git pull in sentinel folder. no restart needed
Technically the nodes are not down, they just failed to vote on a watchdog object.
As a sidenote: Dash 12.2 will not have watchdogs anymore, they are deprecated.
This is required or your Masternode will go offline!
(edit: Apparently w/spork 14 off this isn't enforce, so crisis averted!)
Sentinel should not be executed, it must be interpreted in a virtual environment. If you run /venv/bin/python bin/sentinel.py and get no output, then everything is working perfectly and your masternode is alive, online and recognised by the network.
Did you do a git pull for sentinel ? The git pull updates sentinel to 1.0.2Even if list full | grep returns WATCHDOG_EXPIRED?