Ignition edge designer error launching application SocketTimeoutException: connect timed out after Customizing Client Login Screen

After viewing the course video on "Customizing Client Login Screen", I decided to practice on my project and just added a Welcome message, a welcome image, under Username Text: Enter your Username, under password text: Enter your password as shown on the video.
Saved the changes and after that when I try to launch the project using the designer, it shows the error message: "error launching application SocketTimeoutException: connect timed out".
I can access the gateway but is extremely slow and sometimes doesn't load the pages.
Tried to make a backup and times out, as well as if I try to restore a backup.
This is using Ignition Edge.
We tried on another computer and same thing.