HP C4180 Wireless printer lost network connection
You were probably piggy-backing on someone else's router, and they changed names, passwords, etc. But if you have a cell phone and internet access with that cell phone, you can set such a cell phone up as a hot spot (sharing internet connection)! The cell phone will tell you the SSID #, as well as the password which you will have to enter into the HP printer to let it connect.
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