Arch Linux

zener

Member

Registered: 2016-12-10

Posts: 6

wpa_parse_wpa_ie_rsn: invalid group cipher

I just did my first arch installation and I'm having a problem making wpa_supplicant connect to a wireless network.

There's something strange with the network. I can't connect with my laptop (Gentoo). I can connect with my Raspberry Pi (using the same wpa_supplicant.conf entry as my laptop). I can connect with my phone (Android 5.0.1).

And I can't connect with my NUC running Arch. I get the following error when running wpa_supplicant with the debug option:

wpa_parse_wpa_ie_rsn: invalid group cipher 0x0 (000fac05)
wlp2s0:    skip RSN IE - parse failed
wlp2s0:    reject due to mismatch with WPA/WPA2

Does anybody know where the group cipher is obtained? Is it from the wireless router, or is it something in wpa_supplicant.conf setting somewhere?

LBLaiSiNanHai

Member

Registered: 2025-12-06

Posts: 5

Re: wpa_parse_wpa_ie_rsn: invalid group cipher

Your cipher algo is incorrect, try reset and auto detect, if still not works, may your network adatper unsupport the group cipher (may new in WPA3, for example, GCMP-128), try change the settings of WiFi, use CCMP instead.