PC Launcher Issues

Ever since I started playing again (about 2 months ago) I've been having intermittent issues with the launcher.

I am running on Windows 10 64-bit.

A number of things happen with the launcher when it has issues:
-It will hang on the version check
-It will tell me that it can't tell if I have the correct version
-The launcher will open, but just be a black box (like the background loaded and that was all).
-The launcher loads, but where I am supposed to put my login credentials does not load.

What can I do to fix this?