We have created 4 instances in one collector linux DMZ server. We have restarted the collector services but the collectors are not comming up on dynatrace appmon 7.1. we checked on the log filesthere we found below few warnings as
"AppMon Agent HTTP Adapter startup failed on collector"
"Could not resolve FQDN for IP using fallback as hostname"
We have connected the collector to dynatrace server but also getting below warning
"Collector will not accept Agent connections until initially connected to a dynaTrace Server".