First, make sure MC 19 isn't running at the same time. If you just upgraded from MC19 to MC20, and you had the Option to start MC automatically in the System Tray (Media Server) enabled, I've seen it get all borked up after rebooting where you end up with MC 19 running in the tray instead of MC 20, and then you launch the "full" MC 20 by running it.
So, close any running copies of the MC UI. Then, check down in the system tray (the icons by the clock). If Media Server is running there, Right-Click on it and choose Show Media Center. Then, in the copy of MC that launches, check the version number under
Help > About. If it is MC19, then you still have that set to launch on Boot and it is probably messing you up. You can shut it down in MC19 via
Tools > Options > Startup > Windows Startup.
You can have both MC19 and MC20 installed at the same time, but you can't RUN them at the same time. Like I said, it should upgrade okay, but I've seen this get messed up, and you wouldn't notice it or have trouble until you reboot for the first time. So, maybe that just happened to you.
Assuming that isn't it, there are
three things you can try:
Thing One:0. Reboot (don't skip this because you are lazy).
1.
Download MC 20.0.41 manually and install it over-top-of of your current (broken) installation.
2. Reboot again.
3. Try again.
If that doesn't work, try
Thing Two:
1. Make a
Library Backup in Media Center and save the ZIP file somewhere you can easily get to it.
2. Uninstall the broken copy of MC 20. When uninstalling
DO NOT REMOVE either your Library or your Settings (just in case you mess this up, that's why we made the backup first).
3.
Download MC 20.0.27 manually and install it over-top of your current (broken) installation.
If that works, then try upgrading to MC 20.0.41 again with the updater you downloaded in
Thing One and try updating to the newer build again. If it worked after Thing Two, but then this breaks it again?
Please immediately come here and tell us, because that almost certainly means you copy of MC 20 wasn't just broken, but that MC 20.0.41 itself is broken in certain (esoteric) ways.
If Thing Two doesn't work, then try
Thing Three:
1. Uninstall the broken copy of MC 20. When uninstalling this time, DO select the options to remove both the Library and the Settings (you did make that backup in
Thing Two,
RIGHT?).
2. Reinstall the copy of MC 20.0.27 using the installer you downloaded in THING TWO and install it.
3. Open it up and see if you can enable Media Network.
4. Assuming you can,
restore the Library part of your Backup, but not the Settings.
5. Restart MC entirely (this includes shutting down the Media Server in the System Tray, if enabled).
6. Check to see if