Quick update everyone:
Nexus network was attacked recently which is why the wallets are down on Bittrex and Cryptopia. If you are in our Slack group, you would know that Nexus team was successful in fending off this attack to the chain and prevented double spending. We are working to bring exchange wallets back online. These early attacks on the network are good for Nexus, as it strengthens the network and helps us close any attack vectors. Nexus has been under heavy attack since the beginning, but it has escalated intensely over last few months.
Please check here to make sure you are on the correct block height:
http://nexusoft.io/platform/Using the Nexus-QT, go to Help --> Debug Console to see which block your wallet is on.
If your wallet forked off the main chain during the attack, you can fix this fairly easily.
On Windows, make sure you can see Hidden Items (or Hidden Files/Folders) in your Windows Explorer
Then go to C: --> Users --> (PC Username) --> AppData --> Roaming --> Nexus
1. Backup wallet.dat by copying it to another folder
2. Backup any Nexus.conf files you have IF you are mining (you probably won't have any config files if you are not mining)
3. Then Delete everything EXCEPT your wallet.dat and any config files
4. Download the blockchain bootstrap here if you don't want to redownload the whole chain from peers:
http://nexusminingpool.com/downloads/blockchain.rar5. Unpack the database files into the Nexus folder
6. Now run the Nexus-QT.exe client again
7. Wait for wallet to load (can take ~20 mins to load database)
8. After that, go to Help --> Debug Window --> Console, and type: repairwallet
9. You should see your correct balance once the next block propagates
If you need more assistance, our community can provide nearly 24 hour help in Slack:
http://nexusearth.com:3000/Onward, and forward. There is a HUGE update coming soon from Colin with the new Lower Level Database (LLD) and some updates to Trust Key expiration as well. Stay tuned for that update in next couple weeks. We plan to have binaries for Windows, Mac, Linux on that next update as well.
Why would NXS be frequently targeted when there are 50+ cryptocurrencies that are much more liquid? What's in it for an attacker who can hardly convert $1,000 NXS per day into BTC? Greatest respect to the NXS team, but frequent NXS unavailability is trying.