Long initial load time and can't connect to gallery

Jackdanie1  Try setting your phone as a mobile hotspot, using data rather than your home wifi, and connecting to that.  A one-time test shouldn't use too much data, and it'll tell you whether the problem is your network (router, ISP) or something else.  If it's the network, powercycling the router may help.

Your dxdiag shows a pile of Sims 4 errors but mostly generic ones, and nothing about a network issue.

I power cycled the router, didn't work. I tried to turn on hotspot and my iPhone said I need to change my plan....even tried to add 1 month to plan online and it said I need to call or go to an AT&T store. Too much effort to test.

Maybe it will go back to working again like last time before the Reaper Event ends. Thanks for trying!

Jackdanie1  Before giving up, it's worth trying a clean boot:

https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-2f8a-a97a1807f3dd

The one service to leave enabled is the EABackgroundService, which the EA App needs in order to run.  Disable the rest as described.

When you reboot your computer, go through the Task Manager's background processes list shutting down any service that doesn't absolutely need to be running, for example anything from MSI Afterburner to RGB software might still be enabled.  If you accidentally kill a critical process and it doesn't restart on its own, just reboot your computer again.

Don't open anything other than Sims 4 and the EA App while testing, not even a browser window.

If this works, you can selectively reenable services until you find the one that's causing the problem.