# PMP450 RADIUS Authentication
**URL:** https://community.cambiumnetworks.com/t/pmp450-radius-authentication/67588
**Category:** PMP
**Created:** [July 29, 2020, 3:42pm UTC](https://community.cambiumnetworks.com/t/pmp450-radius-authentication/67588 "2020-07-29T15:42:51Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@bshiers82501](https://community.cambiumnetworks.com/u/bshiers82501)
#### Post date: [July 29, 2020, 3:42pm UTC](https://community.cambiumnetworks.com/t/pmp450-radius-authentication/67588/1 "2020-07-29T15:42:51Z")
I'm working on moving SM authentication to RADIUS. In our lab we had certificates built up with md5 hashing so I had to re-create them. I have that done and RADIUS setup. I'm able to import my ca-cert into the SM just fine. Whenever I go to import the RADIUS server certificate I'm getting validation failed. I've used the cambium cert generator/signing script off the help site. When I verify the certificate via openssl it shows no issues. Any ideas on what I'm doing wrong?
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### Author:  [@TidalWaveChrisF](https://community.cambiumnetworks.com/u/TidalWaveChrisF)
#### Post date: [July 30, 2020, 5:11pm UTC](https://community.cambiumnetworks.com/t/pmp450-radius-authentication/67588/2 "2020-07-30T17:11:54Z")
Hi, what RADIUS server are you using? If you are using FreeRadius, there may be an extra step that you need to do. Here are some resources: [http://community.cambiumnetworks.com/t5/PMP-450/PMP450-RADIUS-user-authentication-certificate-restrictions/m-p/108123#M8378](https://community.cambiumnetworks.com/t/pmp450-radius-user-authentication-certificate-restrictions/63089)
[http://community.cambiumnetworks.com/t5/PMP-Best-Practices-and-Examples/Using-RADIUS-Server-with-PMP-450/m-p/52305#M22](https://community.cambiumnetworks.com/t/using-radius-server-with-pmp-450/44708)