Opera cannot open some web sites – ERR_TIMED_OUT

Small note for users of the Opera browser. A reader has brought to my attention that the browser goes on strike with some web pages and throws an ERR_TIMED_OUT.


Blog reader Tobi M. contacted me on Facebook the other day and posted a reference to the Network Specialists and Administrators group. In the group he asks: Does anyone know the problem that Opera can not call some page? The browser then displays an ERR_TIMED_OUT. 

The root cause: During tests he found out that they are websites that use free certificates from Let's Encrypt. The pages in question cannot be opened. The background is that Opera uses the system certificates. The solution to the problem is to delete the old root certificate, because simply installing the new roots does nothing.

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