Just got Cox High Speed Internet Need help with slugish Speed

[Nuts46]

I switched from Verizon PPPoEto Cox Cable 3000/256 and my connection is crawling. I'm using Windows XP Pro, can somebody help me tweak or fix my connection please. TCP properties for IP = xx.xx.x.xxx
Browser/OS = Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040614 Firefox/0.8
Notes: Read the Analyzer FAQ if the above is not your IP address.
TCP options string = 020405a001010402
MTU = 1480
MTU is optimized for Windows XP PPoE DSL broadband. If not, consider raising MTU to 1500 for optimal throughput.
MSS = 1440
MSS is optimized for Windows XP PPPoE DSL broadband. If not, consider raising MTU to 1500 for maximum throughput.
Default Receive Window (RWIN) = 64800
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 64800

RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
506880 (MSS x 44 * scale factor of 8)
253440 (MSS x 44 * scale factor of 4)
126720 (MSS x 44 * scale factor of 2)
63360 (MSS x 44)
bandwidth * delay product (Note this is not a speed test):

Your RcvWindow limits you to: 2592 kbps (324 KBytes/s) @ 200ms
Your RcvWindow limits you to: 1036.8 kbps (129.6 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 118 hops

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

[mccoffee]

You have to get your mtu up to 1500 try thease settings apply them and reboot take another analyzer like you did above to see if mtu got fixed

Try thease in the sg optmizer below me to download and install
select - cable
check - custom settings
network adapter selection -
check modify all adapters
maxmtu -1500
TTL - 64
TCP Receive Window leave blank
MTU Discovery - yes
Black Hole Detect - no
Selective Acks - yes
Max Dup ACKs - 2
TCP 1323 nothing is checked
Other Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 20
Lan Browsing Speedup - optimized
Then select "Apply Changes" and reboot to take effect.

1. 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\ (http://www.agnitum.com) 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

[Nuts46]

TCP options string = 020405b001010402
MTU = 1496
MTU is fully optimized for broadband.
MSS = 1456
Maximum useful data in each packet = 1456, which equals MSS.
Default Receive Window (RWIN) = 65520
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 65520

RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
512512 (MSS x 44 * scale factor of 8)
256256 (MSS x 44 * scale factor of 4)
128128 (MSS x 44 * scale factor of 2)
64064 (MSS x 44)
bandwidth * delay product (Note this is not a speed test):

Your RcvWindow limits you to: 2620.8 kbps (327.6 KBytes/s) @ 200ms
Your RcvWindow limits you to: 1048.32 kbps (131.04 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 54 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000
I used the settings that you posted and as u can see the mtu wasn't raised. Some more help accomplishing this task.

[mccoffee]

goto my computer control panel network and dial up connections look for you current lan connection double click it if you see any thing with ppoe listed in the general properties remove it reboot and follow the steps i said above