Devices with static IPs can coexist peacefully on a network where DHCP is present, as long as the DHCP server doesn't try to hand out the same address you are manually assigning.

Manage your network In addition to scanning for network devices, iNet Network Scanner will scan for Bonjour services being offered on the next work and allows you to view those services by device.

Nmap is a free network scanning software for Windows, Linux, macOS, etc. which can be used to check ping status, scan network, check uptime of any host, etc.

iNet Network Scanner provides insight into local internet and Bonjour traffic and access to network-based services.