why is my internet so slow

[JamieLee2k]

TCP options string = 020405b40103030201010402

MTU = 1500
MTU is fully optimized for broadband.

MSS = 1460
Maximum useful data in each packet = 1460, which is equal to MSS.

Default Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 bits
Unscaled Receive Window = 64240
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
513920 (MSS x 44 * scale factor of 8)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 49 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

Have SG's web tweak and I am running Win XP Pro, AMD 1.4GHz, 256 DIMM RAM

[earthmofo]

Everything looks ok. Take a speed test and post the results. Also, check to see if you have any packet loss.

[JamieLee2k]

Your download speed : 413340 bps, or 413 kbps.
Browsers would show : about a 50.4 k/sec transfer rate.
Your upload speed : 115323 bps, or 115 kbps.

Remember I am in the UK and I used http://chi.speakeasy.net/ to do my test. My connection is fastest my ISP does 512/128

[earthmofo]

Try finding a speed test in the UK here http://www.testmyspeed.com/internationalspeedtests.htm

The ones for the UK are at the bottom of the page.

[JamieLee2k]

http://website.lineone.net/~speed-tests/testpage.htm - This page was loaded in 111.157 seconds. Your throughput - 4340 cps

http://test.besb.co.uk/cabletest.shtm - Loaded 2,031K bytes in 33.64 seconds. Your throughput is 495 Kbps.

http://www.numion.com/YourSpeed/Checkup.php3?L=uk - Throughput - 39664 - Modem speed - 357 kbps

[earthmofo]

When did you notice your speed had slowed down. Were you getting good speeds with the settings you have now?

Check to see if you have any packet loss.

[JamieLee2k]

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

tracert speedguide.net

Tracing route to speedguide.net [161.58.189.81]
over a maximum of 30 hops:

1 10 ms 8 ms 14 ms 172.23.59.254
2 8 ms 10 ms 9 ms war-cam1-a-fa00.inet.ntl.com [62.254.129.49]
3 12 ms 9 ms 10 ms oxf-core-a-pos1000.inet.ntl.com [62.254.128.137]
4 17 ms 18 ms 38 ms lee-bb-a-atm010-228.inet.ntl.com [62.253.185.2]
5 23 ms 24 ms 62 ms pop-bb-b-so-100-0.inet.ntl.com [62.253.185.238]
6 24 ms 28 ms 29 ms gfd-bb-a-so-500-0.inet.ntl.com [213.105.172.137]
7 27 ms 27 ms 25 ms above-ntl-stm16-2.lhr1.above.net [208.185.188.29
8 26 ms 32 ms 29 ms core2-lhr1-stm16.lhr3.above.net [208.185.156.2]
9 130 ms 130 ms 130 ms lga1-lhr3-stm64.lga1.above.net [64.125.31.182]
10 136 ms 132 ms 132 ms iad1-lga1-oc192.iad1.above.net [208.184.233.65]
11 132 ms 153 ms 135 ms core3-core5-oc48.iad1.above.net [208.185.0.149]
12 178 ms 133 ms 133 ms p1-.mfn.mclnva01.us.bb.verio.net [209.133.31.106]
13 134 ms 135 ms 141 ms p4-6-2-0.r00.stngva01.us.bb.verio.net [129.250.2.146]
14 141 ms 133 ms 136 ms ge-4-1.c00.stngva01.us.ah.vwh.net [129.250.27.184]
15 134 ms 136 ms 132 ms 161.58.156.173
16 138 ms 134 ms 136 ms 161.58.189.81

Trace complete.

ping speedguide.net

Pinging speedguide.net [161.58.189.81] with 32 bytes of data:

Reply from 161.58.189.81: bytes=32 time=138ms TTL=239
Reply from 161.58.189.81: bytes=32 time=137ms TTL=239
Reply from 161.58.189.81: bytes=32 time=135ms TTL=239
Reply from 161.58.189.81: bytes=32 time=138ms TTL=239

Ping statistics for 161.58.189.81:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 135ms, Maximum = 138ms, Average = 137ms

[earthmofo]

Great ping times to the US from the UK :) Try changing the RWIN to 51100. It's a very fast value. Make sure to reboot. Check the SG Analyzer to be sure the changes took place then do a speed test to see if it helped.

[JamieLee2k]

Should I use any of the "CCS" tweaks you get with Cablenut4.08

[earthmofo]

You don't have to. The SG patch is the best overall tweak I think. You should save your current settings to a .css file however. If you decide to try tweaking the RWIN value and it doesn't work out then just load your custom .css file to revert back.

[JamieLee2k]

after I did what you told me to do:

TCP options string = 020405b40103030001010402

MTU = 1500
MTU is fully optimized for broadband.

MSS = 1460
Maximum useful data in each packet = 1460, which is equal to MSS.

Default Receive Window (RWIN) = 51100
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 51100
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
513920 (MSS x 44 * scale factor of 8)
256960 (MSS x 44 * scale factor of 4)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 2044 kbps (255.5 KBytes/s) @ 200ms
Your RcvWindow limits you to: 817.6 kbps (102.2 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 49 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

[EvilAjax]

Going faster?

[JamieLee2k]

little but whenever I install patches it goes fast for a bit then slows down.