06-26-2025 06:17 AM
Hello, I'm having a problem configuring my WLC 9800 with Windows NPS 2022 using 802.1x. I can't establish communication. I don't even see a log of attempts in Windows. However, it works with other devices, such as the Airos controller. Here's the configuration I have between Windows and the 9800.
Configuration windows server
No authentication attempts are seen in Windows.
with the airos it is different
06-26-2025 07:11 AM
@Leo TI Start with on overall checkup of your 9800 controller configuration with the CLI command : show tech wireless
And feed the output from that intovhttps://cway.cisco.com/wireless-config-analyzer/
M.
06-26-2025 08:05 AM
06-26-2025 09:21 AM
- @Leo TI The WLCRESULTS are mostly OK and don't give any indicators for this issue ;
Checkout : https://community.cisco.com/t5/wireless/radius-not-working-9800-l-with-windows-nps/m-p/4444871/highlight/true#M231927
M.
06-26-2025 08:30 AM
Select interface from which wlc 9800 connect to NPS
Use mgmt vlan as source.
MHM
06-26-2025 08:40 AM
hi, MHM This is where it says to make the change, right? It doesn't work yet, I don't see any activity in Windows.
06-26-2025 08:55 AM
Can I see from wlc 9800
Show aaa server
MHM
06-26-2025 09:05 AM
06-26-2025 09:46 AM
The transaction is failed
Reason
1- share key wrong
2- radius port are wrong
MHM
06-26-2025 10:43 AM
I reconfigured the key on both devices, both WLC and Windows, the ports are also the ones used: 1812 and 1813, but it doesn't work.
RADIUS: id 2, priority 2, host 172.22.4.195, auth-port 1812, acct-port 1813, hostname serverleo
State: current UP, duration 4294967s, previous duration 0s
Dead: total time 0s, count 0
Platform State from SMD: current UP, duration 4294967s, previous duration 0s
SMD Platform Dead: total time 0s, count 0
Platform State from WNCD (1) : current UP
Platform State from WNCD (2) : current UP
Platform State from WNCD (3) : current UP
Platform State from WNCD (4) : current UP
Platform State from WNCD (5) : current UP
Platform State from WNCD (6) : current UP
Platform State from WNCD (7) : current UP
Platform State from WNCD (8) : current UP, duration 162s, previous duration 0s
WNCD Platform Dead: total time 0s, count 0UP
Quarantined: No
Authen: request 23, timeouts 9, failover 10, retransmission 7
Response: accept 0, reject 11, challenge 0
Response: unexpected 0, server error 0, incorrect 0, time 97ms
Transaction: success 14, failure 2
Throttled: transaction 0, timeout 0, failure 0
Malformed responses: 0
Bad authenticators: 0
Dot1x transactions:
Response: total responses: 11, avg response time: 191ms
Transaction: timeouts 1, failover 6
Transaction: total 12, success 0, failure 12
MAC auth transactions:
Response: total responses: 0, avg response time: 0ms
Transaction: timeouts 0, failover 0
Transaction: total 0, success 0, failure 0
Author: request 0, timeouts 0, failover 0, retransmission 0
Response: accept 0, reject 0, challenge 0
Response: unexpected 0, server error 0, incorrect 0, time 0ms
Transaction: success 0, failure 0
Throttled: transaction 0, timeout 0, failure 0
Malformed responses: 0
Bad authenticators: 0
MAC author transactions:
Response: total responses: 0, avg response time: 0ms
Transaction: timeouts 0, failover 0
Transaction: total 0, success 0, failure 0
Account: request 0, timeouts 0, failover 0, retransmission 0
Request: start 0, interim 0, stop 0
Response: start 0, interim 0, stop 0
Response: unexpected 0, server error 0, incorrect 0, time 0ms
Transaction: success 0, failure 0
Throttled: transaction 0, timeout 0, failure 0
Malformed responses: 0
Bad authenticators: 0
Elapsed time since counters last cleared: 17w3h43m
Estimated Outstanding Access Transactions: 0
Estimated Outstanding Accounting Transactions: 0
Estimated Throttled Access Transactions: 0
Estimated Throttled Accounting Transactions: 0
Maximum Throttled Transactions: access 0, accounting 0
Consecutive Response Failures: total 0
SMD Platform : max 0, current 0 total 0
WNCD Platform: max 0, current 0 total 0
IOSD Platform : max 0, current 0 total 0
Consecutive Timeouts: total 6
SMD Platform : max 0, current 0 total 0
WNCD Platform: max 3, current 0 total 3
IOSD Platform : max 3, current 0 total 3
Requests per minute past 24 hours:
high - 3 hours, 42 minutes ago: 0
low - 3 hours, 42 minutes ago: 0
average: 0
06-26-2025 12:03 PM
What is l2 or l3 authc of wlan you use ?
MHM
06-26-2025 01:14 PM
06-27-2025 02:49 AM
I can not know what issue is
so try packet capture to capture packet between the WLC and NPS
https://www.youtube.com/watch?v=7TXVqm3Rpmw
how to use packet capture is shown in video
share capture here
06-26-2025 07:58 PM
Most of the time it will be either shared secret or port but as you have mentioned both are verified, could you please take an EPC in WLC and see if you are seeing the radius packets going out from the WLC?
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