Question: Eduroam Authentication From External Institues

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23 May 2016 at 5:27pm

At present we are experiencing issues with users connecting to Eduroam from other institutes.

On average we have 40k unique devices a month internally authenticating to our NPS Radius servers with no internal issues, however at peak times users logging in from external institutes to our realm @Kingston.ac.uk struggle to Authentication with Microsoft NPS logs showing Malformed Packets and the logs from the Eduroam Portal shows;

"May 18 08:19:43 194.82.174.185 #CLIENT=194.82.51.56#IDENTIFIER=sgul.ac.uk#USERNAME=kuxxxxx@kingston.ac.uk#CSI=44-85-00-10-75-bb#OPERATOR=#FAIL"

We have increased the MTU size of the Firewalls but to no avail.

How anyone else seen this issue with NPS? potentially down to congestion?

Regards

Sam Pearson
Networks and Security Manager
Kingston University London

connecting your device to eduroam