Forum Discussion
TLS 1.0 and 1.1 Support on Azure Web App
I know Azure is winding up support for TLS 1.0 and 1.1 by August 2025.
Does anyone can help me to access our existing IoT devices to connect to Azure Web App using this TLS 1.0 and 1.1?
Our device were connecting to azure server fine until Mid March 2025. At end of March 2025 we lost access to this IoT devices which uses TLS 1.0, 1.1.
Any thoughts or any one have any idea why it stopped before the deadline of August 2025?
And what can be done to get back this devices online?
#IoTHub #WebApp #Azure #TLS #TLS1.0 #TLS1.1 #SNI
3 Replies
Check the URL on the similar case, for your case, would suggest:
1. Enable Legacy TLS Temporarily
- Check if you can enable TLS 1.0 or 1.1 for your Web App:
- Go to Azure Portal > App Service > TLS/SSL Settings.
- Set the Minimum TLS Version to 1.0 (if still supported in your region).
2. Use a Proxy or Gateway
- Set up a TLS 1.2-compatible proxy or gateway between your IoT devices and Azure Web App.
- The proxy can handle TLS 1.2 connections with Azure while communicating with your devices using TLS 1.0 or 1.1.
We already have min TLS 1.0 configured and still it rejecting our incoming requests.
How to set up TLS 1.2 compatible proxy while our device is pointing to azure generated url and try to connect over TLS?
powershell cmd [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
this will point to 1.2
- Check if you can enable TLS 1.0 or 1.1 for your Web App:
