Problems with iPad Exchange Calendar Sync under iOS 5.0.1

Under the prior iOS, I had been using my iPhone (3GS) and iPad1 with my calendar (and mail) synching with my Exchange account without any problems.
Now, under iOS 5.0.1, my calendar synchronization and how invitations are handled has become completely erratic.
Fortunately, none of the actual events on the server have been corrupted.
But when I accept invitations on my computer, the invitations don't get cleared on the phone. And/or they mysteriously change to "grey" unaccepted events.
If I then accept an invitation on the phone, it does not get changed on the iPad. If I then accept it on the iPad, then the phone switches its status to an unaccepted event.
It is completely infuriating.

25th Floor wrote:
Templeton - I realized I'm not completely clear about your suggestion.
Do you turn off the calendar for the Exchange acccount under the Settings for the iPhone or iPad. Which I guess eliminates the account, and then you have to enable it again and get it synched down to the appliance?
I was debating trying this approach, and was encouraged that you found it to work.....
Thanks.
correct.

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il_drago,
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~~~~~~~~~~~~~~~
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I've had similar issues - although my email and contacts were syncing with Exchange without issue, in iOS7 I developed a one-way problem with calendar sync.
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