what's the meaning of this issue
```
12:39:04.064 DEBUG       cmds: error occured in call, closing with error: connect QmQYoSNUqjYn3NZPqDU7wJhTjPQpgDLk38njZzKY9rgYEH failure: dial attempt failed: <peer.ID Qm*GFSKvM> --> <peer.ID Qm*9rgYEH> dial attempt failed: failed to negotiate security protocol: privnet: could not read full nonce command.go:79
```

getting thsi trying to connect to a private node