Microsoft NPS - Improving reliability of as an authentication provider for eduroam
August 1st 2014
An article written by Simon Edwins of measeures he investigated to improve the performance and reliability of the organisation's RADIUS service to support eduroam - including adjusting the Max Concurrent Api setting:
https://community.jisc.ac.uk/groups/eduroam/article/improving-reliabilit...
See also this article from Microsoft that explains what tuning you can do with MaxConcurrentApi - this might help with possible authentication bottlenecks: