To fix the HP Printer offline issue on Windows 10 and Mac you need to go through the solutions that we have mentioned below. Turn on the HP Printer and load the paper. Step 1: Manually set the default printer . Step 2: Check the printer port and Windows services status. Step 3: Create a manual IP connection (network connections only) . Step 4: Connect the PC to a TCP/IP Port (Windows only, network only) . Step 5: Troubleshoot the printer connection.