According PRTG manual it not support more than one Active Directory domain, but as far as i understand this technical limitations refer only to Domain Group and Domain Account usage. Any way, we plan to use PRTG from one domain to monitor PC's from another subdomain, and already successfully install Remote Probe on subdomain server. Right now we want to decide which account type we will delegate for subdomain System Administrators. Variant one - Unnamed Service Account from parent domain or internal PRTG user accounts. Can you help me to understand major differences between this two variants?