Wireless not connecting...

Oliver Grawert ogra at ubuntu.com
Wed May 29 18:32:18 UTC 2019


hi,
Am Mittwoch, den 29.05.2019, 13:26 -0400 schrieb Robert Heller:
> OK, before I totally trown in the towel on this NIC, I just tried
> connecting 
> while having a terminal window open.  Here is what iwconfig is
> telling me 
> while it is trying to connect:

and if you check with "ifconfig" at the same time, do you see an ip at
any point ?

> 
> 
> heller at laptop3: iwconfig wlo1
> wlo1      IEEE 802.11  ESSID:"wendelllibrary"  
>           Mode:Managed  Frequency:2.437 GHz  Access Point:
> DC:9F:DB:3E:F2:9E   
>           Bit Rate=7.2 Mb/s   Tx-Power=20 dBm   
>           Retry short limit:7   RTS thr=2347 B   Fragment thr:off
>           Power Management:off
>           Link Quality=70/70  Signal level=-35 dBm  
>           Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
>           Tx excessive retries:0  Invalid misc:0   Missed beacon:0
> 
> 
> So it looks like it is trying to connect, but is failing for some
> reason.  The 
> behavior *looks* like a weak signal issue, even though the signal is
> good.

what do the logs syslog/journalctl on the machine say while it tries to
connect ?

> 
> And here is what is being logged by the AP (I have the AP direct its
> log 
> messages to the server, where the DHCP server is running):
> 
> May 28 15:10:49 wirelessap wireless: ath0     Registered
> node:C8:FF:28:C5:D2:58
> May 28 15:11:33 wirelessap wireless: ath0     Received deauth from
> c8:ff:28:c5:d2:58. Reason: Deauthenticated because sending STA is
> leaving (or has left) the basic service area (3).
...
> 
> The AP appliance is seeing the connection attempts, but for some
> reason is not 
> passing things on to the server for a dhcp address assignment.  The
> "Reason: 
> Deauthenticated because sending STA is leaving (or has left) the
> basic service 
> area (3). suggests somebody is getting a weak signal...

are you sure "C8:FF:28:C5:D2:58" is the device you are wanting to
connect (and not some random dude walking around in the library with a
WLAN enabled mobile phone) ?

also, does your AP perhaps have a MAC address filter that blocks DHCP
requests for non enabled MAC adresses (so you would have to add the
device to this list) ?

ciao
	oli
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