mattlqx
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Joined 2 years ago
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Re: Poor and unstable upload speeds
To close the loop on this. A tech came out again about a week ago (last Wednesday) and verified everything was fine from the street to the house. She opened a ticket to the OSP for packet loss. Lo and behold I haven't had any issues with packet loss since. Another tech showed up yesterday out of the blue, I assume in response to that ticket and looked at the traffic levels in the neighborhood and said there was congestion on the network and he submitted a ticket to split the lines (not sure the technical term), which would take some time. Regardless, service is good enough for me at the moment as long as that giant loss doesn't return. For others experiencing this, you have to be persistent and keep calling for techs until its escalated or you get a good tech with connections on the engineering side (the last lady that came out said she was talking to some of her contacts and she was great).4Views1like2CommentsRe: Poor and unstable upload speeds
The issue started reoccurring again at 12:45pm and still continues now about 2 hours later. Sent a follow up email as well. Not sure if this is helpful, but this is what the modem says at the moment. Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables 5 Locked QAM256 807000000 Hz 2 dBmV 43 dB 0 0 1 Locked QAM256 783000000 Hz 2 dBmV 43 dB 152 419 2 Locked QAM256 789000000 Hz 2 dBmV 43 dB 103 150 3 Locked QAM256 795000000 Hz 2 dBmV 43 dB 155 395 4 Locked QAM256 801000000 Hz 2 dBmV 43 dB 148 393 6 Locked QAM256 813000000 Hz 2 dBmV 43 dB 169 415 7 Locked QAM256 819000000 Hz 2 dBmV 43 dB 188 369 8 Locked QAM256 825000000 Hz 2 dBmV 43 dB 130 431 9 Locked QAM256 831000000 Hz 2 dBmV 43 dB 167 435 10 Locked QAM256 837000000 Hz 2 dBmV 43 dB 206 416 11 Locked QAM256 843000000 Hz 2 dBmV 43 dB 176 428 12 Locked QAM256 849000000 Hz 2 dBmV 43 dB 197 416 13 Locked QAM256 855000000 Hz 2 dBmV 43 dB 198 423 14 Locked QAM256 861000000 Hz 2 dBmV 43 dB 183 456 15 Locked QAM256 867000000 Hz 2 dBmV 43 dB 168 395 16 Locked QAM256 873000000 Hz 2 dBmV 43 dB 129 190 17 Locked QAM256 879000000 Hz 2 dBmV 43 dB 208 214 18 Locked QAM256 885000000 Hz 2 dBmV 43 dB 153 209 19 Locked QAM256 891000000 Hz 2 dBmV 42 dB 131 298 20 Locked QAM256 897000000 Hz 2 dBmV 42 dB 151 349 21 Locked QAM256 903000000 Hz 2 dBmV 42 dB 124 360 22 Locked QAM256 909000000 Hz 2 dBmV 42 dB 56 148 23 Locked QAM256 915000000 Hz 2 dBmV 42 dB 128 286 24 Locked QAM256 921000000 Hz 2 dBmV 42 dB 6393 1487 25 Locked QAM256 927000000 Hz 3 dBmV 43 dB 40423 22085 26 Locked QAM256 933000000 Hz 3 dBmV 43 dB 14505 4667 27 Locked QAM256 939000000 Hz 3 dBmV 43 dB 1415 2988 28 Locked QAM256 945000000 Hz 3 dBmV 43 dB 2007 3134 29 Locked QAM256 951000000 Hz 3 dBmV 43 dB 1976 4568 30 Locked QAM256 957000000 Hz 4 dBmV 43 dB 1823 4873 31 Locked QAM256 963000000 Hz 4 dBmV 43 dB 1820 5063 32 Locked QAM256 969000000 Hz 4 dBmV 43 dB 1928 3997 159 Locked OFDM PLC 300000000 Hz 1 dBmV 43 dB 2184321574 47504 Upstream Bonded Channels Channel ID Lock Status US Channel Type Frequency Width Power 1 Locked SC-QAM 17700000 Hz 6400000 41.3 dBmV 2 Locked SC-QAM 24100000 Hz 6400000 41.0 dBmV 3 Locked SC-QAM 30500000 Hz 6400000 41.3 dBmV 4 Locked SC-QAM 36900000 Hz 6400000 41.0 dBmV 6 Locked SC-QAM 12900000 Hz 3200000 41.0 dBmV0Views0likes1Comment- 14Views0likes0Comments
Re: Poor and unstable upload speeds
A tech came out just now and didn't see too much in the way of issues from my modem, but his diagnostic tool was slow to load. Went out to the street and said he replaced a fitting that looked pretty old and when he came back in said the diag tool loaded as he would normally expect it. We'll see if I get any further issues in the next day or two (last occurrence was last night from 8-11PM).85Views1like0CommentsRe: Poor and unstable upload speeds
I'm largely in the same boat here. I have random periods of light or heavy packet loss. It used to be about 2%, now the past few days it's been 20% at times. They've come out and tested my line which has a strong signal. I've wired a laptop directly into the modem and it's shown the same packet loss (aka not any switch or router issue). I've tried to convince Cox support that there's an IP level issue inside their network as the packet loss starts at the next hop beyond my modem (their concentrator) but they just insist it's my modem or device. Even with 20% packet loss, the downstream is okay, 600mbits out of 1gbit, but the upstream is abysmal at 1-2mbits. I've also replaced my modem for the heck of it, no change. I have graphs for TCP connection times to my server in EC2, packet loss to my next hop, but nobody qualified enough to look at it within Cox. It's pretty sad. Not to be that guy, but I know what I'm talking about (been doing this stuff for 30 years) andtrying to get beyond tier 1 support seems pretty impossible. I don't want to waste more hours waiting through the same basic questions for them to tell me it's my gear. I just keep hoping that someone in Net Eng wakes up and figures out their issues. (the spike of 100% loss was resetting my modem)32Views2likes13CommentsRe: Class B WAN IP Assignment
It's actually a CIDR (Classless Inter Domain Routing) mask. Way back when, classful networks were doled out on the byte boundary, e.g. 255.0.0.0 (Class A), 255.255.0.0 (Class B), 255.255.255.0 (Class C) but as the number of autonomous networks grew on the internet, there was a need to segment those networks further and that's where this comes in. 255.255.248.0 is also known as a /21 (meaning there's 21 bits in the network portion of the address). It contains 8 "Class C" aka /24 subnets. All this is to say, it's just a larger subnet that Cox has segmented for your particular area or concentrator. It has no bearing on performance aside from being in a larger broadcast domain (but broadcasts are probably restricted in someway on thenetwork between devices anyway).8Views0likes1Comment