jan 09 07:04 PM Yes 1 Mbps 0 Mbps 654 millisec 70.190.123.198 Phoenix
Wed Jan 09 07:02 PM Yes 3 Mbps 0 Mbps 943 millisec 70.190.123.198 Phoenix
Wed Jan 09 07:01 PM Yes 1 Mbps 0 Mbps 744 millisec 70.190.123.198 Phoenix
Wed Jan 09 07:00 PM Yes 1 Mbps 0 Mbps 871 millisec 70.190.123.198 Phoenix
Wed Jan 09 05:57 PM Yes 13 Mbps 0 Mbps 26 millisec 70.190.123.198 Phoenix
Wed Jan 09 05:41 PM Yes 2 Mbps 0 Mbps 32 millisec 70.190.123.198 Phoenix
Wed Jan 09 05:39 PM Yes 1 Mbps 0 Mbps 823 millisec 70.190.123.198 Phoenix
Wed Jan 09 05:38 PM Yes 2 Mbps 0 Mbps 24 millisec 70.190.123.198 Phoenix
Wed Jan 09 05:37 PM Yes 1 Mbps 0 Mbps 193 millisec 70.190.123.198 Phoenix |
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AnonPhx to Rakeesh
Anon
2013-Jan-9 9:57 pm
to Rakeesh
If you're seeing packet loss to the modem and I assume it's a direct connection that you're either having a fault with the Ethernet cord or the modem itself is faulty. Correlation does not imply causation in regards to other people having the same problem. Fastest and cheapest way would be first try a different Ethernet cord, but those aren't prone to fault unless you have a pet that enjoys eating them. Get another modem. |
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I already tried replacing the cable with a known good cable yesterday, as well as putting that cable through a tester. (I do networking as a career so I have a bunch of tools.)
The modem I have is somewhat flaky. Ever since I bought it (2 years ago?) the internal web server stops working after so long of uptime until you power cycle it. Other than that, it has always worked fine.
Anyways I've had dstat running nonstop, and I've only seen one outage since the last one I posted. The problem may have gone away, I'll check it again tomorrow. |
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I had terrible service yesterday as well. I live in Tempe, around 5th and Mill just west of the train tracks. It appears this morning everything is back to normal. |
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Looks like I haven't seen any more outages (logs running all night long don't show any) whatever it was, it seems fixed now. |
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