wilc1000 fails to connect to corporate mesh network: wilc1000_sdio mmc1:0001:1 wlan0: Unspecified failure

[ianstorrs]

The wilc1000 connects to retail access points without an issue, but when connecting to a corporate mesh network, it consistently either fails to associate or associates but fails to get a DHCP address (or fails arp if manual address). tcpdump on the interface shows DHCP requests or arps being sent. but logging in the corporate network shows these are not being received.

Often we see this error print:
wilc1000_sdio mmc1:0001:1 wlan0: Unspecified failure

Any suggestions on how to debug this issue? How can we collect supplicant or driver logs?