I have my printer on the same wifi network as my cellphone. When I need to print something it says 'printer not available' until I go into my phone settings and change the network to my printer and I have to put the password in every time and then after I print I have to go back into my phone settings and change the network back. Why does this happen? Before, it would switch on it's own automatically and I didn't have to do anything. I don't know why it changed to this, its really annoying..??