question

IainHarris-4915 avatar image
2 Votes"
IainHarris-4915 asked bhargaviannadevara-msft answered

azurewebsites.net issue - Your connection to this site isn't secure ERR_SSL_VERSION_OR_CIPHER_MISMATCH

Some of our users can no longer access our API hosted on azurewebsites.net.

When I go to https://<our-app-service-name>.azurewebsites.net/swagger/index.html I see the Swagger-generated page, but when some other visit the same URL they receive a response that the site uses an unsupported protocol:-

Your connection to the site isn't secure
ERR_SSL_VERSION_OR_CIPHER_MISMATCH

Why is this?

Iain

azure-webapps-ssl-certificates
· 8
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

Suspect the ones that work are answered from cache - I got here, as we've started seeing the same issue start "at some point" in the last 24 hours :(

0 Votes 0 ·

@IainHarris-4915 @RowlandShaw-0780 Thanks for reaching out and reporting the issue. I've reached out to our internal teams to check on this and will let you know as I have more details. Meanwhile, could you please confirm which region your apps are deployed to? And the SKU they are on?

0 Votes 0 ·
RowlandShaw-0780 avatar image RowlandShaw-0780 bhargaviannadevara-msft ·

This might be an ISP issue, at least in my case, going by https://twitter.com/ealexhudson/status/1434921204289351683

1 Vote 1 ·
AdamBrown-6556 avatar image AdamBrown-6556 bhargaviannadevara-msft ·

Hi.

I'm having this issue in the UK - all https requests made to any *.azurewebsites.net domain from multiple platforms failing with ERR_SSL_VERSION_OR_CIPHER_MISMATCH

0 Votes 0 ·

Issue now fixed.

1 Vote 1 ·

Can confirm that all .azurewebsites.net https requests are failing across the board.

0 Votes 0 ·

Issue now fixed

1 Vote 1 ·

@IainHarris-4915 @RowlandShaw-0780 The issue seems to be resolved for some customers now. Could you please recheck if you are able to access your apps again as usual?

0 Votes 0 ·

1 Answer

bhargaviannadevara-msft avatar image
0 Votes"
bhargaviannadevara-msft answered

Summarizing the discussion as an answer below so it benefits others in the community seeing similar issues.


@IainHarris-4915 @RowlandShaw-0780 We had gotten similar reports from other customers today about this error. It appears that this was caused due to an ISP issue in the region, and is now resolved. More details here: https://twitter.com/ealexhudson/status/1434921204289351683

Please check if you are able to access your apps again as usual.


If an answer is helpful, please "Accept answer" and/or "Up-Vote" which might help other community members reading this thread.

5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.