General wireless connectivity debugging?

[Anthony Jenkins]

I'm running a fairly recent -CURRENT on my laptop with a run(4)-based 
USB wireless adapter.?? I can connect to several wireless access points, 
except for the ones at work.?? One's a Netgear Nighthawk X4.?? I see 
errors related to WPA negotiation:

wpa_cli:

 > interface wlan1
Connected to interface 'wlan1.
<3>CTRL-EVENT-SCAN-RESULTS
<3>WPS-AP-AVAILABLE
<3>CTRL-EVENT-NETWORK-NOT-FOUND
 > select_network 5
OK
<3>CTRL-EVENT-SSID-REENABLED id=5 ssid="EC-LAB-24"
<3>Trying to associate with a0:63:91:89:28:c4 (SSID='EC-LAB-24' 
freq=2422 MHz)
<3>Authentication with a0:63:91:89:28:c4 timed out.
<3>CTRL-EVENT-DISCONNECTED bssid=a0:63:91:89:28:c4 reason=3 
locally_generated=1
<3>CTRL-EVENT-SSID-TEMP-DISABLED id=5 ssid="EC-LAB-24" auth_failures=1 
duration=?? 10 reason=CONN_FAILED
<3>CTRL-EVENT-SCAN-RESULTS
<3>WPS-AP-AVAILABLE
 > quit

Interestingly, a 2nd run(4) interface on a Thunderbird dock connects 
just fine.?? The one that doesn't connect is whichever one is plugged 
into a USB port on the laptop.

Can someone suggest some basic wireless connectivity debugging tips??? 
I'd like to add them to the FreeBSD wireless wiki - or are there already 
some tips up there?

Thanks,
Anthony Jenkins