Rats Impervious to Attack?

[Pandar]

I am very new to the game, so please forgive me for the newbie question.

Whenever I try to attack rats or anything else, I get the message "Impervious to Attack" I have tried with several different characters with the same result. I received the same message in the intro mini-quest. I do not have any combat skills,  and my Str is 56.

If I can not attack rats, are the other options?

Thanks in advance for your help,

[Dajoji]

That means the NPC server is off. They have been testing server stability and that could be one of the reasons why they are currently impervious. They will come back up though. It could take a few hours or a couple of days. Just be patient.

[LigH]

Is our board search function defective?