Microsoft says computers with a wireless wide area network (WWAN) LTE modem may lose Internet connectivity after installing the latest Windows 10 cumulative updates. Windows 10 devices using WWAN LTE modems may not be able to connect to the Internet, but Windows 10 will indicate that everything is working correctly. Microsoft states that they are working on resolving this issue and hope to have it fixed in an “upcoming release”” Update 5/23/20: All recent Windows 10 updates are facing this problem
Source: security