You establish a dial-up connection on a Windows Vista-based computer by using USB modem device. Then, you put the computer into standby (the S3 power state). After you resume the computer from standby, you cannot establish a new connection, and you may receive the following error message:

Failed to connect to ConnectionName

Additionally, after you receive the error message, the following error may be logged in the Application log:

Log Name: Application
Source: RasClient
Event ID: 20227
Level: Error
CoID={XXXXXXXX-XXXX-XXXX-XXXXXXXXXXXXXXXXX}: The user UserName dialed a connection named ConnectionName which has failed. The error code returned on failure is 633.

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