Can't Access Secured Web Sites

[Trail Rider]

I am using XP pro and IE6 or IE7 and I am having difficulties accessing
certain secured web sites on both IE 6 and 7. It seems that some of the site
will allow be to enter a user id and password, but will not let me download
information from the site once I have logged on. On some sites I can’t even
get by the log in screen.

What seems strange is that this happens only when the machine is connected
to a router (Linksys VR016). I have several other machines (also running XP
pro and IE6 and 7) connected to that router that can access these sites
without any problems.

If I connect the troubled machine directly to a DSL modem there doesn’t seem
to be any issues. Also, I have used the machine on other networks with a
Linksys Wireless router (although I used a cable to connect to the router)
without any issues.

I would suspect the VR016 router, but why would other older machines work
when a newer one won’t. I have also tried disabling the firewall on the
router and computer to no avail. I have set the security setting to low on
the troubled machine, but again it doen’t help.

 

[PA Bear [MS MVP]]

You probably need to adjust your MTU settings. Start here:
http://www.dslreports.com/tweaks

 

[Trail Rider]

Already trid that! But Thanks

You probably need to adjust your MTU settings. Start here:
http://www.dslreports.com/tweaks
--
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
AumHa VSOP & Admin http://aumha.net
DTS-L http://dts-l.net/

 

[PA Bear [MS MVP]]

What were the results? Were you connecting via the router when you tested?
Did you also run DrTCP? => http://www.dslreports.com/drtcp

=====================

See http://support.microsoft.com/kb/315008 (ignore the title) | Scroll down
to the section "If You Connect by DSL, Cable Modem, or LAN on Windows XP"...

<QP>
NOTE: If the issue continues to occur, repeat the preceding steps, but type
a different MTU value between 1,454 and 576. When you test additional MTU
values, try 576 and then increase the number to 600. If setting the MTU
value to 600 does not resolve the issue, increase the value by 100 until you
reach 1,400. If the issue continues to occur, try 1,454 and then stop. When
you are finished, if the issue is still not resolved, change the MTU value
back to 576.

....The maximum transmission unit (MTU) setting controls the maximum size of
a TCP/IP packet that your computer sends. If the Internet service provider
has a limit for what can be received, your packets may become fragmented,
thus causing problems.
</QP>

=====================

How to troubleshoot network connectivity problems in Internet Explorer
[ignore APPLIES TO section if you're not running Vista or IE7]
http://support.microsoft.com/kb/936211
--
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
AumHa VSOP & Admin http://aumha.net
DTS-L http://dts-l.net/