1. Join the Warehouse Discord server via invite link - https://discord.gg/fwkQmPGtfa
2. Complete verification with Double Counter bot.
Note: This requires “Allow direct messages from server members” to be enabled in your Discord “Privacy and Safety” settings,
you will then need to leave and re-join the Warehouse server.Use wh-register gh3_pc
in #bot-channel.
3. Message /wh-register
and select Guitar Hero 3 (PC)
in the #bot-channel
4. Complete registration in DMs with the bot
1. Press the Windows key.
2. Type Notepad in the search field.
3. In the search results, right-click Notepad and select Run as administrator.
4. From Notepad, open the following file:
c:\Windows\System32\Drivers\etc\hosts
If you can't see it - make sure you have selected all files, instead of text files.
5. add the following lines to the end of the file:
3.73.251.183 GH3-PC.LSG.MMP3.DEMONWARE.NET
3.73.251.183 GH3-PC.AUTH.MMP3.DEMONWARE.NET
3.73.251.183 stun.us.demonware.net
3.73.251.183 stun.eu.demonware.net
3.73.251.183 stun.jp.demonware.net
3.73.251.183 stun.au.demonware.net
6. Select File > Save to save your changes.
To improve connectivity between clients - forward port 3074 UDP. If you have know idea what is it, or how to do it, just Google:%your router model name or brand% port forwarding
This should provide you with sufficient number of guides about how to do it.