Hi M K PRAVEEN,
Thank you for reaching out to Microsoft Q & A forum.
It seems that vscode.dev might be blocked on your network. Please try switching to a different network, or opening it in an incognito window. Browser extensions, security settings, or firewalls could also be causing the issue, so disabling them temporarily may help. If you are using a work or school network, access may be restricted by IT policies. I have tested it on my end, and everything is working fine.
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