Dealing with issues related to power failures or network node reboots.

DNS

Cannot resolve address of media node after power failure

Symptom : Can't ping or lookup hostname (e.g. 'pixie')

Further Symptoms : Airplay cannot connect. Usually to the battery powered devices like tablets.

Cause : Node boots before Perimeter Router DNS service is ready.

Further Causes : OpenWRT dnsmasq leases file is scrubbed by a reboot. Network nodes typically resume the lease they held before the power failure. Since dnsmasq has no record of the lease it cannot resolve the hostname.

Fix : Create barebones /etc/network/interfaces and ifup it.