topic Some AP's failing Radius test with: The connection attempt to the server timed out. Others: RADIUS server is reachable. Get attributes from RADIUS server: None. What would cause a handful to fail? What do I need to do to see why? in Aerohive Migrated Content

Some AP's failing Radius test with: The connection attempt to the server timed out. Others: RADIUS server is reachable. Get attributes from RADIUS server: None. What would cause a handful to fail? What do I need to do to see why?

mmueller1 — Fri, 07 Sep 2018 02:55:08 GMT

Some AP's failing Radius test with: The connection attempt to the server timed out. Others: RADIUS server is reachable. Get attributes from RADIUS server: None. What would cause a handful to fail? What do I need to do to see why?

Re: Some AP's failing Radius test with: The connection attempt to the server timed out. Others: RADIUS server is reachable. Get attributes from RADIUS server: None. What would cause a handful to fail? What do I need to do to see why?

AnonymousM — Fri, 07 Sep 2018 03:08:39 GMT

The error message is indicating a communication problem. Using SSH or console access from the AP's that are having issues, can you ping the RADIUS server? Also do the devices have a configuration audit? You may need to push a complete upload to the AP's. The last thing to check would be any major changes to the network at layer 3 or the firewall.

Re: Some AP's failing Radius test with: The connection attempt to the server timed out. Others: RADIUS server is reachable. Get attributes from RADIUS server: None. What would cause a handful to fail? What do I need to do to see why?

mmueller1 — Fri, 07 Sep 2018 03:39:42 GMT

I I pushed a complete upload to one of the troublesome AP's. Then SSH into the AP and was able to successfully ping both authentication servers, but, still fail the test. We have had no major changes to the network or firewall since long before this issue started happening. Any other ideas or tools to check. Thanks Keith.

Re: Some AP's failing Radius test with: The connection attempt to the server timed out. Others: RADIUS server is reachable. Get attributes from RADIUS server: None. What would cause a handful to fail? What do I need to do to see why?

AnonymousM — Fri, 07 Sep 2018 04:06:53 GMT

I'm assuming you are running Microsoft NPS as your RADIUS server, you should check the event viewer on the server running NPS. You can find the NPS logs under custom reports, security, and NPS. This will tell you two things... 1. Is NPS hearing communication from the AP? if not, you need to make sure the AP is a RADIUS Client in NPS. 2. you'll get a reason code from the NPS log that will point us to the problem. I'm also assuming your AH config is correct because it's working on some AP's.

Re: Some AP's failing Radius test with: The connection attempt to the server timed out. Others: RADIUS server is reachable. Get attributes from RADIUS server: None. What would cause a handful to fail? What do I need to do to see why?

mmueller1 — Fri, 07 Sep 2018 04:35:56 GMT

Yes we are running Microsoft NPS. After looking at the logs we appeared to have two different problems. Some of the AP's were not listed as clients in the NPS somehow. Others were using DNS names that were somehow resolving to incorrect ip address. Thank you for your help Keith.

Re: Some AP's failing Radius test with: The connection attempt to the server timed out. Others: RADIUS server is reachable. Get attributes from RADIUS server: None. What would cause a handful to fail? What do I need to do to see why?

AnonymousM — Fri, 07 Sep 2018 04:37:38 GMT

Glad to help Mark!!

Keith Cotterman
Aerohive Networks | Sr Systems Engineer
kcotterman@aerohive.com
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