CNS refresh failed atfer 3.2.2 firmware update

Hi guys

All my EPMP devices worked fine on config until I upgraded them to firmware 3.2.2 non gps. Now they keep on giving me a refresh failed error. I even rebooted them manually, but stil nothing. The ones that are still on 3.1 works fine. Please help. See logs below:

2017-05-09 15:58:27,998 ERROR ProvisionerRefreshThread.run(): Error while attempting to refresh device.  00:04:56:CF:50:91 may need to be manually refreshed.
java.lang.NullPointerException
com.cambiumnetworks.cnss.services.provisioner.ProvisionerRefreshThread.run(ProvisionerRefreshThread.java:76)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)
2017-05-09 15:58:27,998 ERROR ProvisionerRefreshThread.run(): Error while attempting to refresh device.  00:04:56:CF:9F:01 may need to be manually refreshed.
java.lang.NullPointerException
com.cambiumnetworks.cnss.services.provisioner.ProvisionerRefreshThread.run(ProvisionerRefreshThread.java:76)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)
2017-05-09 16:05:18,715 ERROR ProvisionerRefreshThread.run(): Error while attempting to refresh device.  00:04:56:CF:50:91 may need to be manually refreshed.
java.lang.NullPointerException
com.cambiumnetworks.cnss.services.provisioner.ProvisionerRefreshThread.run(ProvisionerRefreshThread.java:76)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)