Steam API Fail on one PC but not the other

Development Platform & Builds
, , ,
1

I have a problem with Steam API on one of two PCs I have.
Steam Overlay and networking runs flawlessly on one PC, but it fails on the other.
Here’s the log:

LogOnline:Display: STEAM: Loading Steam SDK 1.32
LogOnline:Warning: STEAM: Steamworks: SteamUtils() failed!
LogOnline:Warning: STEAM: Steamworks: SteamUser() failed!
LogOnline:Warning: STEAM: Steamworks: SteamFriends() failed!
LogOnline:Warning: STEAM: Steamworks: SteamRemoteStorage() failed!
LogOnline:Warning: STEAM: Steamworks: SteamUserStats() failed!
LogOnline:Warning: STEAM: Steamworks: SteamMatchmakingServers() failed!
LogOnline:Warning: STEAM: Steamworks: SteamApps() failed!
LogOnline:Warning: STEAM: Steamworks: SteamNetworking() failed!
LogOnline:Warning: STEAM: Steamworks: SteamMatchmaking() failed!
LogOnline:Display: STEAM: OnlineSubsystemSteam::Shutdown()
LogOnline:Warning: STEAM: Steam API failed to initialize!
LogOnline:Display: STEAM: OnlineSubsystemSteam::Shutdown()
LogInit: WinSock: version 1.1 (2.2), MaxSocks=32767, MaxUdp=65467

So:

  • I have 2 PCs, they are on the same network.
  • I have 2 separate Steam accounts
  • Project copies are on both PCs, running Standalone (separate process) through the engine in both cases
  • Since projects were copied, all settings in EngineDefaults.ini and Build file are also correct
  • Windows 10

I have a feeling that it may be a problem with Steam installation. I had Windows reinstalled some times ago, after which I just ran the steam.exe which was already on my harddrive, it re-initialized everything and Steam worked without any bugs after that, from gamer’s perspective. Maybe some minor things, like not being able to find Steam through Win + Search

But anyway I downloaded Steam installer and ran it again, re-installing Steam over itself in the same folder. It seemed to fix some minor things, but the error persists in the engine.

I don’t like the idea of making fully clean reinstall, because I have a lot of games already installed, some modded, and this is a gaming PC, not working one, so I would prefer to tinker and fix the existing installation, rather than wiping everything and installing it again.

So, any ideas? What can be wrong with steam in this case? Maybe some registry problems or something? How does it find the engine, how does it initialize to connect Steam and UE project?

And thanks for your time.

2

I found the solution to my problem.

I was running steam with Administrator privilegies, but I had to run it WITHOUT Admin priviligies, in regular mode.

It seems that in Win 10, in most cases, processes can’t interract with each other if they are run with different access levels. Hm, weird security measure, I guess, but yay, at least it works now!