Have u configured ur wireless settings in ur UC 320 . If u configured than check that the DNS is configured correctly.
If these settings are fine than check the WiFi Local Area Network setting of ur laptop. Do the following:
Right click on the Wifi Local Area Network ---> Properties.
In the General tab, under "This connection uses the following Item".
Check the IPV4 & IPV6, select the automatically configure setting for both the IP & DNS settings.
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Windows Vista Support
Driver Updates for Windows XP