After a cumulative update Edge cannot open many sites

A

Anixx

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• Aug 15, 2025

• #1

It cannot open ChatGPT.com, Copilot.microsoft.com and LMarena.ai. These sites are opened well in Firefox. Edge can open www.elevenforum.com (this site) though.

 

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K

KevTech

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• Aug 15, 2025

• #2

Anixx said:

It cannot open ChatGPT.com, Copilot.microsoft.com and LMarena.ai.

Click to expand...

Had no problem opening any of these with Edge on Windows build 4946.

 

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• OS

  Windows 11 Pro

A

Anixx

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663

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• Aug 15, 2025

• #3

It seems to be related to Edge defaulting to IPv6.

 

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System One

• OS

  Windows 11