@BICT Networkadmins wrote:
Hello cjoseph,
We have 3 SSID's enabled. One for production, offices and visitors.
Our backend radius servers are Windows 2008 R2 domain controllers running the latest windows patches.
It seems that the problems are not location related.
We have at this moment 86 clients connected to 8 AP's with a max of 28 clients to a single AP (moving 1.39 Mbps of traffic)
While checking the RF Dashboard, I noticed an Alert.
Does this mean that clients can sometimes not reach the radius server?
Or could this be authentication failures from clients?
Kind regards,
Tim De Coen
Tim,
Make sure you have Broadcast Filltering set to ALL for all 3 of your SSIDs. This is important
Is the ORODC003 the only radius server that shows down intermittently? If it is the only one that seems to have problem, consider removing it as a radius server and only use one.
If both radius servers show that they are down, we need to look at the path between the Instant APs and the radius server:
How are the instant APs powered?
Can you look at the switchports that the instants are connected to and see any errors, crcs, etc?
Could they have possibly negotiated to the wrong duplex and speed?
Can you take a look at the radius server(s) to see what is their CPU utilization in task manager?
Are you using the radius server(s) for anything else?
Can you take a look at your radius server ports on the switch to make sure there are no duplex errors or mismatches?
The radius servers showing out of service is a serious issue that needs to be resolved. That should not be happening on a reliable wired network.