Device removed and reinserted

[alarm@alarmpi ~]$ journalctl -f
-- Logs begin at Thu 1970-01-01 00:00:07 UTC. --
Mar 03 21:59:07 alarmpi dhcpcd[744]: wlan0: IAID ef:70:07:b8
Mar 03 21:59:07 alarmpi dhcpcd[744]: wlan0: rebinding lease of 192.168.29.159
Mar 03 21:59:07 alarmpi dhcpcd[744]: wlan0: probing address 192.168.29.159/24
Mar 03 21:59:08 alarmpi dhcpcd[744]: wlan0: soliciting an IPv6 router
Mar 03 21:59:13 alarmpi dhcpcd[744]: wlan0: leased 192.168.29.159 for 86400 seconds
Mar 03 21:59:13 alarmpi dhcpcd[744]: wlan0: adding route to 192.168.29.0/24
Mar 03 21:59:13 alarmpi dhcpcd[744]: wlan0: adding default route via 192.168.29.1
Mar 03 21:59:13 alarmpi dhcpcd[744]: forked to background, child pid 764
Mar 03 21:59:13 alarmpi systemd[1]: Started dhcpcd on wlan0.
Mar 03 21:59:20 alarmpi dhcpcd[764]: wlan0: no IPv6 Routers available
Mar 03 22:00:01 alarmpi kernel: usb 1-1.5: USB disconnect, device number 8
Mar 03 22:00:01 alarmpi kernel: rtw_cmd_thread: DriverStopped(0) SurpriseRemoved(1) break at line 482
Mar 03 22:00:01 alarmpi wpa_supplicant[191]: wlan0: CTRL-EVENT-DISCONNECTED bssid=08:62:66:c1:aa:a8 reason=3 locally_generated=1
Mar 03 22:00:01 alarmpi dhcpcd[764]: wlan0: carrier lost
Mar 03 22:00:01 alarmpi systemd-networkd[193]: wlan0: Lost carrier
Mar 03 22:00:01 alarmpi systemd-timesyncd[185]: No network connectivity, watching for changes.
Mar 03 22:00:01 alarmpi systemd-timesyncd[185]: No network connectivity, watching for changes.
Mar 03 22:00:01 alarmpi systemd-networkd[193]: wlan0: Could not find udev device: No such device
Mar 03 22:00:01 alarmpi systemd-networkd[193]: wlan0: Failed
Mar 03 22:00:01 alarmpi systemd-networkd[193]: Could not add new link: No such device
Mar 03 22:00:01 alarmpi systemd-timesyncd[185]: No network connectivity, watching for changes.
Mar 03 22:00:01 alarmpi systemd[1]: Stopping dhcpcd on wlan0...
Mar 03 22:00:01 alarmpi dhcpcd[781]: sending signal TERM to pid 764
Mar 03 22:00:01 alarmpi dhcpcd[781]: waiting for pid 764 to exit
Mar 03 22:00:01 alarmpi dhcpcd[764]: wlan0: deleting route to 192.168.29.0/24
Mar 03 22:00:01 alarmpi dhcpcd[764]: wlan0: deleting default route via 192.168.29.1
Mar 03 22:00:01 alarmpi dhcpcd[764]: wlan0: removing interface
Mar 03 22:00:01 alarmpi dhcpcd[764]: dhcpcd exited
Mar 03 22:00:01 alarmpi systemd[1]: dhcpcd@wlan0.service: Main process exited, code=exited, status=1/FAILURE
Mar 03 22:00:01 alarmpi dhcpcd[781]: sending signal TERM to pid 764
Mar 03 22:00:01 alarmpi dhcpcd[781]: waiting for pid 764 to exit
Mar 03 22:00:01 alarmpi systemd[1]: Stopped dhcpcd on wlan0.
Mar 03 22:00:01 alarmpi systemd[1]: dhcpcd@wlan0.service: Unit entered failed state.
Mar 03 22:00:01 alarmpi systemd[1]: dhcpcd@wlan0.service: Failed with result 'exit-code'.
Mar 03 22:00:06 alarmpi kernel: usb 1-1.5: new high-speed USB device number 9 using dwc_otg
Mar 03 22:00:06 alarmpi kernel: usb 1-1.5: New USB device found, idVendor=0bda, idProduct=8176
Mar 03 22:00:06 alarmpi kernel: usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Mar 03 22:00:06 alarmpi kernel: usb 1-1.5: Product: 802.11n WLAN Adapter
Mar 03 22:00:06 alarmpi kernel: usb 1-1.5: Manufacturer: Realtek
Mar 03 22:00:06 alarmpi kernel: usb 1-1.5: SerialNumber: 00e04c000001
Mar 03 22:00:07 alarmpi systemd-timesyncd[185]: No network connectivity, watching for changes.
Mar 03 22:00:07 alarmpi wpa_supplicant[191]: ioctl[SIOCSIWAP]: Operation not permitted
Mar 03 22:00:07 alarmpi kernel: IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Mar 03 22:00:07 alarmpi systemd-timesyncd[185]: No network connectivity, watching for changes.
Mar 03 22:00:08 alarmpi wpa_supplicant[191]: wlan0: Trying to associate with 08:62:66:c1:aa:a8 (SSID='CellSpot_2.4GHz_AAA8' freq=2437 MHz)
Mar 03 22:00:08 alarmpi wpa_supplicant[191]: wlan0: Association request to the driver failed
Mar 03 22:00:09 alarmpi wpa_supplicant[191]: wlan0: Associated with 08:62:66:c1:aa:a8
Mar 03 22:00:09 alarmpi systemd-timesyncd[185]: No network connectivity, watching for changes.
Mar 03 22:00:09 alarmpi kernel: IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Mar 03 22:00:09 alarmpi wpa_supplicant[191]: wlan0: WPA: Key negotiation completed with 08:62:66:c1:aa:a8 [PTK=CCMP GTK=CCMP]
Mar 03 22:00:09 alarmpi wpa_supplicant[191]: wlan0: CTRL-EVENT-CONNECTED - Connection to 08:62:66:c1:aa:a8 completed [id=0 id_str=]
Mar 03 22:00:09 alarmpi systemd-networkd[193]: wlan0: Gained carrier
Mar 03 22:00:09 alarmpi systemd-timesyncd[185]: No network connectivity, watching for changes.
Mar 03 22:00:11 alarmpi systemd-networkd[193]: wlan0: Gained IPv6LL

