My Kerio logs are showing constant incoming connection attempts from my isp to ports 445 (every 1-2 minutes) and netbios ports (every 4-5 minutes). Is this normal? I've had no reason to inspect my logs for a while so I don't know if this is just recently or since I've been with them. Standalone computer, not connected to any others. Any services relating to remote/sharing etc are disabled and the ports are blocked by kerio so I'm not overly concerned at the moment, just curious.