Got you covered.
Step 1: you need to download the update located here:
Diablo 2 and Warcraft 3Starcraft and Warcraft 2Step 2: Remove ANY lines in your configuration file that have 'VerByte' in it.
Settings -> Edit File -> Config
Ctrl+F
Type in VerByte and hit enter, if its found delete it, repeat until none are found.
If you do not find any VerByte lines, just ignore this step.
Step 3: Open your config file by clicking Settings -> Edit File -> Config. Find the line [Main] and under it put:
SetBNLSServer=Hdx.JBLS.org
If this does not work make sure you firewall accepts the application. Norton Firewall will need this, or any other advanced Firewall that annoys you with the popups, but hey they are much safer
Personally I use Comodo
You should be good to go now!
Any more help just PM me or write back here.