Collection does not restart after crash

I’m using the PMM OVA 1.2.0 on my computer for testing. Collection worked fine over the weekend. Today my computer crashed, so did the VM. After restart, pmm-status check-network displays:

  • Connection: Client <-- Server

SERVICE TYPE NAME REMOTE ENDPOINT STATUS HTTPS/TLS PASSWORD


linux:metrics winelounge-db-linux 1.2.3.4–> 4.3.2.1:42000 DOWN YES YES
mysql:metrics winelounge-db-mysql 1.2.3.4–> 4.3.2.1:42002 DOWN YES YES

Both server and client are in separate networks, behind NAT. I verified that NAT rules are still intact. /var/log/pmm-*.log contains no recent error. When visiting /prometheus/targets, all targets are up. What could be wrong, how can I investigate?