It seems to be solved with bios B0F, so this is a bios/hardware related problem.
iwlwifi:
wmaster0 IEEE 802.11a Frequency:5.68 GHz RTS thr:off Fragment thr=2346 B
wlan0 IEEE 802.11a ESSID:"" Mode:Managed Frequency:5.68 GHz Access Point: Not-Associated RTS thr:off Fragment thr=2346 B Encryption key:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0
It seems to be solved with bios B0F, so
this is a bios/hardware related problem.
iwlwifi:
wmaster0 IEEE 802.11a Frequency:5.68 GHz
RTS thr:off Fragment thr=2346 B
wlan0 IEEE 802.11a ESSID:""
Mode: Managed Frequency:5.68 GHz Access Point: Not-Associated
Encryption key:off
RTS thr:off Fragment thr=2346 B
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0