Trouble with wifi usb dongle, should I get the same model?

I have searched all over trying to find my problem, but can not find it. The internet works, google works, but some other webpages will not work. It’s like only part of the internet is visible for me. It’s a pau07. I assume my pau07 is damaged. Is it safe to get another pau07?

I found out the problem is with wicked network services. Maybe I’m not supposed to use networkManager with it? I can’t connect without networkManager. Wicked runs into trouble, that I have to disable it, and turn on the Othe part of NetworkManger services to use the internet.