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Getting erro ssl_error_weak_server_cert_key when I try to access a device on my system https://localhost:7402/

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I've tried to use a different browser but it when I use internet explorer, it starts firefox and I don't know how to make IE 7 my default browser.

I've tried to use a different browser but it when I use internet explorer, it starts firefox and I don't know how to make IE 7 my default browser.

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You can try to set these prefs to false on the about:config page if there are still set to true.

  • security.ssl3.dhe_rsa_aes_128_sha
  • security.ssl3.dhe_rsa_aes_256_sha

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.


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This did not solve my problem. I've tried using Internet Explorer, but get the same error. I've tried to contact the manufacturer, but their support is only online and just isn't allowing me to post this error.

Is their an alternate browser you can suggest?

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What Firefox version was the last that worked?

You should be able to start IE via its own desktop shortcut or entry in the Start menu Allprograms (not the default browser, but its own entry).