Troubleshoot

Wallet

Symptoms:

Does not sync. There is a guide on the Community forum, and here Fixing no sync.
Crash on start up. There is a guide on the Community forum.
Transaction stuck. Try deleting the downloaded blockchain, and resync, we can find the default location here:

Windows: %AppData%/Roaming/Raven
Mac: ~/Library/Application\ Support/Raven
Linux: ~/.raven

Extra amount of rvn went missing when I transferred coins out of the wallet.

Try from withing the wallet: Help / Debug Window / Console: and write

listaddressgroupings

This will list all your addresses and their balance. Check for the "missing" amount.

This appear to be a display issue that happens rarely.

All miners

Symptoms:

Crash on startup. Check if Antivirus/Windows defender has deleted your miner.exe file, check if the .exe file is still in your folder. Fix by setting an exception.
Crash/reboot after some time. Check the power limit for the cards, 65% - 85% is common. x16r algo spikes the power draw so we need headroom in available wattage. Remember that the TDP for a card is an average draw of the card and in short spikes the total draw can be much higher. This is why the GPU manufacturers recommends much higher watt PSU than the TDP listed wattage of the cards would otherwise suggest.
Naming you Rig on the pool. On yiimp type pools you can use the password field like: -p c=RVN,TitanV ,a comma is used to separate arguments, do not use special character or spaces in your rig name. Other pools usually set name by WALLET.rigname like: -u RT2r9oGxQxbVE1Ji5p5iPgrqpNQLfc8ksH.titanV

Nevermore / ccminer:

Symptoms:

Crash on startup. Check .bat file that name miner at the start is the same as the miner in your folder. Nevermore uses 'ccminer' 2.2.5 might be 'ccminer-x64'.
Suprnova gives error on launch. Check that you have created a worker on their webpage and supplied a password.' -u LOGIN.worker -p x ',also check their getting started on rvn.suprnova.cc start page.
Hash rate is changing/low. This is normal as the x16r algo is changing 16 times in each block, determined by the last 16 bits of the last block. We need to look at a 2-3 hour averages at least to get a better average hash rate to compare, try adding ' -N 300 ' at the end of your bat file, it increases the average reporting time (default is 30).

Sgminer:

Symptoms:

Crash on startup try adding ' --gpu-platform 1 ' or ' --gpu-platform 2 ' Brian has a good Getting started wiki on github
Long startup time First time sgminer starts it compiles a kernel for all the cards, it can take several minutes.

General tips and tricks: