Today I've encountered a really strange wifi bug. Basically, everything is running fine until I get really non-responsive internet. The wifi icon in gnome shows 'connected', but Chrome does not load pages and just times out.
Next time this happened, I ran a ping to google DNS and got really long response times, like 30000 ms range. I decided to leave ping running while I work. Suddenly, this happened:
journalctl - nothing. My OS is Arch Linux,
Linux 4.4.5-1-ARCH #1 SMP PREEMPT Thu Mar 10 07:38:19 CET 2016 x86_64 GNU/Linux
Laptop is Dell Latitude e7450 with an Intel wifi card.
lspci Network controller: Intel Corporation Wireless 7265 (rev 59) lsmod | grep 'wifi' iwlwifi 163840 1 iwlmvm cfg80211 483328 3 iwlwifi,mac80211,iwlmvm
Any idea what may cause this and how to debug it?