Hi All-
I am upgrading a small site from an autonomous 3602 to a 9120 EWC. I have a bunch of IoT devices that are having problems connecting. Theie sessions fail about 50% of the time. Debug analyzer shows this:
Time Task Translated
| 2024/10/10 03:39:17.899 | client-orch-sm | Client made a new Association to an AP/BSSID: BSSID 2416.1be4.0f00, WLAN TLiot, Slot 0 AP 2416.1be4.0f00, c9120-Tyne-1, Site tag default-site-tag, Policy tag default-policy-tag, Policy profile IoT_policy_profile, Switching Local, Socket delay 0ms |
| 2024/10/10 03:39:17.901 | dot11 | Association success for client, assigned AID is: 2 |
| 2024/10/10 03:39:17.921 | client-keymgmt | Negotiated the following encryption mechanism: AKM:PSK Cipher:CCMP WPA Version: WPA2 |
| 2024/10/10 03:39:17.921 | client-auth | Client successfully completed Pre-shared Key authentication. Assigned VLAN: 192 |
| 2024/10/10 03:39:17.921 | client-orch-sm | Policy profile is configured for local switching |
| 2024/10/10 03:39:17.921 | client-orch-state | Starting Mobility Anchor discovery for client |
| 2024/10/10 03:39:17.924 | client-orch-state | Entering IP learn state |
| 2024/10/10 03:41:17.924 | client-orch-sm | Controller initiated client deletion with code: CO_CLIENT_DELETE_REASON_IPLEARN_CONNECT_TIMEOUT. Explanation: Controller did not learn client IP address in the allowed time. Actions: Check DHCP server and client IP configuration. Validate if DHCP required is set and client is performing DHCP negotiation. If all is correct, collect RA traces and EPC |
9800 WLC Advanced Debug Insights (
Help)
Client MAC Address Success Sessions Failed Sessions Start Time End Time
| 2462.ab47.f040 | 59 | 22 | October 10, 2024 02:24:48:933000 | October 10, 2024 12:10:33:692000 |
Again, this is happening about 25% of the time. 802.11g clients, they come and go. I think they may all come and go at the same time.
This is a 9120 running EWC 17.9.5 with just the single AP. I have disabled Fast Transition and PMF. There is a bug for the non-EWC controllers that suggests turning off DHCP required - I do not see an option for that on EWC. Similarly, I would like to extend or disable session time-out - i do not see that option
Any help would be appreciated.
