Cannot Activate Screen Sharing

[jeff526]

I upgraded my iMac to Lion when it first came out and had been using Screen Sharing successfully to connect from my iPad via a VNC client
Last night we had a power outage and my iMac shutdown (yes i need to get a UPS)
Thankfully it restarted fine and everything seems to be working

However I tried to access my iMac today via my iPad and it did not work
I can connect to my other Mac Mini from my iPad as well as connect from my Mac Mini to my iMac

I reviewed the Screen Sharing settings under System Preferences and it was not checked
I tried to check this, but nothing happened (the Lock changes is off)
I've also tried to restart and activate/deactivate remote management.

Any suggestions?

 

[iThinkergoiMac]

Have you rebooted both the iMac and iPad? Sometimes that's fixed it for me...

 

[jeff526]

I have rebooted the iMac
It is not an issue with my iPad as I can connect to other Macs on my network
The problem appears to be with system preferences not allowing me to enable screen sharing