My WD Wireless won´t mount on mac

My Wireless Passport wont suddenly mount on mac. I can access it wireless, but thats to slow. I need to use it with the USB cable. I run OS X El Capitan. Has anyone else had the same problem?

Sometimes it takes a while for the MPW to mount on my Mac. I could be minutes.

Maybe. It tried for hours. Still nothing.

Ok, maybe time for a soft reset?