To add these registry values, follow these steps: 1.Click Start, click Run, type regedit in the Open box, and then click OK.
2.Locate and then click the following subkey in the registry:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetservicesRasManPPPEAP13
3.On the Edit menu, point to New, and then click DWORD Value.
4.Type TlsVersion for the name of the DWORD value, and then press Enter.
5.Right-click TlsVersion, and then click Modify.
6.In the Value data box, use the following values for the various versions of TLS, and then click OK.