When I was lately digging out an old Windows 7 and tried to include it into my local network I had the problem that I could not get the Networkprinter (Samsung Xpress M2825ND) to work. I had set the Windows firewall to block everything except Browsers and stuff and couldn’t figure out what the printer needed to work.
So, for anyone who has problems printing on a Network printer from Samsung through a locked-down windows firewall:
You have to add the print client from the windows directory to the exceptions for the firewall. In the case of the Samsung Express it is called “splwow64.exe”.
1. Try to print something with your firewall on
2. Open the task manager and look for the print client that comes up (and is blocked)
3. Go to system –> networking –> security –> firewall –> advanced options
4. Go to “outbound connections” (as I have a German windows, the menu-names might differ slightly)
5. Add “new rule” (or such) and point it to the program you found out at step (2.)
6. Let the program connect to anywhere (and welcome NSA, eh!)