This is a pretty simple fix for Network printer error 0x00000709.
1) Add a printer manually using a local port (LPT1) and load your printer driver.
a) Devices and Printers
Add a Printer
The printer that I want isn't listed
Add a local printer...
Use an existing port (pick one... I use LPT1)
Browse to driver
Pick printer driver
Remember to load the correct x32 or x64 driver.
Type a printer name
Share printer if you want
b) It will correctly show your printer offline
c) Connect to your network printer share
d) delete local printer (LPT1)