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SeeLook

Member

Registered: 2012-07-01

Posts: 19

How to debug establishing WIFI connection

Hi there.

I have issues with TP-LINK Archer T9UH (USB wifi ac dongle).
I'm using iwp daemon for wifi/authentication connection (works quite well and better than wpa_supplicant)
and then a few commands to set interface up:

IFACE=wlp12345
ip link set $IFACE up
ip addr add 192.168.1.100/24 brd + dev $IFACE
ip route add default via 192.168.1.1 dev $IFACE

And invoking this takes up to 10 secs.
It is bearable first time, after reboot.
But after resume (from suspend to RAM) to wake up connection it takes from a few secs till about minute or maybe more - but I'm restarting iwp.service and down/up interface again.
I'm using this driver:
https://github.com/aircrack-ng/rtl8812au
(it is in AUR as well) and this is the best I could find among others.

With NetworkManager it behaves the same way or even longer.

So tell me please how to debug what is happening when connection is establishing/re-establishing to find a reason what freezes it or to ask more precise question. Journalctrl says nothing.

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 9,003

Website

Re: How to debug establishing WIFI connection

after resume (from suspend to RAM) to wake up connection it takes from a few secs till about minute or maybe more - but I'm restarting iwp.service and down/up interface again.

Have you tried just leaving it alone after resuming?

I use a similar method with my Intel wireless card (but with wpa_supplicant rather than iwd) and my system keeps the addresses and wpa_supplicant doesn't need to be restarted after suspending.

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Jin, Jîyan, Azadî