install KB5131085 → Edge Internet browsing fails with ERR_INVALID_RESPONSE

Question

install KB5131085 → Edge Internet browsing fails with ERR_INVALID_RESPONSE

Tariq Malik 0

Windows Server 2019 works normally → install KB5131085 → Edge Internet browsing fails with ERR_INVALID_RESPONSE → uninstall KB5131085 → Internet browsing immediately works again.

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Answer 1

Vikki-T 14,290 Microsoft External Staff Moderator

Hello Tariq Malik,

Thank you for reporting this. Since Edge stops loading webpages after KB5131085 is installed and works again after the update is removed, please make sure Microsoft Edge and any third-party security software are fully updated. You can also try repairing Edge by going to Settings > Apps > Installed apps > Microsoft Edge > Modify > Repair.

For additional guidance, see: What to do if Microsoft Edge isn’t working Thank you so much for your understanding.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Tariq Malik 0 Reputation points

2026-11-13T12:53:28.09+00:00

Its not an Edge issues, its KB5131085 which is causing the problem. i have 3 different browsers installed on the server and all come up with the same error. i'll wait for a fix to be released, just saw a few others are also having issues with it.
Vikki-T 14,290 Reputation points Microsoft External Staff Moderator

2026-11-13T14:28:22.8+00:00

Hello Tariq Malik,

Thank you for clarifying that the issue affects all three browsers on the server. I understand how disruptive this must be, especially when removing the update is the only workaround you have found.

My previous response focused on Edge because the question was posted under the Microsoft Edge tag. I appreciate you confirming that the behavior is not limited to Edge.

You may also report this behavior through the Feedback Hub, including the KB number, error message, and the results from testing multiple browsers. This will allow the relevant Microsoft team to review the report. Thank you for sharing your findings with the community.