Firefox Problem

[wassupjg]

Hi,

When I first installed TCP/IP Optimizer on my laptop, my 8 Mbps connection more than doubled as seen from a speed test - my wireless card settings must have been previously inhibiting the speed from the router somehow. However, a few months later, I now seem to be getting much slower speeds half the time, where an Internet page would often take ages to load, then not load at all - page cannot be displayed error appears. I usually use Firefox, and when opening IE, the problem never seems to occur, and the same problem pages would load very fast with no issue. I've checked for spyware and viruses.

Below are my analyser results:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 03.25.2008 12:36
IP address: 90.192.xx.xxx

TCP options string: 020405b40103030301010402
MSS: 1460
MTU: 1500
TCP Window: 513920 (multiple of MSS)
RWIN Scaling: 3
Unscaled RWIN : 64240
Reccomended RWINs: 64240, 128480, 256960, 513920
BDP limit (200ms): 20557kbps (2570KBytes/s)
BDP limit (500ms): 8223kbps (1028KBytes/s)
MTU Discovery: ON
TTL: 43
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

I appreciate any help.

[trogers]

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1500
TTL - 64
TCP Receive Window - 256960
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - checked
Timestamps - uncheck

Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 20
LocalPriority - 1
Host Priority - 1
DNSPriority - 1
NetbtPriority - 1
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 80
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768
Then select "Apply Changes" and reboot to take effect

[trogers]

Also check the FireFox settings (about:config) for

Max. connections - 24
Max. connections per server - 8
Max. persistent connections per server - 2
Max. persistent connections per proxy - 4

Some websites will reject too high a setting.

[safar88]

Halo troger....
plz me me with this TCP analyzer...

« SpeedGuide.net TCP Analyzer Results »
Tested on: 03.25.2008 22:45
IP address: 124.13.xx.xx

TCP options string: 020405a00103030001010402
MSS: 1440
MTU: 1480
TCP Window: 63888 (NOT multiple of MSS)
RWIN Scaling: 0
Unscaled RWIN : 63888
Reccomended RWINs: 63360, 126720, 253440, 506880
BDP limit (200ms): 2556kbps (319KBytes/s)
BDP limit (500ms): 1022kbps (128KBytes/s)
MTU Discovery: ON
TTL: 49
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

Thank 4 ur attention...

[wassupjg]

Hi trogers, thanks for your replies.

I changed the settings and will see if they solve the issue. I also forgot to mention before that I had used the program FireTune for Firefox before to try and solve the problem.

[wassupjg]

So far so good. I also used some tweaks as suggested in this website http://ubuntuforums.org/showthread.php?t=10339

Cheers trogers.

[Philip]

You may want to check these settings for Firefox as well (some overlap with what you've already done):

http://www.speedguide.net/read_articles.php?id=2448

[wassupjg]

Thanks Philip.

[Philip]

Your initial issue, that pages load partially, or not at all can be related to the Firefox tweaking.

If you set the concurrent connections to a server to a very high number (over 8), some web servers may drop additional connections, causing retransmissions/incomplete pages.

This would also explain the fact it only affects Firefox, if you tweaked it using very aggressive settings.

[wassupjg]

Hi Philip,

I think I had maybe changed a setting before, due to seeing some suggestion online, which explains why Internet Explorer never seemed to be affected.

[wassupjg]

Hi,

I seem to be experiencing issues again, having downloaded and enabled the settings (plus Internet settings) of the program TuneXP on my main desktop pc - which has experienced no problems, and this laptop, which receives a wireless Internet connection. The issue is with the laptop only.

I disabled the effects of TuneXP for each setting, and ran TCP Optimizer again, but the problem remains. Both Firefox and IE suffer - I register a broadband speed test result of 83 kbps, when I used to get at least 5000 kbps, having a 8 Mbps Internet connection.

