Apple said that a problem of initializing iOS 6.1 devices to see syncing issues with Microsoft's Exchange Server has been recognized and a fix will be made accessible in an upcoming update, reports The Verge
The issue presents itself when a device, such as an iPad or iPhone, running the recently released iOS 6.1 attempts to make calendar, mail, or other syncing changes with Microsoft Exchange Server 2010. After the sync has been done, excessive log growth causes significant increases in CPU and memory, thereby affecting the performance of the server.
After being made aware of the bug, Microsoft on Tuesday responded by suggesting server administrator’s check or bar iOS 6.1 devices until a solution is found. There is no timeframe for when the fix for the Exchange bug will be released.