Network Lockouts

Is anyone having issues with the Nova meter firmware getting corrupted, trying to access the wireless network with a bad password, and locking out all of the meters?  Our IT guys have a security feature that if an device that is not approved (or incorrect pw) repeatedly tries to access our system, the system shuts everything down.  (I agree with the safety feature!)  Unfortunately Nova is unable to tell us what causes it (possibly the user lets the batteries go dead) and there is no way to find the offending meter without resetting the facility for every meter until the issue goes away.  Would love it if someone has a better way to resolve the issue or has been successful correcting the possible poor behavior.