That is normal behaviour. I had the same doubt myself and @flare explained it to me. When the QT says "successful" it means it successfully sent the signed message to the nodes. It does not necessarily mean that the node successfully activated.
Could be for several reasons (bad config, ban, on a fork, etc), but the best thing to do to troubleshoot is
- shut down the node daemon for more than an hour, for it to drop
- check all the configs (ip's, genkeys, tx hashes, etc), including QT
- update the daemon if not already, and QT
- start the nodes reindexing the blockchain (fix forking) + QT
- let it sync up to block height and check latest block hash to verify if they are all on the correct chain + QT
- Start-many
I think that should do it.
For the miners, the same procedure, but please check "masternode winners" to see if you have a populated winner's list. If not, don't start mining. Wait until you have winners list and then you're good to go.
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