Hi there,

I recently started using our 2830 as the direct connection to a bt business broadband adsl line.

Since this time we've had connection issue with dropout and http sessions 'hanging'

It only seems to be http sessions as while experiencing the issue I can ping the same server I have the http session with and if I have a https session connected at the same time this is unaffected!

Also if I swap the http session to a secure(https) session it connects fine.

I run a SBS server with ISA server interface behind the 2830 and have set it up as a dmz server plus opened all ports to it. I also connect directly to the vigor wirelessly, it seems to be the connections to the SBS server are affected the most.

I tried running with the denial of service (dos) enabled on the vigor however this made things worse.

Can anyone suggest things to try to identify what may be causing this issue?

TIA

Regards,
Renners.