This issue usually affects web developers, and it can interfere with the development process. It’s also called the NS_ERROR_NET_INADEQUATE_SECURITY error and it usually occurs when accessing websites hosted on IIS 10.0. What happens is that in its default configuration, the IIS 10.0 has the HTTP/2 protocol enabled. However, the protocol was not supported in the default configurations of Chrome and Firefox browsers. However, fixing this issue is relatively simple, and today we’ll show you how to fix it.

What is ERR_ SPDY_ INADEQUATE_ transport_ Security?

This is an error that could be a result of using an outdated version of Chrome, old and corrupted browser cookies, or HTTP/2 is enabled. Furthermore, if your Windows Server is using some weaker ciphers and protocols, this error message might be triggered as a result.

Quick tip:

Before we start fixing this issue, it’s important to determine if the problem is only appearing in Chrome. To do that, you can use any other browser, but we would recommend using Opera. Opera offers some unique features, and it allows you to organize tabs into workspaces. If needed, you can also use the built-in search to find any open tab with ease.

How can I fix err_spdy_inadequate_transport_security error?

1. Modify the registry

Keep in mind that these changes might cause your website to load slower. It’s also worth mentioning that this err_spdy_inadequate_transport_security Google Chrome fix applies only to Windows Server.

2. Change Chrome launch parameters

–use-spdy=off –disable-http2 After doing that, the HTTP2 or SPDY protocols will be disabled in Chrome.

3. Update Chrome to the latest version

Updating your browser may clear this error so make sure you try this solution to get rid of this problem. There you go! Now, when you encounter err_spdy_inadequate_transport_security in Chrome, you will know how to handle it. Users have also reported the err http2 inadequate transport security variant, but you are covered either way. Err_spdy_inadequate_transport_security Chrome error can cause problems on your PC, but hopefully, you should be able to fix it using our solutions. Following the saying: In case of inadequate transport security, call Windows Report, let us know in the comments section below if your problem was solved.

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