We have noticed that some devices appear in PRTG without a hostname after an Auto-Disocvery. For example, switches in our own network appear in PRTG with their name and IP-address, but some switches in the networks of our customers do not appear with their hostname after an Auto-Discovery. These devices only display their IP-address after an Auto-Discovery
Is there something specific that causes this? It can be solved by adding the name via snmp to a template, but this creates an unnecessary sensor on every switch/device.
We have already looked into DNS settings and this should not be part of the problem, as switches can also appear with their hostname without having an entry in a DNS-server.