If you download wallets from here http://cryptomagic.com/files/magi-release/testnet/, they will automatically connect. I just opened up nodes, you might try again.
What about deleting the prior block data (rm -rf ~/.magi/testnet2), and then rerun the wallet.
That's worked thanks. With regards to the miner, if I run as many threads as I have CPU cores, I see that my CPU usage is only at about 20% and each thread returns ~ 50khash/sec. If I run more threads CPU usage goes down but each thread still returns ~ 50 khash/sec. So is that reporting the hash rate accurately?