WLan connection

I have recently lost internet connection after Upgraded my vista to serivce Pack 2. Except that my laptop gives me msg: exception Message-Acer system is not recognize. I have feeling that those two problem are connected.
the msg in relation with net connection: Windows could not start the wlan autoconfig sevice on local computer. Error: 0x80040154. So I type in command prompt ipoconfig/all and after pressing enter it says:
Wireless Lan adapeter wirless Network connection:
Media state: media disconnected
Connection specific NDS Suffix: Belkin
Physical Address 00-1E-4C-51-3C-88
DHCP Enabled yes
autoconfiguration anabled yes
Tunnel adapter Local Ara Connection
Media state: media disconnected
connection specific dns suffix
description isatatp. Belkin
Physical address: 00 00 00 00 00 00 e0
DNCP enabled No
autoconfiguration enabled Yes
Tunnel adapter local area connection
Media State Media disconnected
Description Reredo Tunnelig Pseudo- Interface
DHCP enabled
Autoconfiguration Enabled Yes

anyone know how to fix my net connection??? Please help