Need help with tweak

Get help and discuss anything related to tweaking your internet connection, as well as the different tools and registry patches on the site. TCP Optimizer settings and Analyzer results should be posted here.
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LM037
New Member
Posts: 11
Joined: Fri Oct 28, 2005 10:14 am

Need help with tweak

Post by LM037 »

Hi Everyone,

I have been using a wireless connection to my router for a few years now. I tweaked my stsem everytime Cablevision raised their bandwidth limits. I now have moved and have 2 routers in the house and i am able to connect directly to the router. Can somoen help me with my settings

TCP properties for IP = x.x.x.x ()
Browser/OS = Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.7) Gecko/20060909 Firefox/1.5.0.7
Notes: Read the Analyzer FAQ if the above is not your IP address.
TCP options string = 020405b401010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
Default TCP Receive Window (RWIN) = 65535
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 65535

Note: TCP 1323 Options need to be enabled for RWIN over 2^16 (65535). Windows 9x might also need the MS Vtcp386 fix.
For optimum performance, consider changing RWIN to a multiple of MSS.
Other RWIN values 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 (Note this is not a speed test):

Your TCP Window limits you to: 2621.4 kbps (327.675 KBytes/s) @ 200ms
Your TCP Window limits you to: 1048.56 kbps (131.07 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 120 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)

results from http://www.speakeasy.net/speedtest/
down: 15197 kbps
up:1583 kbps

running windows xp and i erally dont know what cablevisions rates are.

Thanks in advance,

LM
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trogers
SG VIP
Posts: 12323
Joined: Wed Jan 26, 2005 11:14 pm
Location: Bangkok, Thailand

Post by trogers »

Use TCP Optimizer with the following:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1500
TTL - 64
TCP Receive Window - 513920
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 - 5
Host Priority - 6
DNSPriority - 7
NetbtPriority - 8
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
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mnosteele52
Posts: 11913
Joined: Tue Jul 24, 2001 12:00 pm
Location: Chesapeake, VA

Post by mnosteele52 »

Try the following:

Download the TCP Optimizer and try the following settings.

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 - 3
TCP 1323 Options:
Windows Scaling - check
Timestamps - uncheck

Advanced Settings tab:

Max Connections per Server - 10
Max Connections per 1.0 Server - 20
LocalPriority - 5
Host Priority - 6
DNSPriority - 7
NetbtPriority - 8
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 92
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768

Then select "Apply Changes" and reboot to take effect.

VERY IMPORTANT TO DO THE FOLLOWING:

1. Under your LAN connection - properties - general tab, uninstall all the protocols there that you do not need. For a stand alone pc all you need is Internet Protocol TCP/IP.

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 and set your duplex mode to "auto". If you are using a router make sure you have the latest firmware.

4. Clean out your temporary internet files with CrapCleaner.

5. Power cycle your modem i.e. unplug it for at least 15 seconds.

6. Download, update and scan with SpyBot S&D 1.4, Ad-Aware SE 1.06, AVG Anti-Spyware 7.5 & SUPERAntiSpyware to remove any spyware then install and update SpywareBlaster 3.5.1 to stay spyware FREE.

7. If you aren't currently using a firewall or anti-virus profram then I suggest you install Comodo Firewall and Active Virus Shield - (setup instructions HERE), both are FREE and offer excellent protection.

8. Do a FREE online virus scan from BitDefender Online Scan and remove all that it finds.

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

10. Just an FYI, if you are using Zone Alarm for a firewall it can noticeably drop your speeds.

:D :cool:
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LM037
New Member
Posts: 11
Joined: Fri Oct 28, 2005 10:14 am

Post by LM037 »

Thanks for the suggestions. Tried both settings and get the best speeds using trogers settings
new speed
down: 23671 kbps
up:1714kbps
LM
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Love2lounge2
New Member
Posts: 8
Joined: Tue Oct 31, 2006 12:31 am
Location: Buena Park, (Los Angeles) CA

Latency times too high.

