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ASPX + IIS perfect on internal network e.g. | Very slow on external http://www.website.com/app

Last Modified: 2012-05-09

I’m trying to diagnose an issue with an aspx application; it’s hosted on a IIS server (Win 2003 R2) its works perfectly when accessing from inside the network - loads instantly.

But on an outside connection it constantly hanging on different pages, I suspect it’s trying to load a dead url, image or something similar.
It there anyway I can see exactly what’s loading as I open the page e.g. a Firefox plug-in?

I've tried on different outside connections and I host a number of others sites under the same connection so its not network related.

Does anyone know what it might be?

Thanks, Joe
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