OSConfigAgent Error parsing metadata, agent cannot start: network error when requesting metadata

[Ricky_Roo]

hi all,

is there anyone have ever faced this error before?

localhost OSConfigAgent[1843]: OSConfigAgent Critical main.go:112: Error parsing metadata, agent cannot start: network error when requesting metadata, make sure your instance has an active network and can reach the metadata server: Get "http://169.254.169.254/computeMetadata/v1/?recursive=true&alt=json&wait_for_change=true&last_etag=0&...": dial tcp 169.254.169.254:80: connect: network is unreachable

suddenly, i cannot ssh to my machine that only have private ip. i have enabled the IAP, adding firewall rules for the IAP, restart the machine, enlarge the instance, but still i cannot ssh to the machine.

i have tried troubleshoot it the VM status, network status and the permission status everythings results is OK but still cannot access to the machine.

any suggestion?