Error code 5

Hello,
un ami a un probleme avec sa connection internet,il recoit le message suivant:
iexplore
system error code 5
connection refusee.
Son systeme d'exploitation est Windows Xp home edition
Une recherche sur google m' a livré ceci,(voir en dessous)mais est valable pour les autres versions de Win,on ne parle pas de Xp.Sans IE,pas de update.
Si quequ'un a une idée?Merci pour le copain!
Code 5
The driver for this device requested a resource that Windows does not know how to handle. (Code 5)

To fix this, click Update Driver to update the driver for this device.
Solution button: Update Driver

This code indicates that there was a device failure due to the lack of an arbitrator. If a device requests a resource type for which there is no arbitrator, you receive this error code.

To resolve this problem, update the driver as suggested, or use Device Manager to remove the device and then run the Add New Hardware tool in Control Panel.