A number of people are reporting this problem with Nebra Rock Pi miners where it states Miner RPC Unavailable. RPC stands for Remote Procedure Call. RPC allows a user to perform actions on a machine while being on another machine. It can also apply to the same machine but in a different process.
There are two solutions to the problem:
- Restart your miner and see if this fixes it. You might have to try this a couple of times as sometimes it doesn’t work on the first attempt
- If the above doesn’t work, contact Nebra support. They are able to fix this remotely