I bought a brand new MacBook Pro 13" 2015 (8GB RAM, i5, 128 SSD) 7 months ago. The thing is, my Mac works and I love it, but a couple of months ago, without doing anything, loading web pages even with Chrome as with Safari is extremely slow. My girlfriend has a Windows laptop and it works perfectly and when I connect to a different Wi-Fi router it works great. So my guess is there is a problem with my Mac related to my router.
I have tried several solutions already - I changed all of the DNS servers you can imagine in macOS and on my router as well, restarted my network settings, excellent namebench to see which is the right DNS for me, clearing caches... But nothing helped.
I must say that I don't have this problem 100% of the time, but more like 70% of the time. Sometimes it's like suddenly the problem goes away. Speed test gives me 52.42 mbps download and 3.09 mbps upload and I always connect via Wi-Fi and not ethernet.
This is the result of the following command:
ping -c 100 -s 1992 -q 192.168.1.1 --- 192.168.1.1 ping statistics --- 100 packets transmitted, 20 packets received, 80.0% packet loss round-trip min/avg/max/stddev = 2.424/10.420/56.773/11.580 ms
80% packet loss sound like a lot. What should I exactly do with iStumbler?