Keys and certificates used for Netconf over TLS are configured using the RPCs in the opendaylight:netconf-keystore Yang model. After a restart of ODL, the netconf connector is unable to find keys and certificates that were configured before the restart. It throws an exception saying for example "Unable to find private key".

The keys and certificates can be read out over the restconf interface also after a restart, so they seem to be persistently stored. But internally, the netconf connector seem unaware of them, or unable to find them after the restart.