Kerpau!

Here is how to tell which USB devices are using USB 1.1 and which USB devices are using USB 2.0. In Computer Management, go to Device Manager. Right-click on Device Manager and select View > Devices by connection. Then expand the USB device nodes until you see one that says Enhanced Host Controller. Devices listed under this node are using USB 2.0. Devices listed under other USB nodes are using USB 1.1.

Configuring an application to retrieve messages from an Exchange Server 2003 using POP3, I kept getting failures. I enabled POP3 authentication diagnostic logging and this event started popping (bad pun) up in the application logs.

Event Type : Error
Event Source : POP3SVC
Event Category : Authentication
Event ID : 1011
Description : Authentication attempt from to User Logon Name has failed with error 0×52e

That event lead me to the following Microsoft KB article which contained the information necessary to resolve the issue.

Users Cannot Log On Using POP3 and the Error 0×80040920 Is Logged

Essentially, it says to use the “DomainName\LogonName\MailboxAlias” format for the user name. It fixed the issue immediately in my case.

To get around this ProFTPD error:

421 No Transfer Timeout (300 seconds): closing control connection.

Set the TimeoutNoTransfer directive to “0″ (disabled).