Many thanks.

I've done quite a bit of reading today regarding NAT and have even read the instruction manual for my router (!), but to no avail. I've tried using UPnP and not, also forwarding the port in my router.

Interestingly, the router log shows blocked requests to port 6346 which would support the "false" reading in the Bug Report.

At the moment I'm a DMZ - something else I've learnt - which I hope (correctly?) shouldn''t fill me with dread since I'm using a Mac.

Thanks for the 'heads up' regarding 4.8....I have it downloaded now, after figuring out that I actually WAS downloading 4.8 and not the stated 4.6. Doh!