Already tried with windowsXP firewall and Mcafee antivirus completely turned off.
Ran windows update last week, it is up to date.
Flashed router with latest firmware release.
Normal speeds are [via dsl report speed test, 5700-6500kbps download and 900-925kbps upload.] Also ran a download test from my isps ftp site and got average of 770KB/sec x 8=6160kbps.
WITH DMZ HOST ENABLED- speeds reduce to 725kbps-1000kbps on dsl reports and 350-425kbps for upload.
Below are my RWIN settings set up for broadband, and also a tweak test result from dsl reports.
Receive Window (RWIN): 131070
Window Scaling: 1
Path MTU Discovery: OFF
RFC1323 Window Scaling: ON
RFC1323 Time Stamping: OFF
Selective Acks: ON
MSS requested: 1460
TTL: unknown
TTL remaining: 114
2. Test 146000 byte download
Actual data bytes sent: 146000
Actual data packets: 100
Max packet sent (MTU): 1500
Max packet recd (MTU): 1500
Retransmitted data packets: 0
sacks you sent: 0
pushed data pkts: 3
data transmit time: 0.316 secs
our max idletime: 34.1 ms
transfer rate: 304624 bytes/sec
transfer rate: 2436 kbits/sec
This is not a speed test!
transfer efficiency: 100%
3. ICMP (ping) check
Target unpingable
Notes and recommendations:
RWIN is in range
Looking good
Notes and recommendations:
Good data stream (no/few rexmits)
Notes and recommendations:
Become pingable
if you need basic packet loss tests done
Check tweak FAQ