Below are the analyzer results:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 10.02.2008 14:11
IP address: 90.192.xx.xx

TCP options string: 020405b40103030201010402
MSS: 1460
MTU: 1500
TCP Window: 256960 (multiple of MSS)
RWIN Scaling: 2 bits (2^2=4)
Unscaled RWIN : 64240
Recommended RWINs: 64240, 128480, 256960, 513920, 1027840
BDP limit (200ms): 10278kbps (1285KBytes/s)
BDP limit (500ms): 4111kbps (514KBytes/s)
MTU Discovery: ON
TTL: 54
Timestamps: OFF
SACKs: ON
IP ToS: 01010000 (80)
Precedence: 010 (immediate)
Delay: 1 (low delay)
Throughput: 0 (normal throughput)
Reliability: 0 (normal reliability)
Cost: 0 (normal cost)
Check bit: 0 (correct)
DiffServ: AF22 010100 (20) - Assured Forwarding class 2, medium drop precedence (RFC 2597).


I appreciate any help.

[Rollingstone]

Test your speed at http://speedtest.net (closest and several servers nearby)

[wassupjg]

I get d/l speeds of 3603 kbps and u/l of 347 kbps.

I realise the issue may be with the wireless connection, as the connection has been connecting and disconnecting. My wireless connection, "kangaroo", would disconnect and connect again, with the Wireless Network Connection tray notification showing connection to "kangaroo(unsecured)". I think it must be timing out.

Would appreciate if anyone could let me know what settings I need to correct to fix this.

[Rollingstone]

Do a tracert yahoo.com and post.

[wassupjg]

Hi Rollingstone,

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

C:\Documents and Settings\Jerus>tracert yahoo.com

Tracing route to yahoo.com [206.190.60.37]
over a maximum of 30 hops:

1 2 ms 1 ms 1 ms 192.168.0.1
2 32 ms 29 ms 30 ms cr0.lwnedg.uk.easynet.net [195.189.158.76]
3 * 28 ms 25 ms 80.238.39.33
4 28 ms 25 ms 25 ms 67.17.198.202
5 26 ms 27 ms 26 ms 67.17.198.201
6 244 ms 204 ms 204 ms 64.208.27.58
7 154 ms 173 ms 204 ms ae2-p141.msr1.re1.yahoo.com [216.115.108.59]
8 * 225 ms 204 ms te-8-3.bas-a2.re4.yahoo.com [216.39.49.5]
9 133 ms 205 ms 204 ms w2.rc.vip.re4.yahoo.com [206.190.60.37]

Trace complete.

C:\Documents and Settings\Jerus>

[Rollingstone]

1 2 ms 1 ms 1 ms 192.168.0.1
2 32 ms 29 ms 30 ms cr0.lwnedg.uk.easynet.net [195.189.158.76]
3 * 28 ms 25 ms 80.238.39.33
4 28 ms 25 ms 25 ms 67.17.198.202
5 26 ms 27 ms 26 ms 67.17.198.201
6 244 ms 204 ms 204 ms 64.208.27.58
7 154 ms 173 ms 204 ms ae2-p141.msr1.re1.yahoo.com [216.115.108.59]
8 * 225 ms 204 ms te-8-3.bas-a2.re4.yahoo.com [216.39.49.5]
9 133 ms 205 ms 204 ms w2.rc.vip.re4.yahoo.com [206.190.60.37]

Trace complete.

High and irregular ping times !

Try Relocating modem/router to some place that are a few feet away from ALL other electrical devices, including apart from each other !

Also, make sure you do not coil up any excess length of signal or power cables.

[wassupjg]

The issue has only been occuring very recently, really since installing TuneXP on the main PC connected to the router, and installing it onto this laptop. I have now uninstalled and disabled all of Tune XP's settings, but it must have screwed up the wireless settings somehow. I have also done a System Restore.

Before this issue, the wireless has been working pretty much perfectly. I use WPA-PSK TKIP encryption, and IEEE 802.1x authentication is not enabled. I was thinking that there was just some setting that TuneXP had altered, that I could now correct. Would appreciate any other suggestions!

[Rollingstone]

Try the tips for wireless http://forums.speedguide.net/showthread.php?t=203247

[wassupjg]

I've uninstalled the wireless card driver and software, and I haven't had any real issues so far.
Thanks for the suggestions Rollingstone.