Error in aps and not joining wlc

[Wifi_Eshwar92]

3500 model aps are not joning controller with the below error. Looks to be a bug CSCuq19142. Is there anything we can do for now to make these ap join?wlc code 7.0.235.0

*Apr 19 17:: %PKI-3-CERTIFICATE_INVALID_EXPIRED: Certificate chain validation has failed.  The certificate (SN: 1C0000000) has expired.    Validity period ended on 13:03 UTC Aug 7 2016

[Leo Laohoo]

Is there anything we can do for now to make these ap join?wlc code 7.0.235.0

Upgrade the firmware of the controller.

[Wifi_Eshwar92]

thanks. we will definitely have to plan. But now, we changed the time settings on the controller temporarily to fix this. 

[hamanjam]

We are just now hitting this message.  I can't DL the most recent version because since this went EOL, there is no support available but the download requires a valid support contract.  Is there anything else we can do? 

[patoberli]

Yes, get a valid support contract. Alternatively you can also try to find the image file somewhere on the internet and then compare the md5 checksum as shown in the download overview on the Cisco site. If they match, you might be in luck.