---- Tom Psyborg <pozega.tomislav@xxxxxxxxx> wrote: > Hi > > Your log only show attemps on ch 2447, Can you try connecting to 5GHz > AP? Connect to Hidden Wireless Network option at the bottom of the > nm-applet? Running airodump in monitor mode to see if it captures > anything? Maybe your laptop's antennas were designed for 2.4G card > only but this just dumb guessing... > It won't connect to any 5GHz AP. I don't run network manager or Gnome, in fact X11 is not installed on this machine at all. I don't think there is such a thing as 2.4GHz vs 5GHz antennas. > On 17/06/2018, mgreger@xxxxxxxxxxxx <mgreger@xxxxxxxxxxxx> wrote: > > > > ---- "Michał Kazior" <kazikcz@xxxxxxxxx> wrote: > >> On 15 June 2018 at 19:23, <mgreger@xxxxxxxxxxxx> wrote: > >> > ---- mgreger@xxxxxxxxxxxx wrote: > >> >> ---- "Michał Kazior" <kazikcz@xxxxxxxxx> wrote: > >> >> > Your noise floor readout in survey dump is terribly bad for 5GHz. It > >> >> > ain't stellar for 2.4GHz either but within reason nonetheless. > >> >> > > >> >> > Did you try using the card in a different device? I wonder if the > >> >> > device you're trying to use it in has some sort of internal noise on > >> >> > those frequencies and/or ath9k's ANI isn't able to deal with it. > >> >> > > >> >> > > >> >> > Michał > >> >> > > >> >> > On 15 June 2018 at 15:31, <mgreger@xxxxxxxxxxxx> wrote: > >> >> > >> >> I did. > >> >> I took it out of the Penguin-Z notebook and put it in a Dell XPS15 9560 > >> >> running Windows 10. Only 2.4Ghz networks were visible from there as > >> >> well. Not exactly apples-to-apples, but consistent results. > >> > >> This reduces likeliness this is tied to a os/driver issue. Maybe > >> calibration data on the device eeprom is broken? Or maybe it's a > >> hardware defect? > > > > > > > > > > I have three of these cards all with the same problem, so if it's a hardware > > defect then it's pretty much game over and these cards are all useless. > > Forgive my ignorance, but is there any way to check/fix calibration data? > > > > > > > > > >> > >> > >> > Could it be antenna related (in multiple devices)? > >> > >> Antennas can be designed to work better on certain frequency ranges. I > >> wouldn't expect such a dramatic effect though. > >> > >> > >> > On wikidevi.com I see some M.2 cards listed with an antenna connector of > >> > U.FL and others with MHF4. I can't find anything describing the > >> > difference, if any. The connectors seemed to fit OK. Also, what's the > >> > deal with 'main' and 'aux' antenna connectors? I've seen people suggest > >> > swapping them has helped in some cases with poor signal, while others > >> > insist that it makes no difference. I have not tried swapping the > >> > connectors. > >> > >> I think it's not a connector problem because 2.4GHz scan results > >> report reasonable signal strength for found APs (-60dBm). My > >> experience is that if you use a wrong (but seemingly fitting) > >> connector you'd get near 0 results or below -90dBm across the board. > >> > >> > >> Michał > > > >
