For more details please check the current BToE Release notes
BToE Discovery is sent from the Phone to the BToE App to discover the Phone.
udp.port == 2081
If you are unable to see the above a Firewall on the PC is blocking theBToEDiscovery
If you can see the above butBToE still not offers to pair and prompt the user to enter their credentials on theSkypefor Business client then a local policy or as an example,SymantecEndpoint Protection blocks the communication.
Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels. Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's