Hi

I have tried following the steps listed in the clean install link here multiple times on a new laptop (I have the game working on an older one):

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I do a clean install from Steam. My game is called "Age of Empires II (2013)" instead of "Age of Empires II: HD Edition", though the image does say "HD Edition" (see attached image)

In the Voobly lobby I get the message that my game is not compatible. When I click Yes, nothing happens. But I manually downloaded the Compatibility pack and installed it. Then when I open a New Lobby, the diagnostic is clean (see attached images)

But when I open a lobby I still get Game not found error (see attached image). Also when I join a game, if complains I don't have the correct Mod, but those never download either

Perhaps your problem is related to this. Do you have AVAST installed on your computer?
https://www.voobly.com/forum/thread/342096/:1425876#post1425876

I don't have AVAST but I do have Symantec Endpoint Protection installed. My best guess is the same that its blocking something.