Issue with 3Com OfficeConnect ADSL Router

I posted this in the Home Networking forum but I believe this one is more relevant - apologies!

Ever since using a 3Com OfficeConnect ADSL Wireless 11g Firewall Router I have had some problems with browsing web pages in Internet Explorer. When I click on links, sometimes I have to click the link more than once or hit refresh to get a page to load. If I don't, Internet Explorer just sits there and looks as if it's loading the page but does nothing. I have tried changing MTU as suggsted by some (was 1492, have set it at 1430, 1500, 1472) but it has done little to help.I have even tried disabling the router's firewall but it doesn't seem to help. Anyone have any suggestions as to what to do? Speedtests indicate the connection seems fine and the router is used wirelessly but the strength is always between very good and excellent (4 or 5 bars) in Windows XP.

Previously I had a Connexant AccessRunner DSL Modem PCI Card and had no such issues with that.

Hi, I would think the issue with your connection will be the MTU setting for your 3Com router and Windows.

I prefer to find the MTU this way,
Finding the largest MTU by EXPERIMENT version 2

First reset windows with Dr TCP to MTU 1500.
Then reset modem/router to MTU 1500 save it, reboot PC and modem/router.

Next from windows, go to Start/Run and type at Open: cmd (click OK)
At the MSDOS-PROMPT type,

ping -f -l 1472 www.bbc.co.uk

Then reduce 1472 by 10 until you no longer get the "packet needs to be fragmented" error message or