Occasional Contributor II
Posts: 19
Registered: ‎05-22-2016

Internal Server Error

Hi, I have a local controller and a DMZ controller setup, i have an external captive portal and Guest self-registration enabled. Under my Guest self-registration profile i have NAS vendor setting with "send Cleartext password over HTTP"

aruba 1.JPG, everything is working, I am just curious why when credentials are sent over HTTP and the credential are either invalid or expired it shows "Internal server error"

aruba 2.JPG

but when HTTPS is selected under NAS vendor setting if the credentials are wrong it send you back to the captive portal with an "authentication failed "null"?? 


aruba 3.JPG


I know that i can select Pre-Auth and avoid this but for me is not an option since i am using an external authentication souce "Active directory" I am attaching a couple of screenshots so all makes more sense. BTW i am using OS Version on the controllers.



Guru Elite
Posts: 7,864
Registered: ‎09-08-2010

Re: Internal Server Error

A couple of things:

  1. Pre-auth can be used with non-guest sources. You just have to choose RADIUS or application and then create a service in ClearPass to handle the request
  2. Looks like you're using the default controller certificate. Please replace it.

Tim Cappalli | Aruba ClearPass TME
@timcappalli | ACMX #367 / ACCX #480 / ACEAP / CWSP
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