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[georgeD]

We have this issue once and awhile. If they are using internal dns in their office, everything will look good, but to everyone else there's errors.

[tickler]

Originally Posted by georgeD

We have this issue once and awhile. If they are using internal dns in their office, everything will look good, but to everyone else there's errors.

Sometimes there is also sync errors on the DNS servers.

[flowersgone]

Originally Posted by tickler

Sometimes there is also sync errors on the DNS servers.

Are you familiar with services like http://pingdom.com? I use them on another site I am developing and their reports are helpful in identifying DNS problems and other reasons why pages might not load. I believe they allow for retrieval of an url as often as every minute which may be useful in tracking down intermittent problems.