Lost connection to MySQL server?

Hi all,

I received an email from my site saying there was a database error.

Lost connection to MySQL server at ‘reading initial communication packet’, system error: 111
/home/…/cwpnetwork.com/cwpnetwork_forum/includes/class_core.php on line 314

I tried to go to the site and none of it was working. From what I can see, it lasted about 5 minutes. Then all was fine again.

Can anyone give me a clue what that was about. Both my vbulletin forum and my wordpress pages were down.

Thanks for any guidance.