Salih şu adımları uygularmısın
Solution :
Start Registry Editor (Regedt32.exe) on the server that is running IIS and through which the user gains access to OWA.
Locate the following key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\InetInfo\Parameters
On the Edit menu, click Add Value, and then add the following registry value:
Value Name: UserTokenTTL (Note This is case-sensitive!)
Data Type: REG_DWORD
Value Range: 0 – 0x7FFFFFFF (Note This unit is in seconds.)
Exit Registry Editor, and then restart IIS.
