Stuck at Authenticating... but only on one computer!?

[sp000n]

I run my team on two machines. When I go to log the group in, the three accounts on one computer log in just fine but the other computer's two accounts just stop progress at "Authenticating".

I've shut down WoW and restarted. I've tried accounts from the first computer. I've rebooted the machine completely.

None of the above works. Ideas?

*EDIT*
Stranger still, I tried again after posting my plea. Now the three on the main computer are stuck at authenticating but the two on the other computer are able to log in!

[sp000n]

*sigh* I'll have to go back to using my computer for porn.

[Svpernova09]

I've had this happen a couple times, and usually when it does it's because I've mistyped the password or authenticator key a couple times. It's like it is a hidden timeout of bad logins, I'm not 100% as I've not tried to replicate this, but this was my consensus when its happened to me a few times.

[sp000n]

a fair guess, I suppose, but my script logs all of my accounts in at once. If it were wrong on one it would be wrong on all. I've tried several manual accounts also. Moreover, it doesn't matter which accounts I use on either computer. One is stuck and the other isn't.

[heffner]

If the happens to me for what seems like a "long time" I just hit Cancel and it goes to server selection. All good from there.

[Enndo]

About a year ago I was playing on a server named Dethecus. This same thing happened to me for about a week and a half. No one had any explanation, Blizzard blamed my isp, my isp blamed blizzard. It was very frustrating. After research even though I couldnt get this confirmed because ISP's will lie their asses off and blame everyone and everything but themselves, I beleive my ISP was using port blocking and something about that servers location was getting stopped. Anyway since no one could give me any kind of help I moved off that server. It has never happened since.

[Raskaz]

I am having this issue sometimes as well on my Vista machine. What usually does the job for me

Start->run-> ipconfig /flushdns

[HPB]

Sometimes one of my accounts will get stuck on Authenticating as well. I am on one pc and I don't use a router. It goes away after a minute or two, but it is annoying.

[Ughmahedhurtz]

I just started having this problem on one PC this week. Nothing has changed AT ALL on my systems. Very curious indeed. If I see it again, I'll try flushing DNS.

[Catamer]

I had the same problem last night one PC worked, the other would not authenticate and I tried the same account on both PC.
I rebooted the non-authenticator and it worked after that.