linksys tweaks

[strasil24]

Hey i just changed from a dlink di-604 to a linksys. Have heard better things about the linksys befsr41. Here are my tweak tests.

1. Your Tweakable Settings:
Receive Window (RWIN): 8280
Window Scaling: off
Path MTU Discovery: ON
RFC1323 Window Scaling: OFF
RFC1323 Time Stamping: OFF
Selective Acks: ON
MSS requested: 1380
TTL: unknown
TTL remaining: 112

2. Test 146000 byte download
Actual data bytes sent: 146000
Actual data packets: 106
Max packet sent (MTU): 1420
Max packet recd (MTU): 1420
Retransmitted data packets: 0
sacks you sent: 0
pushed data pkts: 27
data transmit time: 1.137 secs
our max idletime: 70.3 ms
transfer rate: 92687 bytes/sec
transfer rate: 741 kbits/sec
This is not a speed test!
transfer efficiency: 100%


3. ICMP (ping) check
Trial ping gave errors: Redirect


What do i need to change?

Here are my latest speed tests

http://www.dslreports.com/speedtests/583418;1194029;1d175e5597992efd596b3bfb7d0a44c7;2.0;www.dslreports.com/1079417368

its a 583/1194 if your too lazy to look.

I used to get like 4300/1200 on a good day.

What cablenut settings do i need and also what do i enter in dr tcp. And is there anything else i need to do?

thanks

[mccoffee]

Don't need dr.tcp use cablenut and that's it. Also what type of connection you have and who is ur provider and also windows version??

On the linksys goto 192.168.1.1 click on advanced make sure block wan request is disabled.

[strasil24]

Don't need dr.tcp use cablenut and that's it. Also what type of connection you have and who is ur provider and also windows version??

Sorry forgot that stuff. Qwest, cable, and 98.

On the linksys goto 192.168.1.1 click on advanced make sure block wan request is disabled.

I use version 3 and i think those instructions is version 2. THere is no advanced tab, so where can i find that?

[mccoffee]

it's under sercurity the block wan request also while you are at 192.168.1.1 click on baic and set your mtu to 1500.

[strasil24]

ok thanks. I disabled this one :Block Anonymous Internet Requests

Hope that was right.

Also enabled mtu to 1500.

Here are my results to the tcp analizer

TCP options string = 0204056401010402
MTU = 1420
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.
MSS = 1380
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.

Default Receive Window (RWIN) = 8280
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 8280

RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
507840 (MSS x 46 * scale factor of 8)
253920 (MSS x 46 * scale factor of 4)
126960 (MSS x 46 * scale factor of 2)
63480 (MSS x 46)
bandwidth * delay product:

Your RcvWindow limits you to: 331.2 kbps (41.4 KBytes/s) @ 200ms
Your RcvWindow limits you to: 132.48 kbps (16.56 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.
MTU Discovery (RFC1191) = ON
Time to live left = 113 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000

What cablenut settings do i enter? Or what else do i need to do. Thanks.

[mccoffee]

Are you running any virtual private network software and or Internet connection sharring your mtu should be 1500 in analzyer??

[strasil24]

Not that i know of... What are some common names of those? I can check.

[mccoffee]

cisco microsoft virutal private networking softare download the tcp optimizer and click cable on top and custom on bottom put 1500 for mtu apply changes and reboot.

[strasil24]

Did that... but still nothing has changed. Just to let you know i havent messed with cablenut yet as i dont know what settings to use. Could this be a problem? ALso didnt find that program or any others like it on my computer...

here are latest results.

TCP options string = 020405640103030201010402
MTU = 1420
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.
MSS = 1380
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.

Default Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 bits (scale factor of 4)
Unscaled Receive Window = 64240

For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
507840 (MSS x 46 * scale factor of 8)
253920 (MSS x 46 * scale factor of 4)
126960 (MSS x 46 * scale factor of 2)
63480 (MSS x 46)
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

[mccoffee]

