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Gary Croxford
Flag for United Kingdom of Great Britain and Northern Ireland asked on

Able to Access Some Websites but not others

THank you for looking at my question,

We have had a new server - OS MS Small Business Server 2011 - installed. There are some small teething problems one of which is that users can access some websites but not others

Eg can access experts-exchange, bbc.co.uk, google - can't access easyjet.com, santander.com

This is happening at the server too.

resolved the easyjet address to an ip address and tried linking to that from the IE address bar but that doesn't work either

have also flushed server dns

don't know where to go next
Web BrowsersSBS

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Gary Croxford

8/22/2022 - Mon
Jeffrey Kane - TechSoEasy

If you can ping them, then most likely it's your MTU settings.  If the settings are mis-matched on your NIC, Firewall, and within Windows, you can get these kind of errors.  MTU should be set for no more than 1492 in all places.

You can easily modify the MTU on the NICs and within Windows with DrTCP:  www.dslreports.com/drtcp
The router needs to be set from it's control panel.

Jeffrey Kane - TechSoEasy

FYI, this is similar to what I've suggested here:  http:Q_21963681.html

Gary Croxford


can't ping those addresses i can't access
I started with Experts Exchange in 2004 and it's been a mainstay of my professional computing life since. It helped me launch a career as a programmer / Oracle data analyst
William Peck
Jeffrey Kane - TechSoEasy

Can you please post a complete ipconfig /all from both your server and a workstation?


Abbas Haidar

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run http://intodns.com and post the results
Gary Croxford


Has worked like a charm for me also
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