LAPs not registering with WLC

[Kaushik Ray]

Hello All

I have a WLC and there were 4 APs already registered to it.

Suddely they have started having problems where in it is not registering to the WLC anymore although they are getting the correct IP address and I can ping these IP addreses

%Error opening flash:/c1240-rcvk9w8-mx/info (No such file or directory)cisco AIR     -LAP1242AG-E-K9 (PowerPCElvis) processor (revision A0) with 27638K/5120K bytes o     f memory.

Also saying its flashing amber and.

Has the IOS got corrupted, will a factory reset fix it?

Thanks

[Leo Laohoo]

Post the complete output to the following commands: 

1.  WLC:  sh sysinfo; 

2.  WLC:  sh time; 

3.  AP:  sh version; and

4.  AP:  sh ip interface brief

[Kaushik Ray]

(Cisco Controller) >show sysinfo

Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 7.6.120.0
Bootloader Version............................... 1.0.20
Field Recovery Image Version..................... 7.6.101.1
Firmware Version................................. PIC 16.0

Build Type....................................... DATA + WPS

System Name...................................... rn-lagos-wlc01
System Location..................................
System Contact...................................
System ObjectID.................................. 1.3.6.1.4.1.9.1.1279
IP Address....................................... 172.28.115.13
Last Reset....................................... Power on reset
System Up Time................................... 0 days 1 hrs 55 mins 13 secs
System Timezone Location.........................
System Stats Realtime Interval................... 5
System Stats Normal Interval..................... 180

--More-- or (q)uit
Configured Country............................... GB  - United Kingdom
Operating Environment............................ Commercial (0 to 40 C)
Internal Temp Alarm Limits....................... 0 to 65 C
Internal Temperature............................. +28 C
External Temperature............................. +32 C
Fan Status....................................... 3800 rpm

State of 802.11b Network......................... Enabled
State of 802.11a Network......................... Enabled
Number of WLANs.................................. 3
Number of Active Clients......................... 0

Burned-in MAC Address............................ CC:D8:C1:40:B0:A0
Maximum number of APs supported.................. 15

(Cisco Controller) >show time

Time............................................. Sat Jan  1 02:03:12 2000

Timezone delta................................... 0:0
Timezone location................................

NTP Servers
    NTP Polling Interval.........................     86400

     Index     NTP Key Index                  NTP Server                  NTP Msg Auth Status
    -------  ----------------------------------------------------------------------------------

I do not have access to the APs that is why I cannot see those details but trying to arrange someone locally to do it..

[Leo Laohoo]

Time and date of the WLC is wrong.  Configure NTP.  If the time and date are wrong, the APs won't join.