Try the following in cablenut
DefaultReceiveWindow =102400
DefaultSendWindow = 16384
DisableAddressSharing = 1
InitialLargeBufferCount = 100
InitialMediumBufferCount = 240
InitialSmallBufferCount = 320
LargeBufferSize = 81920
MaxFastTransmit = 64000
MediumBufferSize = 15040
PriorityBoost = 0
SmallBufferSize = 1280
TransmitWorker = 32
FastSendDatagramThreshold = 4096
EnableFastRouteLookup = 1
EnablePMTUDiscovery = 1
IgnorePushBitOnReceives = 0
GlobalMaxTcpWindowSize = Leave blank
MaxFreeTcbs = 8000
MaxHashTableSize = 16384
MaxNormLookupMemory = 5000000
SackOpts = 1
SynAttackProtect = 1
Tcp1323Opts = 1
TcpLogLevel = 1
TcpMaxDupAcks = 3
TcpMaxHalfOpen = 100
TcpMaxHalfOpenRetried = 80
TcpRecvSegmentSize = 1380
TcpSendSegmentSize = 1380
TcpTimedWaitDelay = 30
TcpUseRFC1122UrgentPointer = 0
TcpWindowSize = Leave blank
MaxConnectionsPer1_0Server = 20
MaxConnectionsPerServer = 10
DefaultTTL = 64
DisableUserTOSSetting = 0
TcpMaxDataRetransmissions = 6
DefaultTOSValue = 92





Co/o manosteele52

. Under your LAN connection - properties - general tab, uninstall all the protocols there that you do not need.

2. Open IE and select tools - internet options - connections -
LAN settings, make sure NOTHING there is checked.

3. ALWAYS connect your modem via ethernet (NIC) and make sure you have the latest drivers for your NIC from the manufacturer. Set your NIC duplex mode to 10mb half duplex for Cable, for DSL it is ISP dependent unless you are using a router, if so then set it to 100mb full duplex for both Cable & DSL (the instructions are in my Help & Tips link). If you are using a router make sure you have the latest firmware.

4. Clear your temporary internet files.

5. Power cycle your modem, unplug it for atleast 15 seconds.

6. Download and update then do a scan with SpyBot 1.2 http://beam.to/spybotsd & Ad Aware 6.0 http://www.lavasoftusa.com/support/download to remove any spyware then install and update SpywareBlaster to stay spyware FREE. YOU MUST USE BOTH AD AWARE & SPYBOT TO ENSURE YOU ARE SPYWARE FREE SINCE ONE FINDS WHAT THE OTHER MISSES.

7. Make sure you do the faster web page tweak in Read1st link.

8. If you have Zone Alarm as a firewall uninstall it then visit Zonelabs.com for further instructions on removing it's left over junk.

9. Install Outpost Firewall http://www.agnitum.com/products/outpost or Sygate Firewall http://www.sygate.com/, both have FREE and Pro versions and are heads above ZA.

10. Scan for viruses with your antivirus app, if you do not have one get one IMMEDIATELY, AVG 6.0 http://www.grisoft.com/us/us_dwnl_free.php is an excellent FREE AV app.

11. Make sure you have ALL of the latest Windows Updates.

[strasil24]

Here are the things i see in cable nut

BcastNameQueryCount
BcastQueryTimeout
BSDUrgent
CacheTimeout
DefaultRecvWindow
DefaultTTL
EnableDNS
GlobalMaxTcpWindoSize
KeepAliveInterval
KeepAliveTime
Lanabase
LocalCopyMade
MaxConnections
MaxConnectRetries
MaxDataRetries
NameTableSize
NameSrvQueryTimeout
PMTUBlackHoleDetect
PMTUDiscovery
RoutingBufSize
RoutingPackets
SackOpts -
SessionKeepAlive
SessionTableSize
Size/Small/Medium/Large
Tcp1323Opts
TcpTimedWaitDelay
MaxDupAcks
DefaultTOS
IGMPLevel -
MaxConnectionsPer1_0Server
MaxConnectionsPerServer

The ones you gave me arent there?

EDIT:Ive tried everything else except for #3. Ill give that a try as well.

[mccoffee]

http://www.speedguide.net/files/236926usa8.exe download and install this reboot then try the following in cablenut


BcastNameQueryCount - 1
BcastQueryTimeout - 100
BSDUrgent - 1
CacheTimeout - 600000
DefaultRecvWindow 64240
DefaultTTL - 64
EnableDNS - 0
GlobalMaxTcpWindoSize 64240
KeepAliveInterval - 500
KeepAliveTime - 14400000
Lanabase - 0
LocalCopyMade - 1
MaxConnections - 64
MaxConnectRetries - 5
MaxDataRetries - 99
NameTableSize - 255
NameSrvQueryTimeout - 100
PMTUBlackHoleDetect - 0
PMTUDiscovery - 1
RoutingBufSize - 146432
RoutingPackets - 100
SackOpts - 1
SessionKeepAlive - 7200
SessionTableSize - 255
Size/Small/Medium/Large - 3
Tcp1323Opts - 0
TcpTimedWaitDelay - 30
MaxDupAcks - 3
DefaultTOS - 92
IGMPLevel - 2
MaxConnectionsPer1_0Server - 20
MaxConnectionsPerServer - 10

[strasil24]

Ok did all that and it killed my speed.

