Mandatory Authenticators?

[Fizzler]

I went ahead and downloaded the authenticator for my Itouch. Better safe than sorry I suppose.

[Akoko]

Is a separate authenticator needed for each account?

[MiRai]

Is a separate authenticator needed for each account?

No the same authenticator can be used on multiple accounts.

Keep in mind though you can only use one authenticator code per battle.net account at a time. You must wait for the authenticator to produce another code [like 30 seconds?] before you can login the next account on that BNet account. I called Blizzard 2 days ago to have them separate my BNet account so I can once again use 1 code to login 5 accounts. The process was very painless [minus the hour that I was on hold] and the guy I was talking to didn't even know that they had changed it to 1 code per account [it used to not be like this]. You can only separate your BNet account by calling phone support. It's always been like this and I asked the representative to confirm when I called and he said that calling is still the only way to separate them.

[David]

I disabled it again. It sucks big time. Take 5minutes to login with 5 accounts because it constantly says the info entered is not correct on 2-3-4 of the accounts while I login at the same time.

[Vecter]

I disabled it again. It sucks big time. Take 5minutes to login with 5 accounts because it constantly says the info entered is not correct on 2-3-4 of the accounts while I login at the same time.

If all your accounts are under 1 b.net account then you need to enter 1 code PER login, it no longer works for all 5. You can do what Fenril did and create 5 different b.net accounts and have 1 toon per, at this point the 1 auth code works for all 5.

[Khatovar]

I disabled it again. It sucks big time. Take 5minutes to login with 5 accounts because it constantly says the info entered is not correct on 2-3-4 of the accounts while I login at the same time.

It's really not that horrible. I log in one, by the time I'm loaded in, the code is ready for the next toon. I log in my alchemists first and by the time my gem transmutes are done, all my toons are in.