A firewall is blocking inbound traffic on UDP port 3702, which is used to discover the availability of cached content on ...

A firewall is blocking inbound traffic on UDP port 3702, which is used to discover the availability of cached content on this computer. Other computers on the network cannot discover this client. 
To create a Windows Firewall rule that allows traffic on UDP port 3702, run the command "Enable-BCDistributed" from an elevated PowerShell command prompt. If a different firewall is used, modify the firewall settings to allow this traffic.