Problem
When running the stand alone HP iMFP installation application on a Windows 7 box the message "Unable to ping device at xx.xx.xx.xx" appears when the Verify Printer button is pressed. However opening a DOS command prompt and using the ping command from the same machine succeeds.
Solution
The mechanism used in the iMFP for HP installer to ping the printer must be run in Windows XP compatibility mode. To do this:
From Windows Explorer navigate to the Install folder of the iMFP for HP release
Right click on the Pharos HP Installer.exe application and choose Properties
Choose the Compatibility tab
Check the box for Run this program in compatibility mode and click OK