This one had me rattled for a bit however, after some heavy googling and testing I discovered that the issue with our wireless Display was due to Intune endpoint management. THIS WILL NEED ENABLING
Adding a Firewall Rule to fix Intune or Azure Directory Casting Problems
Note: This solution requires administrative privileges to implement. If you are a user, please forward this article to your IT
- Go to Microsoft Endpoint Manager Admin Center > Devices > Windows
2. Click Configuration profiles > +Create Profile
3. Select these options
a. Platform: Windows 10 or later
b. Profile type: Templates
c. Template name: Endpoint Protection
4. Name your profile – Something easy to recognise
5. In Configuration Settings expand Microsoft Defender Firewall
6. Scroll to Firewall rules and click Add
13. Basics
a. Name: WUDFHost
b. This name is what will appear in endpoints firewall rules
c. Direction: Inbound
d. Action: Allowed
e. Network types: Private, Public, Domain
14. Application Settings
a. File path: %systemroot%\system32\WUDFHost.exe
15. IP Address and Protocol Settings
a. Local addresses: Any Address
b. Remote addresses: Any Address
c. Protocol: TCP
d. Local Ports: All Ports
e. Remote Ports: All Ports
f. Interface Types: Remote Access, Wireless, Local Area Network
16. Add devices or users
17. Sync Device to get new settings and test.