Haha, interesting. You have the “Plex Server” installed on your NAS AND your windows computer. Well, we might need to straighten out some terminology then.
COMPUTER LESSON! YAAY!
A “server” is a bit of software that simply “serves” information to another (a “client”). Plex is a combo system, where all "clients (Plex Media Player, Plex For Windows, Chrome browser, etc) connect to a “server” program running somewhere and is fed the media. If you play online games, you know the term “server” refers to the computer that your game “client” connects to to play a game. Alternatively, Netflix has “servers” all over the world, and your “Netflix app” on your phone or TV connects to the servers to get the media.
Plex works the same way, in that you have a “server” program that simply looks at your hard drives for media, figures out what they are based on the name, then “serves” that media to “clients” like a browser to be able to watch and enjoy.
Now, here is the interesting bit: Server software is usually invisible. That is, it serves data to clients automatically, without some dude sitting at a computer to pull a switch to send the info. Because of this, server software tends to NOT show anything when it is running. On your NAS, you don’t have to have a window open to your NAS to keep the server running. This is why, when you ran the “Plex Server” software on your computer, nothing happened other than a tiny icon in your taskbar. That means it is running. Once it was running, then going to the web page 127.0.0.1/web finally worked, showing a web page, or some text.
I think you must have installed the Plex server files on your Windows computer while messing around trying to get things to work. If you do not know the difference between client and server (a thing I don’t expect lots of people to know), it’s easy to install the wrong program, realize it didn’t do what you want, and install the client and THAT now works fine.
The cool thing about computers and networks? most “servers” do not have to be on the same computer as the data/movies that they “serve”. I set up my Plex server on a standalone computer sitting in a dark closet. Next to it is my NAS where my media is stored. The “server” simply knows how to call up the NAS to see the movies, pulls them over to itself for a short time, then sends that out to my iphone when I try to watch something.
This can be a bit difficult to set up, though, as you need a bit of a crash course in computer networking to get it working fine. Whats much easier to do is to have the server AND media in the same box. This is what you have, with the server installed on the MyCloud NAS of yours. This works great, and might even be setup ahead of time to look at your NAS’s media shares automatically.
LESSON OVER
The problem here seems to be that we have some confusion regarding whether the server is on your Windows computer or the NAS. I suspect that the NAS is your master server, but you made references to deleting items in the Windows registry. This would ONLY be necessary if you are actually using the server installed on your computer.
I hope this clears up some thing for you/others. FordGuy’s doing some good steps walking you through trying to figure out whats up.
PS:
FYI, when we ask you to enter an IP into something, almost universally it will be in a browser. File Explorer can access computers by their IP, but it’s usually just to access files. File Explorer can’t do anything other than “explore” for “files”. I can’t think of any reason we’d ask you to enter IPs into Explorer, so go on ahead and punch it into Chrome from now on unless we say otherwise.