After trying to enroll a 1712 router with a CA, my router kept requesting and being granted certificates, but didn't appear to be able to write them to flash/nvram. After rebooting, the VPN module produced the following error:
Error: %C1700_EM-3-NVRAMFAIL : VPN Module could not read its own NVRAM configuration: ([dec])
Explanation An NVRAM error has occurred, preventing the VPN module from being able to read its own NVRAM configuration.
Recommendation: Call tech support!
I am studying CCSP on my own and bought the router used, so I don't have access to tech support. Removed the module and the CA enrollment and VPN work fine, but I would still like to know the cause and solution to this problem.