Web Development

A strange occurrence happened yesterday. I’m still not sure what triggered it but will post about it if and when I find out.

As a regular visitor to some sites (myspace.com as an example) I found that my main development PC couldn’t access some sites using any browser. I tried Firefox, IE 6 & 7 and Safari. Still no sites. My other 2 pcs could access the sites so I firstly assumed that it probably wasn’t a router problem.

I tried all the usual things - reboot pc, reboot router, turn off firewall and antivirus software, turn off all the other unrequired background programs but still no joy.

Then I was left to search the Internet for a solution.

After a bit of web trawling I found my solution thanks to the pages of “Ask Leo”. His helpful post here highlighted the problem. I downloaded the DrTCP utility and could then easily change the registry settings.

Essentially, a network configuration setting had changed. The “Max MTU” settings against my network card were all set to “blank”. I reset these to 1300 (the setting on my other machines) and after a reboot I can again visit everywhere on the internet.

Thanks and kudos to Leo’s site.

This entry was posted on Friday, May 23rd, 2008 at 10:57 am and is filed under Internet, Network, Windows XP. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.