Error Code 403: Access to www.roblox.com has been denied. You are not authorized to view this page – Roblox Support

Why does this happen?

Error code 403 occurs on PCs when the Roblox client application launched from the website fails to initialize properly.

Try uninstalling & reinstall the Roblox application (This helps clear any corrupted files and data that may affect the functionality of the Roblox application, installing a new copy of the application updates it to the latest version)
1. Select Start and open Settings
2. Look for the Apps icon and select it, followed by Apps & features
3. Select the Roblox application and then select Uninstall, then follow the directions on the screen
Clear App-Data (This gets the access cache build-up cleared from your system, i.e., clearing the app's data restores the app to its default settings and clears all stored app data)
1. Uninstall Roblox and open command prompt (by pressing Win+R > Type ""CMD"" > Press Enter
2. Type in the following commands: cd AppData\Local (then press enter) >> rmdir /s Roblox (then press enter) >> Enter ""y"" when asked to answer (then press enter)
3. Restart your computer & Reinstall Roblox
Network-related (This helps with connection related errors and issues of high ping/lag)
1. Try connecting your system to a different source of internet connection and see if the issue persists
2. If it persists, it is recommended to connect with your internet connection provider for further troubleshooting

Try uninstalling & reinstall the Roblox application (This helps clear any corrupted files and data that may affect the functionality of the Roblox application, installing a new copy of the application updates it to the latest version)
1. In the search text field on the taskbar, enter the Control Panel and select it from the results
2. Select Programs and open it, followed by Programs and Features
3. Press and hold (or right-click) on the Roblox application to remove and select Uninstall or Uninstall/Change, then follow the directions on the screen
Clear App-Data (This gets the access cache build-up cleared from your system, i.e., clearing the app's data restores the app to its default settings and clears all stored app data)
1. Uninstall Roblox and open command prompt (by pressing Win+R > Type ""CMD"" > Press Enter
2. Type in the following commands: cd AppData\Local (then press enter) >> rmdir /s Roblox (then press enter) >> Enter ""y"" when asked to answer (then press enter)
3. Restart your computer & Reinstall Roblox
Network-related [Helps with connection related errors and issues of high ping/lag]
1. Try connecting your system to a different source of internet connection and see if the issue persists
2. If it persists, it is recommended to connect with your internet connection provider for further troubleshooting