Home sharing not working on iPad and atv ?

I updated my ipad yesterday to 6.1 I'm not sure this is the problem? But now I can't sync or connect to iTunes

 

Then tonight tried to connect to home sharing on atv and its not working either ! I get errrr can not connect to home network or from iPad cannot connect to media library?

My wifi is working fine...

And I can watch iTunes on my iMac just not ipad or Apple TV

Please please help

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