I ran into a problem where a laptop takes several minutes to login and I narrowed it down to the ZT network adapter. Even when the PC is offline (wifi is disconnected) the ZT network adapter tells Windows that it’s connected and so Windows tries to send traffic out the ZT adapter (sent packet count keeps going up). This also makes apps think that there is an available network connection and so they often time out waiting for network traffic that never comes.
Airplane mode is inconsistent with this behavior, but simply being disconnected from wifi always does this.
I removed ZT, deleted all the ZT folders and registry keys, and reinstalled the latest build and the same thing happens.
I appreciate any fixes anybody has for this problem.