Hi loopo,
The main issue is that the "RobLox" won`t be opened, right? Have you got any error code or error messages when you try to open the website?
Please try the following steps:
1.Turn off the firewall and the antivirus software temporarily.
2.Run "iexplore.exe -private" to open Internet Explorer in Private mode.
3.Clear the saved credential if you got one in the "Credential Manager".
You may try to ask for help from the RobLox support. They may have more resources to help you.
Best regards
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