wingnut771
Honorary Master
When you upload at your line's maximum upload speed your connection quality will be substantially reduced. This has nothing to do with Crystal Web but rather ADSL technology itself. If you're using the full capacity of your line (upload or download) it will cause a degradation of all other services. This is irrespective of the ISP you use, and the type of data you are using. Happy to hear you came right though...
This is what I was getting at.
EDIT: Upload has a much bigger effect than download, eg: if I max my download, ping goes 100-200ms, max my upload and it goes up to 2000+ms.