2004-03-16 20:49:00 EST: 260 / 758
Your download speed : 260869 bps, or 260 kbps.
A 31.8 KB/sec transfer rate.
Your upload speed : 758533 bps, or 758 kbps.

Your upload speed is much faster than down.. have you tweaked?
Your connection hardly qualified as broadband, at least in that test

http://www.dslreports.com/speedtests/260869;758533;5bc0d03c705bacb2abd3be217cc87583;2.0;www.dslreports.com/1079487959

[mccoffee]

Did your mtu change??

[strasil24]

Nope.

TCP options string = 020405640103030201010402
MTU = 1420
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.
MSS = 1380
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.

Default Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 bits (scale factor of 4)
Unscaled Receive Window = 64240

For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
507840 (MSS x 46 * scale factor of 8)
253920 (MSS x 46 * scale factor of 4)
126960 (MSS x 46 * scale factor of 2)
63480 (MSS x 46)
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) = 01011100

Precedence (priority) = 100 (flash override)
Delay = 1 (low delay)
Throughput = 1 (high throughput)
Reliability = 0 (normal reliability)
Cost = 1 (low cost)

[mccoffee]

Try thease if thease


BcastNameQueryCount - 1
BcastQueryTimeout - 100
BSDUrgent - 1
CacheTimeout - 600000
DefaultRecvWindow 59340
DefaultTTL - 64
EnableDNS - 0
GlobalMaxTcpWindoSize 59340
KeepAliveInterval - 500
KeepAliveTime - 14400000
Lanabase - 0
LocalCopyMade - 1
MaxConnections - 64
MaxConnectRetries - 5
MaxDataRetries - 99
NameTableSize - 255
NameSrvQueryTimeout - 100
PMTUBlackHoleDetect - 0
PMTUDiscovery - 1
RoutingBufSize - 146432
RoutingPackets - 100
SackOpts - 1
SessionKeepAlive - 7200
SessionTableSize - 255
Size/Small/Medium/Large - 3
Tcp1323Opts - 0
TcpTimedWaitDelay - 30
MaxDupAcks - 3
DefaultTOS - 92
IGMPLevel - 2
MaxConnectionsPer1_0Server - 20
MaxConnectionsPerServer - 10

[strasil24]

2004-03-16 22:05:24 EST: 336 / 1298
Your download speed : 336882 bps, or 336 kbps.
A 41.1 KB/sec transfer rate.
Your upload speed : 1298701 bps, or 1298 kbps.

Your upload speed is much faster than down.. have you tweaked?
Your connection hardly qualified as broadband, at least in that test



TCP/ip

TCP options string = 020405640103030201010402
MTU = 1420
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.
MSS = 1380
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.

Default Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 bits (scale factor of 4)
Unscaled Receive Window = 64240

For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
507840 (MSS x 46 * scale factor of 8)
253920 (MSS x 46 * scale factor of 4)
126960 (MSS x 46 * scale factor of 2)
63480 (MSS x 46)
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) = 01011100

Precedence (priority) = 100 (flash override)
Delay = 1 (low delay)
Throughput = 1 (high throughput)
Reliability = 0 (normal reliability)
Cost = 1 (low cost)

[mccoffee]

Those aren't the settings i gave you if they were your rwin would be 59340 not 256960

Also if your' uploading is going that high i would call the isp you got something wrong other then tweaking i think your' upstream is set to high on the modem


goto http://192.168.100.1/

see what is your signal is past the resaults.

[strasil24]

I went there but dont know what info u want...

I dont think its my isp either.. i used to have it running real nice.

I had it up to 2743/1317 kbps on the linksys but now its super slow that i have messed with all those settings.

I used to get 4365/1518 kbps with my dlink....

what next?

[mnosteele52]

OK forget everything until you get your MTU straight. You said you are on a cable connection right? Then your MTU should be 1500, first bypass your router and post a TCP/IP Analyzer test so that we can see if it's your router limiting your MTU or your registry. Once you do that we can get started optimizing your connection.

