Comment 35 for bug 1683577

More info on the system log:
At 12.xx secs, system boots into desktop with wifi automatically connected and works find.
At 118, 145,225 seconds, three attempts are made to re-connect to the same wifi ssid. First two are successful. The wifi adapter disappears from the network-manager after the third.
At 330 seconds ethernet cable is connected to submit the system log.

After the system log is sent, at 880 seconds after boot, a USB 802.11/b/g/n adapter was connected and detected by kernel but does not show up in network-manager:

869.724515] usb 1-4: new high-speed USB device number 4 using xhci_hcd
[ 869.882786] usb 1-4: New USB device found, idVendor=148f, idProduct=3070
[ 869.882793] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 869.882798] usb 1-4: Product: 802.11 n WLAN
[ 869.882802] usb 1-4: Manufacturer: Ralink
[ 869.882806] usb 1-4: SerialNumber: 1.0
[ 870.024988] usb 1-4: reset high-speed USB device number 4 using xhci_hcd
[ 870.176022] ieee80211 phy1: rt2x00_set_rt: Info - RT chipset 3070, rev 0201 detected
[ 870.188292] ieee80211 phy1: rt2x00_set_rf: Info - RF chipset 0005 detected
[ 870.189040] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'
[ 870.190525] usbcore: registered new interface driver rt2800usb
[ 870.203530] rt2800usb 1-4:1.0 wlxe84e0604557e: renamed from wlan0
[ 870.231315] IPv6: ADDRCONF(NETDEV_UP): wlxe84e0604557e: link is not ready
[ 870.231355] ieee80211 phy1: rt2x00lib_request_firmware: Info - Loading firmware file 'rt2870.bin'
[ 870.235687] ieee80211 phy1: rt2x00lib_request_firmware: Info - Firmware detected - version: 0.36
[ 870.623403] IPv6: ADDRCONF(NETDEV_UP): wlxe84e0604557e: link is not ready
[ 871.048160] IPv6: ADDRCONF(NETDEV_UP): wlxe84e0604557e: link is not ready