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Try disabling your firewall/antivirus, or possibly other non-essential programs/services running. Within Steam: Library -> Garry's Mod -> Right Click -> Properties -> Local Files -> "Verify Integrity of Game Cache" Try adding the following lines to the bottom of your garry's mod config file, located at Steam\steamapps\\garrysmod\garrysmod\cfg\config.cfg: cl_allowdownload 1 Make sure Options -> Multiplayer -> Download Custom Content is set to Allow All Custom Files From Server If Internet Explorer can't connect to the internet for whatever reason, then Garry's Mod won't download anything. Posting this question/answer here, since the solution doesn't appear to exist anywhere else (outside of my own steam forums post):Īpparently Garry's Mod uses Internet Explorer somehow for its "FastDL" downloading.
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