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User profile for user: KF1
KF1 Author
User level: Level 1
5 points

Cannot log in at times & wi-fi printing doesn't work

Since upgrading to Yosemite either the log-in screen does not appear (stays black) or it is frozen so that I cannot type in my password.

If I remember to open the laptop very slowly it usually works. But not always. And I don't always remember to open slowly!


I have had to hook the laptop to the printer using a USB. Whenever I set up the printer to use WiFi it works for a while and then

I come back and the access is gone.


Thanks - KF

OS X Yosemite (10.10.1)

Posted on Jan 3, 2015 2:37 PM

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4 replies
User profile for user: Eric Root
Eric Root
User level: Level 10
684,027 points

Jan 13, 2015 11:05 AM in response to KF1

Network Printer Troubleshooting


If you have the printers IP address open Terminal (Applications/Utilities) and at the prompt type: ping {printerIP}. You will get a reply or failure.


Printer Troubleshooting - Yosemite


If you haven't done so already, try resetting the printing system.


OS X Mavericks: Reset the printing system Yosemite

WiFi Printer to WiFi Network - Connect


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User profile for user: KF1
KF1 Author
User level: Level 1
5 points

Jan 15, 2015 9:57 PM in response to KF1

Well, I spoke too soon. Once again I have lost WIFI printing ability and can only print using a USB. Again the Epson printer indicates that the WIFI is working. But the Macbook Pro does not see it.


I hear that a new Yosemite update is due out in a couple of weeks so I hope it will address this issue, too.

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Cannot log in at times & wi-fi printing doesn't work

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