I have had to reinstall my wireless printers everyday for the last couple of weeks. I upgraded to Windows 10 in December of 2015. I'll get the message that no driver is installed and that they are not connected to the network. One is an HP Officejet 8600 all-in-one & the other is an HP Envy 100 D410. I have had these printer a fairly long time with no problems. Now I have to go to the HP site & reinstall the drivers every day & then run the installation process again. I use their IP addresses when installing them. Does anyone know what the cause of this would be? Is there a fix for it.