Can't play online, Doom 2 IWAD somehow missing?

[Laces11]

I went to play using the Doomseeker, and I have Doom 2, but it says the IWAD for the game is not available. I know I need to add the game's files in the "file paths" in options, but I cannot find the game at all. I have the game on my desktop, and I can play Zandronum single player just fine, so the game IS on my computer, yet I can't find the files ! Any idea where the game IWAD would be under when I go to add a file path? Any advice would be greatly appreciated.

And yes, I bought the game legally of Steam.

[Ænima]

I have the game on my desktop, and I can play Zandronum single player just fine,

That means that it's probably in your Zandronum folder.

[Laces11]

I looked under Zandronum, but all that is there are the announcer, doomseeker, and skins. I also have zandronum set as a wad path already.

[infurnus]

You wouldn't happen to be using the Doom 3 BFG Edition copy of Doom2.wad would you? That uses a different version than the standard version that people play online with.

[Zalewa]

You wouldn't happen to be using the Doom 3 BFG Edition copy of Doom2.wad would you? That uses a different version than the standard version that people play online with.

It rather sounds like his Doomseeker doesn't find his WAD at all.

Windows has search option. Try using it to locate doom2.wad.