Intermittant problems for group of remote users connecting to OWA

We have a group of users that are working remotely at a warehouse with wireless internet connection, they are all experiencing intermittant problems with connecting to our mail server using Outlook Web Access

When it doesnt work  it just times out.

I tested the connection myself on a dial up from a different location and it works fine for me. They are working remotely in New York. I tested it succesfully from London. So I know OWA server is all working fine.

I should add they tell me they can access all other websites with no problem.
paul_at_workAsked:
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peakpeakCommented:
Since the connection to OWA is encrypted (I assume you use a certificate), the load on their machines will be higher and might cause this timeout. A normal connection is not that CPU-intensive, thus faster. Is it PDA's they're using? Do you use 128 bit encryption?
What they can try is to connect to a https site and check if they get a timeout. In that case you need to fiddle with the timeout values for the OWA and the like. But narrow the problem first
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paul_at_workAuthor Commented:
Hi, yes we use a certificate and its 128bit encryption.

They are using laptops, all high spec. I do not know what type of wireless internet connection they have, but do know it works sometimes and not others for OWA, although general internet access always works.

I will ask them to test another https: site and the post more info.

Thanks
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paul_at_workAuthor Commented:
I have spoken with them, and their connection has returned. Its very intermittant.

I have asked them to test goin to another https: site when they next experience a problem.

Any other ideas in the meantime?

Thanks
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