I have an internal IP Address (192.168.0.57) that every couple of days will get assigned to a machine which will then periodically lose it's connection to the network throughout the day.
The first machine that this happened to was running OSX and the rest have been Windows. Neither OS has detected an IP conflict.
When I ping the hostname of the machine I know it's been assigned to, it will give me back the IP in question. When I ping -a the IP, it gives me a completely different hostname.
I can't find any machine on the network that has the second hostname. Is this an issue with the DNS? What could cause this?