SSL received a record with an incorrect Message Authentication Code

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I just installed Rhel 7 at home

I keep getting this error
curl: (56) SSL received a record with an incorrect Message Authentication Code.

Is there a fix for this



Hi Chinedu,

This is most probably not related to RHEL, but rather has something to do with your internet connection or your firefox profile.
As a workaround you can remove your profile and create a new profile : rm -r /home/<your-user-name>/.mozilla/* ... :)


This is a dual boot workstation. When I boot into windows 10, everything works fine. I only have this problem when I boot into RHEL on same workstation..

The internet connection is fine, I think...

Someone please help with this...

Could you check if the network is actually working, for example by running


which should give you a raw html page. If it is just firefox then you might do better searching on the mozilla site where I found which may or may not be helpful.


Apart from standard checks with your Firefox setup (and the proxy if you use it), could you please disable IPv6 in Firefox:

In the address bar, type about:config and press Enter.

In the Search field, enter network.dns.disableIPv6 or something similar.

In the list of preferences, double-click network.dns.disableIPv6 to set its value to true.


Dusan Baljevic (amateur radio VK2COT)