So you just downloaded Wallpaper Engine on your Android but when you go to connect your phone to your computer you are met with an infinite loading circle. I had this problem myself and Have seen many others with the same issue. This guide will show the most likely problem and how to fix it. (Please note that this is my first time writing a guide so hopefully its easy enough to follow along.)
 
 

The most likely problem

First make sure both devices are on the same network and neither devices are using a VPN. Also read the official troubleshooting section here: https://help.wallpaperengine.io/en/mobile/pairing.html#mobile-pairing-problem-solving – [wallpaperengine.io] 
 
If your phone still isn’t connecting with your PC the most likely problem for most users right now is Windows Firewall blocking the connection. You need to create a rule in Windows Firewall for ui32.exe, if you know how to do this, great, but if you don’t keep reading.
 
 
 

Finding your exe directory

First you will need the directory of ui32.exe. Right click Wallpaper engine in steam, hover over manage then click Browse local files.
 
 

 
 
A File Explorer window will open, from here open the folder named bin.
 
 

 
 
Now right click the bar at the top and select Copy address as text
 
 

 
 
The address will now be saved to your clipboard, you will need this in the next step.
 
 
 

Making the Firewall rule

The next thing we need to do is to open Windows Firewall advanced settings. To do this first open your system settings and search for firewall in the search bar. Then select Windows Defender Firewall from the dropdown list.
 
 

 
 
A new window should open and now you can select Advanced settings from the left of the window.
 
 

 
 
In the advanced settings window select Outbound Rules on the left then click New Rule… on the right
 
 

 
 
The rule wizard will open, on the first screen make sure the Program option is selected then click Next
 
 

 
 
Now select This program path and then click browse. In the File Explorer window that opens click the bar at the top once and then paste the address we copied earlier and press enter.
 
 

 
 
Now select ui32.exe and then click Open. Now you can click Next
 
 

 
 
!!!THIS IS THE MOST IMPORTANT PART!!!
 
Now make sure Allow the connection is selected and then click Next. On the next page make sure all the boxes are checked then click Next.
 
 

 
 

 
 
You can name the rule whatever you like, then click Finish
 
 

 
 
You should now be able to connect your phone, if the problem still persist make sure both devices are on the same network and that neither are using a VPN, you can also Repeat these steps for Inbound Rules
 
 

 
 
I hope you enjoy the Guide we share about Wallpaper Engine – How to fix Wallpaper Engine Mobile’s Infinite Circle; if you think we forget to add or we should add more information, please let us know via commenting below! See you soon!