Be aware! gminer 2.67 trying to connect 3rd-party IP - 81.4.110.148 at start. If you will try to deny this connection with Firewall - miner will not start. I've opened issue on the official github page, but still no answer from devs.
It's not devfee pool IP. It's some unknown suspicious IP to which private information can be transmitted from your PC.
p.s. Gminer 2.66 works perfect with block all ips except of my Pool's IP.
This is indeed strange.
I used wireshark to capture the outgoing packets.
gminer initiates a TCP handshake during startup to 81.4.110.148:8443 but besides that, nothing is being sent.
I've let it run for an hour or so.
It is fishy though and since this is not an open source project I would also like the dev's response.
A possible solution for now is to block all outgoing connections (besides pool) after startup is over.