Knowledge Base

XCLN: Err Msg: The Logon Attempt Timed Out While Waiting

Article ID: 143356

Article Last Modified on 10/28/2006

Microsoft Exchange Client 5.5
Microsoft Exchange Client 5.0

This article was previously published under Q143356

SYMPTOMS

When you select the Delivery tab in the Property dialog box for a Microsoft Exchange 16-bit Windows client, the following error can occur:

The logon attempt timed out while waiting for resources to become available Mapi 1.0 [00000a02]

WORKAROUND

Open Control Panel and select the Mail And Fax icon. Click Show Profiles, then click Properties. Then, without logging on, double-click the Microsoft Exchange icon to bring up the Choose Profile dialog box.

-or-
Complete the logon process held by the Choose Profile dialog box.

-or-
Cancel the Choose Profile dialog box to free the logon mutex.

STATUS

Microsoft has confirmed this to be a problem in the Microsoft Exchange version 4.0 16-bit Windows client.

MORE INFORMATION

The error message occurs because of the action that selecting the Delivery tab employs. "Delivery" is trying to log on while a logon mutex is held. A mutex is a type of lock that prohibits other threads from attempting to execute the same process. In the reverse case, the logon is completed before you attempt to do a second logon so no error is generated.

For additional information on "mutex," please see the following article in the Microsoft Knowledge Base:

125867 Understanding Win16Mutex

Additional query words: lock winnt win95 wfw

Keywords: kbusage KB143356