Q: One of my accounts lost connection while idling (NO STEAM LOGON). Do I have to restart the whole thing?
A: No. Right-click on the sandbox with the disconnected account and terminate programs. Open the Idle.bat and copy the line with the disconnected account. Paste the line into a new .bat file and run it.
Q: How can I idle or login to specific accounts?
A: Look above.
Q: What can I do about instance/blob error?
A: Make a copy of your Steam+TF2 files and run the copy in the sandbox.
Q: Is this bannable?
A: No.
Q: How can I tell if it's working?
A: By checking if it says X connected.
Q: I don't get any items. What's wrong?
A: Learn some patience. In most cases you're just unlucky or Valve item servers are down (most likely after updates). But just to be sure check your internet and Steam connection. Maybe you are drop capped. (
Item drop system - Official TF2 Wiki | Official Team Fortress Wiki)
Q: Does Steam block my IP if I run it multiple times?
A: Hell no. Why should it? I run 8 accounts from the same IP without problems. And what if your brother/sister/dog next door wants to play Steam games at the same time? Blocking IPs is a stupid thing to do for Steam.
Q: How can I prevent random people from joining my server?
A: Use a password by adding +sv_password xxx to the batches from step 3.
Q: Why does Steam validate/verify my files all the time?
A: If you use the mklink method only update TF2 with one account or you enter an endless update cycle. If you get this all the time even when running Steam normally consider redownloading.
Q: I get "Could not connect to Steam network" while login / "File is too large to copy into sandbox". What's wrong?
A: Check your resource access rights from step 3.
Q: TF2 updated and now HL2.exe crashes all the time. Any help?
A: Delete following bin folders: Steam/steamapps/ACCOUNT/team fortress 2/bin and Steam/steamapps/ACCOUNT/team fortress 2/tf/bin .
Q: "Failed to update item schema". What does this mean?
A: Nothing. Ignore it . It doesn't affect drops in any way.