Need Help tweaking upload speeds on Fios 20mbps u/d

[wanye1]

Hello all, just upgraded my plan from Fios' 15mbps symmetrical to their 20mbps symmetrical and have had trouble with upload speeds since. With the 15 mbps symmetrical I was getting full use both up and down. Now with the 20mbps, I am getting full down but anywhere between 7-14 mbps up.

Modem has been powercycled and speed tests through speakeasy just came back with the following:

Last Result:
Download Speed: 20733 kbps (2591.6 KB/sec transfer rate)
Upload Speed: 14972 kbps (1871.5 KB/sec transfer rate)

I know it might be nitpicking at this point but if I'm paying for 20mbps, I'd like 20 mbps. ;-)

Any help would be appreciated! here are the stats

System: Windows XP Pro SP2
Connection: Verizon Fios 20mbps symmetrical up and down
Computer in question is connected directly via ethernet cable to Actiontec MI424WR router provided by Verizon

« SpeedGuide.net TCP Analyzer Results »
Tested on: 07.23.2008 12:11
IP address: 70.104.xxx.xx

TCP options string: 020405ac0103030401010402
MSS: 1452
MTU: 1492
TCP Window: 1045440 (multiple of MSS)
RWIN Scaling: 4
Unscaled RWIN : 65340
Reccomended RWINs: 63888, 127776, 255552, 511104
BDP limit (200ms): 41818kbps (5227KBytes/s)
BDP limit (500ms): 16727kbps (2091KBytes/s)
MTU Discovery: ON
TTL: 54
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

[Rollingstone]

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU 1492
TTL - 64
TCP Receive Window - 511104
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - check
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

[mccoffee]

look into windows xp sp3 it does have some networking enahancements

[wanye1]

well, i did update to sp3 (not to get better speeds but just becasue i had forgotten to up until this point)

applied your settings, rollingstone, and still stuck at 15mbps upload (download is fine)

looks like my TCP recieve window is not changing with TCP Optimizer. Should i try Cablenut?

« SpeedGuide.net TCP Analyzer Results »
Tested on: 07.26.2008 19:57
IP address: 70.104.xxx.xx

TCP options string: 020405ac0103030401010402
MSS: 1452
MTU: 1492
TCP Window: 1045440 (multiple of MSS)
RWIN Scaling: 4
Unscaled RWIN : 65340
Reccomended RWINs: 63888, 127776, 255552, 511104
BDP limit (200ms): 41818kbps (5227KBytes/s)
BDP limit (500ms): 16727kbps (2091KBytes/s)
MTU Discovery: ON
TTL: 54
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

[trogers]

looks like my TCP recieve window is not changing with TCP Optimizer. Should i try Cablenut?

What kind of antivirus and firewall are you using?

[wanye1]

Antivirus is AVG 8.0 and currently am not using a firewall program. Windows XP firewall is turned off.

[Rollingstone]

Windows XP firewall is turned off.

Turn off your router's firewall also !

[trogers]

Antivirus is AVG 8.0 and currently am not using a firewall program. Windows XP firewall is turned off.

Try using Cablenut with the following field values included:

DefaultReceiveWindow - 511104
GlobalMaxTcpWindowSize - 511104
TcpWindowSize - 511104