wireless worked through many updates (and many kernel changes starting with 4.4 to 5.4) until last . . .
hope the following information helps with identify issue:
wlan0: Broadcom BCM4315 802.11 Hybrid Wireless Controller 18.104.22.1681 (r587334)
0b:00.0 Network controller: Broadcom Inc, and subsidiaries BCM 4312 802.11b/g LP-PHY (rev 01)
from journalctl: wl 0000:0b:00.0 wkp11s0: renamed from wlan0
and eventually followed by litany of error msgs starting with:
Solved using the this post