WiFi Authentication problem

I have an iMac, and iPad, a Blackberry (forgive me) and Airport for my WiFi all of my pieces are working fine with my WiFi. I had guests over the other day and we could not allow my guests iPads or iPhone to sign onto my network. I bought my dad a generic tablet to use for solving cross words, etc., and I cannot sign into my own network. No opportunity exists to put in a password because it just reads "Authentication Problem".
No opportunity exists, therefore, to enter the password. Signal strength is excellent, Securty is WPA2 PSK, I touch connect and it says Saved Secured with WPA2 and then goes back to "Authentication Problem."
I've unplugged (and plugged back in) both the Airport / router and Internet Service provider's modem. I've rebooted my iMac and the new generic pad 3 times each.
I had 2 networks one for me and one for guests, can't get into either, identical problem. I can see all of the neighbour's networks and they're all locked and say secured with (various WPA/WPA2, etc., just mine says Authentication Problem. I plugged the tablet into my iMac and it's functioning well.
I now deleted the guest network and can't open a new network.
I've triple checked my passwords, hand written and in the Key Chain.
I've checked my Apple ID (I'm able to get into this forum).
Both my iPad (purchased May 2013) and BlackBerry (received free July 2013) signed in without any problems.
I cannot see why I can't get into my network ~ any ideas?

Hello,
Hmmm..."problem"...pretty hard to understand. Can you provide more details? What exactly do you try? What exactly happens at each step of what you try? What is the exact and complete content of any error messages presented?
Please remember that we can't see you nor your device. We have only your words to help us understand your situation, and such understanding is the natural prerequisite to providing you with any useful guidance.
Thanks and let us know.
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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Posted: Jun 17, 2005 3:32 PM Reply E-mail this post
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~~~~~~~~~~~~~~~
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