FWIW, I am running Windows 10 with AirPort Utility v5.6.1 and am not having any issues "seeing" either my 802.11n or 802.11ac base stations in the utility. At this point in time, I am running Windows 10 Pro, version 1607, OS Build: 14393.693. The PC I'm running it on is connected to the network by Ethernet.
The AirPort Utility requires both IPv6 and Bonjour (aka, mDNS) to find the base station before it can appear in the utility. For Windows since Windows 7, Microsoft has make IPv6 Link-local the default address assigned to each of the host's networking interfaces. Bonjour, on the other hand, is not included with the Windows OS as it is an Apple propriety IP protocol. However, Windows does have its own version of Zero Configuration Networking (ZCN), aka, "Plug & Play" ... but the AirPort Utility does not use it directly. One thing to check is to verify that Windows software firewall or any anti-virus program is NOT blocking Bonjour.
Link-local IPv6 address always start with 'fe00.' You can verify that your Win10 computer's network interfaces are assigned these addresses by using either ipconfig, netsh interface ipv6 show address, or route print via the Command Prompt.
Bonjour can be installed in at least three ways (Note: Installing Bonjour does not interfere with Windows native ZCN functionality):
- Bonjour for Windows
- Installing the AirPort Utility for Windows
- Installing iTunes
To verify that the AirPort Utility & Bonjour installed properly for Windows 10, there will be two applications listed in the Apps & Features window: 1) AirPort & 2) Bonjour.
- The AirPort Utility for Windows is 32-bit but can run on either 32- or 64-bit versions of Windows.
- Installed file locations:
- dnssd.dll located in C:\Windows\SysWOW64\ (32-bit)
- dnssd.dll located in C:\Program Files (x86)\AirPort (64-bit)
- mDNSResponder.exe in C:\Program Files (x86)\Bonjour (32-bit)
- mDNSResponder.exe in C:\Program Files\Bonjour (64-bit)
- APUtil.exe, APAgent.exe, & APDiskPrefs.exe in C:\Program Files (x86)\AirPort (32-bit)