Post by Love2lounge2 »

I'm using the Sprint EVDO network for access and have the Pantech PX500 Rev A card but Rev A has'nt been turned on in Buena Park (Los Angeles) CA but my upload and download times have been acceptable with signal strength between -71dBm to -83dBm but I think I can do better if my latency (ping) times were lower. I have downloaded and ran TCP Optimizer 2.0.3 which helped my speeds but latency times have always been consistenly high and I'm looking for suggestions to lower those times. Here are my numbers:

Image

Browser/OS = Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.7) Gecko/20060909 Firefox/1.5.0.7
Notes: Read the Analyzer FAQ if the above is not your IP address.
TCP options string = 020405b40103030201010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
Default TCP Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 bits (scale factor of 4)
Unscaled TCP Receive Window = 64240

RWIN is a multiple of MSS
Other RWIN values 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) <-- current value
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)
bandwidth * delay product (Note this is not a speed test):

Your TCP Window limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms
Your TCP Window limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 48 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)

Pinging [193.10.252.19] with 32 bytes ->bytes=32 time=311ms TTL=231
Pinging [193.10.252.19] with 32 bytes ->bytes=32 time=327ms TTL=231
Pinging [193.10.252.19] with 32 bytes ->bytes=32 time=288ms TTL=231
Pinging [193.10.252.19] with 32 bytes ->bytes=32 time=302ms TTL=231
Pinging [193.10.252.19] with 32 bytes ->bytes=32 time=321ms TTL=231
Pinging [218.32.192.112] with 32 bytes ->bytes=32 time=280ms TTL=45
Pinging [218.32.192.112] with 32 bytes ->bytes=32 time=254ms TTL=45
Pinging [218.32.192.112] with 32 bytes ->bytes=32 time=272ms TTL=45
Pinging [218.32.192.112] with 32 bytes ->bytes=32 time=266ms TTL=45
Pinging [218.32.192.112] with 32 bytes ->bytes=32 time=294ms TTL=45
Pinging [204.127.166.135] with 32 bytes ->bytes=32 time=200ms TTL=40
Pinging [204.127.166.135] with 32 bytes ->bytes=32 time=183ms TTL=40
Pinging [204.127.166.135] with 32 bytes ->bytes=32 time=156ms TTL=40
Pinging [204.127.135.135] with 32 bytes ->bytes=32 time=201ms TTL=43
Pinging [204.127.135.135] with 32 bytes ->bytes=32 time=184ms TTL=43
Pinging [207.155.248.99] with 32 bytes ->bytes=32 time=119ms TTL=238
Pinging [207.155.248.99] with 32 bytes ->bytes=32 time=141ms TTL=238
Pinging [207.155.248.99] with 32 bytes ->bytes=32 time=148ms TTL=238
Pinging [207.155.248.99] with 32 bytes ->bytes=32 time=144ms TTL=238
Pinging [207.155.248.99] with 32 bytes ->bytes=32 time=126ms TTL=238
Pinging [63.217.30.70] with 32 bytes ->bytes=32 time=200ms TTL=45
Pinging [63.217.30.70] with 32 bytes ->bytes=32 time=221ms TTL=45
Pinging [63.217.30.70] with 32 bytes ->bytes=32 time=195ms TTL=45
Pinging [63.217.30.70] with 32 bytes ->bytes=32 time=199ms TTL=45
Pinging [63.217.30.70] with 32 bytes ->bytes=32 time=201ms TTL=45
Ping statistics for above hosts:
Packets: Sent = 25, Received = 25, Lost = 0 (0% loss)
Approximate round trip times (RTT) in milli-seconds:
Minimum = 119ms, Maximum = 327ms, Average = 221ms
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trogers
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Posts: 12323
Joined: Wed Jan 26, 2005 11:14 pm
Location: Bangkok, Thailand

Post by trogers »

Hi Love2lounge2, welcome to our forum. Please start a new thread so that we can assist you exclusively.
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