PROBLEM

Error
When start print­er, then show mi this error.
Error code : B845D710
After restart­ed print­er, show me same error.
This error is same, if WIFI is off or UTP cable is con­nect­ed between Print­er and UPC mode.

SOLUTIONS
UPC MODEM {UPS — ISP oper­a­tor}, is cause this error.
UPC oper­a­tor, will change modem for anoth­er, like CISCO etc, if you inform them about this issue.