We upgraded our Cisco 3745 routers from c3745-advipservicesk9-mz.123-14.T7.bin to c3745-advipservicesk9-mz.124-7h.bin due to errors encountered when reloading the router. Problem though is that after the upgrade we cannot access the router on Ciscoview. An error would popup stating snmp version 3 error. The snmp configuration on the router was still the same and we have not changed anything under Device Credentials. The resolution that we had was to downgrade to snmp version 1 and rediscover the device. When Ciscoview is successful, we upgraded it again to version 3 and re-check Ciscoview.
How come we need to downgrade to version 1 and reconfigure again version 3 in order to manage again the device? Is this a bug on Ciscoworks LMS 3.0? Appreciate your feedback on this. Thanks in advance.