Cox → [CT] Cox SSI?

Cox Slow Speed Internet? My connection is currently limiting itself to 400kb/s. It may peak over this every now and then, but it quickly goes right back to 400kb/s. If I try to do anything when the 400kb/s limit is hit, it won't happen. Pings jump to astronomical rates (700-800ms) and websites barely load.

I don't "abuse" the connection at all, is anyone else experiencing this problem in the RI/CT area?

P.S: Recently moved back to CT from FL.., hence the 'location'.

You have too low socket temporary RWIN buffer so try increase bit your RWIN socket buffer to 256000 value to see if that speed increases up, Also be sure to have your window scaling turned enabled in order to use 256000 value beyond 64K buffer.

/applaud, at first sight it looks like the increase in RWIN and the scaling turned on worked.

Now I have a question (I'm not 100% sure it worked, but after the initial reboot - I have a great increase in speeds).

Why wasn't this affecting me originally? I've been back in CT for 3 months and I averaged 1.3-1.8mb/s downloads outside of peak times (like now), then last week the 400kb/s cap started.

After adjusting my RWIN to 256,000 and turning scaling on I'm averaging 950kb/s - 1.3mb/s download, which is a drastic improvement over 400kb/s, but not the original speeds I once achieved.

I do appreciate your quick diagnosis and reply and if you'd be able to provide explanation, I'd greatly appreciate it.

I've got the Premier package in Providence and my speed tests are always in the 17-22MB down and 1-2MB up range.

Okay I have answer to your some question about that, When ping latency increases then speeds get reduces down that RWIN is not changed as default as 64K buffer. Mostly in case that latency gets higher then it makes 64K buffer worthless and won't give higher speeds if there is high latency times. And you are now happy with getting speeds back in normal while you may have high latency in your area or some where on router networks on internet that where high latency existence.

I understand your response, somewhat and I appreciate it.

I've made this change to other computers on the network as well, and after doing so and coming back and testing my speeds again they're back to peaking @ 400kb/s.

I guess the immediate result was just a fluke.

EDIT: On occasion, say a large download of ~100mb it will return to 1.2mb/s quickly every now and then then fade back down to 400 and stay again.

Well, That cable speeds is not guaranteed, That cable networks are sharing. On LAN if you are doing with LAN networking try 128000 value or less for best performance of LAN while your LAN connect to cable internet as I know so far as that cable speeds are not guaranteed. I hope that really helps and also I welcome your comment here if you have any questions of regarding of cable internet sharing of bandwidth.

PS I have very nice of speeds here in kansas I guess that Cox internet in my area are very good performance and less clugging of cable bandwidth.

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heres a speedtest with RWIN at 64240 and scaling off
regardless of what the 4MB troll says. by hiking it that high, you're just setting yourself up even more degraded service levels when packet loss occurs, that whole window must be retransmitted. even a totally untweaked system can do better than 1.2mb/s so the slow speed issue lies ELSEWHERE!
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another system on the network using lots of upload can affect downstream speeds.
what level of service do you have?

Please ignore dvd536 anyway, In your state of CT you may have the high latency environment of broadband networks in your area of CT, However socket RWIN buffer is an temporary store buffer that does not mean to receive or send in respect means. Dvd536 live in AZ state do not facing the high latency environment there but unless if you want move to AZ state as if you want faster speeds cable

I have the premium service. I really miss my Verizon FiOS right about now.. Consistent 3.5mb/s download and consistent 2.0mb/s upload. Downloading COD4 on Steam right now, at a whopping 120kb/s. Good thing I didn't plan on playing tonight!

Check this out, while downloading @ 120kb/s here's my tracert..

1 1 ms 1 ms 1 ms ip68-9-136-224.ri.ri.cox.net [68.9.136.224]
2 255 ms 262 ms 227 ms ip68-9-136-1.ri.ri.cox.net [68.9.136.1]
3 216 ms 157 ms 206 ms 68.9.8.177
4 114 ms 104 ms 144 ms ip68-9-7-1.ri.ri.cox.net [68.9.7.1]
5 94 ms 119 ms 89 ms provdsrj01-ge600.0.rd.ri.cox.net [68.9.14.101]
6 172 ms 176 ms 218 ms dukedsrj02-ge610.tc.at.cox.net [68.1.1.123]
7 182 ms 183 ms 170 ms lkhnsysl02-gex3.at.cox.net [68.1.16.69]
8 116 ms 104 ms 115 ms www.cox.net [68.1.17.9]

Without downloading, my tracert is 5-10ms until the 5th hop, where it becomes 30's the rest of the way.

Pretty impressive to pay so much a month for 1998 DSL.

Also,

Downstream Value
Frequency 747000000 Hz
Signal To Noise Ratio 35.3 dB
Power Level 2.5 dBmV
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

Upstream Value
Channel ID 1
Frequency 26208000 Hz
Power 51.0 dBmV

My signal levels look fine to me, unless I'm drastically mistaken..

That upstream power level is high.
check your splitter(s) for tightness/corrosion and any cabling that might have had its shielding nicked/bad fittings.

It may help to contact Cox, either by phone or through this board and tell them what town you're in, MAC address and so forth. If you've got premium service then you should be seeing something a lot different.

If you could PM me the modem's MAC address I'd be happy to take a look at this for you.