Q: 2014 mac mini loosing internet connection

thanks, I'll give these a try. I think 8.8.8.8 is google's dns server?

but this also happens if I wire the router directly to the machine. Still worth a try, thans.

I also decided to run a visrus scan just in case, that'll take a while to finish, after that I'll check out these steps.

Just can't understand why the problem started to happen a bit here and there, then more, and now I only get a min or two before no browser or other program can access the net for a long while.

first time I ran it and I'll take it off again, didn't find anything. used the one from avast.    

on to these settings things here...

well, I did these things (correctly I hope), the location setup did not stick though, it just went back to automatic and does not show my Home location for some reason. I did enter the wifi name and password by hand, not pick from the list, also removed other wifis that were brought over with migration assistant months ago. it seemed to help for a while, but now I get dropp outs and spinning wheels again :-(

What else can I try? I restarted everything, router, computer, several times and the wifi works on all other machines I have here. And it worked great for months, I got very fast speeds on speed tests, just recently things started to act up. I did not install anything new aside of adblocker, but only in firefox and all browsers and thunderbird are affected, as well as terminal ping etc.

Could the network card in the computer be defective? I have an appointment with the genius bar on Friday, not sure it'll get me anything though. I'll probably bring the mini with me, but without it being at my home location it might work just fine for those 15 min they give me.

Any other ideas? This is my work machine, I really need it online and it worked fantastic for a good while :-(

yes, it's not there. I'm on system 10.9.3, maybe it works a bit different there and I did something wrong, I'll google. I really don't know much about networking and what this Locations thing means.

At first it seemed the things I did helped, but that only lasted 10 min or so, then I was back to no connection on that computer. Since wifi works on all other devices and used to work great on the mac mini, I'm starting to wonder if it's a hardware thing? I don't quite see how some settings could change themselves and suddenly cause this drop out. I'll uninstall the virus software too, but I only installed it yesterday during one of those moments wen I had a connection. Other than automatic system (and software) updates I have not made any changes on the mini since I got it and moved everything over from my macbook pro with migration assistant.

Any other ideas? I'll take it to the Genius bar on Friday, but somewhat doubt they can help in 15 min. But I need to fix this somehow, otherwise the whole computer is a paper weight, I need to be online for my work :-(

ah, I think I found one mistake I made, I did not add the DNS servers to my Home location, I did that now and it kept the location. Does not help though, I got internet for less than a minute, then just "connecting" and spinning balls in Firefox and Thunderbird can't get my mails either. I'll try hardwired once more, I have to move the router for that and it can't stay in my office, but at least I can find out if it's now only wifi related, maybe the card is overheating quickly or something? Fan in the mini hardly ever comes on though.

looking at the console now, not much I understand but I'll see what I can find. I'll have to wait for connection to copy/paste things here. some things about excessive wakeups in firefox, something about an unreconized leaf certificate and lots of other things. Maybe I'll do a restart and then look again, hopefully I'll also have a connection then for a moment.

ETA: anything in particular I should look for?

even just after startup there are over 4000 lines, yikes! I'll have to give this an other look tomorrow, I'll look for repeats and errors.