Created attachment 286103 [details] journal logs of a deauthenticaction With an Intel Wireless-AC controller, I frequently experience deauthentication events with the effect that NetworkManager asks for the PSK despite it being valid on the AP. This may be associated with hopping between two bands on the same physical AP using the same PSK. Whether band steering is used with the same ESSID, or different ESSIDs are used for the two bands, does not seem to make much difference. lspci output: 00:14.3 Network controller: Intel Corporation Cannon Point-LP CNVi [Wireless-AC] (rev 30) Subsystem: Intel Corporation Device 0034 Kernel driver in use: iwlwifi Kernel modules: iwlwifi Driver initialization on boot: [ 11.291730] kernel: iwlwifi 0000:00:14.3: loaded firmware version 46.6bf1df06.0 op_mode iwlmvm [ 11.531768] kernel: iwlwifi 0000:00:14.3: Detected Intel(R) Dual Band Wireless AC 9560, REV=0x318 == Access point information == Product Vendor: Technicolor Product Name: Telia WiFi-router Plus v3 Software Version: 17.2 Firmware Version: 17.2.0339-1441028-20180416152341 Hardware Version: VBNT-H
Station information when connected after some occurrences: # iw dev wlp0s20f3 station dump Station [REDACTED] (on wlp0s20f3) inactive time: 429 ms rx bytes: 33123419 rx packets: 63482 tx bytes: 7826384 tx packets: 43111 tx retries: 6044 tx failed: 62 beacon loss: 33 beacon rx: 38 rx drop misc: 1332 signal: -21 [-32, -21] dBm signal avg: 25 dBm beacon signal avg: -25 dBm tx bitrate: 866.7 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 2 rx bitrate: 585.1 MBit/s VHT-MCS 6 80MHz short GI VHT-NSS 2 rx duration: 0 us authorized: yes authenticated: yes associated: yes preamble: long WMM/WME: yes MFP: no TDLS peer: no DTIM period: 2 beacon interval:100 short preamble: yes short slot time:yes connected time: 9397 seconds