HP Laserjet ProP1102 will not connect with my MacBook Pro

Question

My new Macbook Pro with Yosemite will not print on this printer. It did do so a few days ago but not anymore. In wireless mode it will not communicate with the printer (or the printer will not communicate with it.) When connected with a wire the printer does not respond.
On my old MacPro with Mountain Lion it will print with a wire but not without.
There was a fleeting mysterious notice saying i needed a software update but I cannot find anything to this effect on the HP website.

Answer 1

Hi @DavidL1,
I read your post and see that you are unable to print by a USB or Wireless connection. I will certainly do my best to help you.
Make sure Safari is set as the default browser. (sometimes the EWS won't open if it isn't set as the default)
Open Safari, across the top select the Safari menu, select Preferences, General, set as default.
Restore the printer's default wireless settings:
1. Turn the product off.
2. Press and hold the wireless button and the cancel button and then turn the product on.
3. Hold the buttons until the printer stops making noise, then release the buttons.
Print a a Configuration Page to make sure the IPv4 and SSID are cleared of the old settings.
Printing a Configuration Page.
Repair the Disk Permissions on the Mac:
Close all applications.
On the Apple menu bar, click Go, click Applications and then click Utilities.
Double-click Disk Utility.
Highlight your hard drive/partition on the left.
Click Verify and then Repair Disk Permissions.
Restart the computer..
Reset the Printing System:
Note: This will remove all printers in the print and Fax/Scan, any printer removed can be re-added later by clicking the plus (+) symbol.
Click the Apple icon and then click System Preferences.
Click Printers & Scanners.
Right-click (or Ctrl +click) in the left white side panel, then click Reset printing system.
Click OK to confirm the reset.
Type the correct Name and Password.
Click OK to reset the printing system.
Follow this document to reconfigure the printer over the wireless network.
Setting Up the Printer for a Wireless Network for the HP LaserJet Pro P1102w Printer.
Under OS X v10.10 Yosemite, OS X v10.9 Mavericks and OS X v10.8 Mountain Lion select Method three: Wireless setup using a USB connection.
If there is anything else I can help you with, just let me know.
Have a nice day!
Thank You.
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Gemini02
I work on behalf of HP