Hello, I’ve been using manjaro plasma for a couple of weeks but recently I had the internet problem. I’ve been trying to do different functions but it seems that nothing wants to respond. I am simply connected to my wifi network but without internet. I’m pretty new to linux and I can’t find a solution to this.
Hello @Lawn and welcome 
Please take a look here:
Especially the system information would be needed here.
And most especially
inxi -n
Without filter, so that we can see if you has for example an ip address starting with 169 which will indicate a dhcp problem, which is pretty much the only thing that can go wrong with a wifi after a successful authentication.
Also TIME.
I’ve seen a bunch of DNS-related issues … and while I have thoughts about the default implementation of that … another very common problem is simply the TIME (and/or date) is not set correctly.
(this can be more obvious in situations where, for example, ping works, but not domain lookup/browser)