I got number of AP showing the error message of " Timed out while waiting for ECHO repsonse from the AP" from WLC version 7.4.100,
I checked the POE switch is no power flappiing, checked the connectivity between AP and WLC seam ok...
My issue is client randomly cannot get DHCP on a WPA2 SSID, what we do is remove the AP and join back.
Please advice any tShoot Step I can perform?
(Cisco Controller) >show ap join stats detailed 7c:ad:74:50:3c:c9
Sync phase statistics
- Time at sync request received............................ Not applicable
- Time at sync completed................................... Not applicable
Discovery phase statistics
- Discovery requests received.............................. 20
- Successful discovery responses sent...................... 20
- Unsuccessful discovery request processing................ 0
- Reason for last unsuccessful discovery attempt........... Not applicable
- Time at last successful discovery attempt................ Apr 13 12:32:48.347
- Time at last unsuccessful discovery attempt.............. Not applicable
Join phase statistics
- Join requests received................................... 9
- Successful join responses sent........................... 9
- Unsuccessful join request processing..................... 0
- Reason for last unsuccessful join attempt................ Not applicable
- Time at last successful join attempt..................... Apr 13 12:32:59.088
- Time at last unsuccessful join attempt................... Not applicable
Configuration phase statistics
--More or (q)uit current module or <ctrl-z> to abort
- Configuration requests received.......................... 27
- Successful configuration responses sent.................. 9
- Unsuccessful configuration request processing............ 0
- Reason for last unsuccessful configuration attempt....... Not applicable
- Time at last successful configuration attempt............ Apr 13 12:32:59.343
- Time at last unsuccessful configuration attempt.......... Not applicable
Last AP message decryption failure details
- Reason for last message decryption failure............... Not applicable
Last AP disconnect details
- Reason for last AP connection failure.................... Timed out while waiting for ECHO repsonse from the AP
- Last AP disconnect reason................................ Unknown failure reason
Last join error summary
- Type of error that occurred last......................... AP got or has been disconnected
- Reason for error that occurred last...................... Timed out while waiting for ECHO repsonse from the AP
- Time at which the last join error occurred............... Mar 22 18:20:21.369
AP disconnect details
- Reason for last AP connection failure.................... Timed out while waiting for ECHO repsonse from the AP
Ethernet Mac : 7c:ad:74:50:3c:c9 Ip Address : 10.0.10.110
--More or (q)uit current module or <ctrl-z> to abort
