My s4 can't connect to my schools Wi-Fi saying 'authentication error occurred'?

I got given the password by the principal and now my phone can't connect and my friends s4 and my other friends nexus 7 can't connect having the same problem but all other devices do like an iphone or a s3

What type of security does the network use? Should say something like WPA or WEP. It could be using WEP which is old and unsupported by some devices.

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