Router rejects encrypted transmissions

My Dell computer with a Network Everywhere (Linksys) NR041 wired router does not allow certain web transmissions, including Windows Upgrades or other "encrypted" transmissions, if that is the term. Recently, my DSL provider has changed there e-mail format, and now, although I can get into my inbox I cannot retrieve messages.

However, if I bypass the router, all of the above become available, no problem.

I've tried unsuccessfully to upgrade the NR041 firmware.

I've seen references to changing the "MTU" to resolve this problem, but don't have a clue about how to go about it.

According to the router's support personnel, the router is no longer eligible for support without a charge (probably more than a new router).

Any suggestions would be appreciated. (Computer information listed below)

Thanks,

kellyplus

COMPUTER SYSTEM INFORMATION

OS Name Microsoft Windows XP Professional
Version 5.1.2600 Service Pack 2 Build 2600
OS Manufacturer Microsoft Corporation
System Name JAK
System Manufacturer Dell Inc.
System Model Dimension 8400
System Type X86-based PC
Processor x86 Family 15 Model 4 Stepping 1 GenuineIntel ~3192 Mhz
Processor x86 Family 15 Model 4 Stepping 1 GenuineIntel ~3192 Mhz
BIOS Version/Date Dell Inc. A03, 10/11/2004
SMBIOS Version 2.3
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume2
Locale United States
Hardware Abstraction Layer Version = "5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)"
Time Zone Eastern Daylight Time
Total Physical Memory 1,024.00 MB
Available Physical Memory 549.80 MB
Total Virtual Memory 2.00 GB
Available Virtual Memory 1.96 GB
Page File Space 2.40 GB
Page File C:\pagefile.sys

 

try resetting your router

better yet, just buy a new router they arent that expensive...

 

Speculant,

Thanks for your response.

This issue has been resolved without having to resort to a new modem. Turns out the Westell DSLmodem is itself a router, and needed to be set to bridge mode to properly work with the Network Everywhere NR041 router, which had to be configured to PPoE. This link has clear procedures for such connections: http://www.dslreports.com/faq/6096

In retrospect, I should have posted this thread in the Networking forum. Perhaps the moderator will want to move it there. Anyone else having problems linking a Westell modem and any number of routers might benefit from my experience.

Finally, honesty compels me to disclose that the solution came from JohnWill at another support site, techguy.org