LocalSend no longer working after using NextDNS

I am able to see my phone from my PC and send files, but not see my PC from phone / send files. This only started happening after I started using NextDNS on my router, PC and phone. 

Have read and tried:

1. turning Windows firewall off
2. Changing LocalSend port from default of 53317
3. Double checking Windows firewall rules to ensure inbound requests allowed on Localsend ports for both TCP and UDP
4. Changing all networks from public to private
5. checked AP isolation not on in router settings
6. Used default ISP DNS as well as NextDNS settings on router, PC, Phone
7. Tried specifying IP address manually in LocalSend, get this error message

[RhttpConnectionException] Connection error. URL: https://192.168.50.62:53317/api/localsend/v1/info (hyper_util::client::legacy::Error(Connect, ConnectError("tcp connect error", Os { code: 65, kind: HostUnreachable, message: "No route to host" })))

1. Uninstalled and reinstalled both Windows and IOS app