:cool:

[strasil24]

"first bypass your router "

Not really sure how to do this. I have tried before. Is there anyway you could get on aim and walk me through it?

Those aren't the settings i gave you if they were your rwin would be 59340 not 256960

I know, i go and hit apply the settings but it doesnt change on the tcp ip analyzer.

[chpalmer]

You should be able to simply plug the computer into the modem directly then restart both.

quote-"Qwest, cable, and 98."

Qwest provides cable now???:eek: :eek:

[strasil24]

lol i guess so?

Also ive tried a bunch of times to get just the modem to run without my router. Lemme explain where all my cords are.

I have the cable from the phone jack plugged into my modem. I have a blue ethernet cord going from my router into the 10/100 port. I also have a cable coming from my computer(dont know where) to my router in the first port.

I also have a usb port in my modem but that cord isnt plugged in anywhere.

Can you tell me what cords go where?

Also my aim is strasil42 if anyone would be able to get on and help me through this. Im just sitting at my comp hitting refresh getting bored.

[chpalmer]

Sorry- I dont do aim myself, but I think mnosteele does so he may show up there. I believe you have dsl. Cable is the same thing used for cable tv. It would spin on to the connector. DSL plugs in like a phone.

What modem do you have, make and model?

[strasil24]

It does spin onto the modem. Although it could be dsl.. im a super noob at this stuff.

The make and model is com21 DoxPortDp1110

[chpalmer]

http://www.castlenet.com.tw/products/cable/DP1110XB.htm

That would prove your a cable customer.
But QWEST?? oh well.:p

Have you tried unplugging the computer from port one of the router and putting it directly into the port on the modem then reboot both modem and computer?

[chpalmer]

Go look at your tv's guide page and see who the company is there.

[mccoffee]

I think i found the mtu promblem i guess that modem may notice the may has a firwall/router featrue the promblem is that every comp21 support link is dead. My guess right now is double natting.

[strasil24]

mccoffee, thanks for all the help last night. After you told me to unplug it from the modem back up to the router i did the setup wizzard and it changed all my settings back so it took forever to fix that.

My tests with the router now are actually way better than before.

2004-03-17 16:45:33 EST: 3275 / 1021
Your download speed : 3275594 bps, or 3275 kbps.
A 399.8 KB/sec transfer rate.
Your upload speed : 1021276 bps, or 1021 kbps.

but still the mtu problem

TCP options string = 0204056401010402
MTU = 1420
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.
MSS = 1380
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.

Default Receive Window (RWIN) = 59340
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 59340

RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
507840 (MSS x 46 * scale factor of 8)
253920 (MSS x 46 * scale factor of 4)
126960 (MSS x 46 * scale factor of 2)
63480 (MSS x 46)
bandwidth * delay product:

Your RcvWindow limits you to: 2373.6 kbps (296.7 KBytes/s) @ 200ms
Your RcvWindow limits you to: 949.44 kbps (118.68 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) = 01011100

Precedence (priority) = 100 (flash override)
Delay = 1 (low delay)
Throughput = 1 (high throughput)
Reliability = 0 (normal reliability)
Cost = 1 (low cost)


It looks like the rwin changed at least to the 59340 so thats good, just the mtu is still not all the way up.

HOw can i fix that double natting thing if that is my problem?

Thanks.

[mccoffee]

I think the mtu is in your registry or it could be on your modem itself how to fix it i'm not sure on the modem there is no support pages i saw for that modem none if i find a manual for the modem. I could tell you how to fix the mtu

Goto start menu run type regeidt click on edit and find have it lookf for mtu 1420 and see what it picks up.






How ever if we could get the speeds without being 1500 we should be alright


Go back into cablenut and change that 593240 in both places to


71000 and tcpopts123 to 1 apply changes reboot take another speed test.

[strasil24]

Killed my download speed

2004-03-17 19:12:49 EST: 223 / 1181
Your download speed : 223938 bps, or 223 kbps.
A 27.3 KB/sec transfer rate.
Your upload speed : 1181102 bps, or 1181 kbps.

Also did a registry search and it didnt pick anything up. Just said fininished with search.

[mccoffee]

Don't use the router just hook computer up to modem don't use the router also maybe call linksys and ask why is the router is having so many confilcts with your speed /modem .

You'r speeds were fine that change shoul've have done those resaults

[mccoffee]

I"m on aim now