Hello, Joshua Bumatay
Welcome to the Microsoft Community
Thanks for your feedback. I read the information you provided. You mentioned that you received an error message when playing Roblox.
I understand that this problem is causing you trouble. If you can use the version downloaded from the Microsoft Store normally, it means that your network is fine, so the problem may be that there is a problem with the Roblox server.
I hope to solve your problem, but this kind of network problem is beyond the scope of our forum reply. Please don't worry, you can submit your problem to Roblox's technical support staff, who will provide you with more professional advice and provide you with more useful information. You can contact them by clicking the link below.
https://en.help.roblox.com/hc/en-us/articles/208448546-Contact-Us
Disclaimer: Microsoft does not provide any implied or other warranties and/or guarantees, and is not responsible for the information you obtain from third-party linked websites or any technology-related support.
We hope that your problem can be properly resolved, thank you for your understanding.
Best regards
Brian - Microsoft Community Support Specialist