Eset Smart Security blocking QuickBooks

Windows 7 SP1 x64, same issue before and after upgrading ESET SS from 5 to 6.

There are a few mapped drives to a peer-to-peer file server and everything works fine until QuickBooks is launched (the QB file is on the server) - then ESET pops up a dialog warning about a "Port Scan" from the server IP address, and the mapped drives stop working until the ESET firewall is turned off.

I've tried setting the server IP in the trusted zone and everything else I could think of digging through the ESET configuration, but lose access to the network shares as soon as QuickBooks tries to access the QB file across the network.

 

The linked advice was for older version but based on that try interactive firewall mode, see
http://kb.eset.com/esetkb/index?page=content&id=SOLN2140

 

Interactive doesn't seem to make any difference. The "Port scanning" message pops up and I lose all access to the shares

 

try
http://kb.eset.com/esetkb/index?page=content&id=SOLN2951

 

Add the IP address of the remote computer where port scanning is performed to the list of addresses excluded from active protection in the zone setup.