dhcpcd@.service

[alarm@alarmpi ~]$ cat /lib/systemd/system/dhcpcd@.service
[Unit]
Description=dhcpcd on %I
Wants=network.target
Before=network.target
BindsTo=sys-subsystem-net-devices-%i.device
After=sys-subsystem-net-devices-%i.device

[Service]
Type=forking
PIDFile=/run/dhcpcd-%I.pid
ExecStart=/usr/bin/dhcpcd -q -w %I
ExecStop=/usr/bin/dhcpcd -x %I

[Install]
WantedBy=multi-user.target

dhcpcdrestart.conf

[alarm@alarmpi ~]$ cat /etc/systemd/system/dhcpcd\@.service.d/dhcpcdrestart.conf 
[Service]
Restart=always

gistfile1.txt

[alarm@alarmpi ~]$ systemd-delta
[EXTENDED]   /usr/lib/systemd/system/dhcpcd@.service -> /etc/systemd/system/dhcpcd@.service.d/dhcpcdresta
[EXTENDED]   /usr/lib/systemd/system/dhcpcd@.service -> /etc/systemd/system/dhcpcd@.service.d/timeout.con

2 overridden configuration files found.

gistfile2.txt

[alarm@alarmpi ~]$ systemctl cat dhcpcd@wlan0
# /usr/lib/systemd/system/dhcpcd@.service
[Unit]
Description=dhcpcd on %I
Wants=network.target
Before=network.target
BindsTo=sys-subsystem-net-devices-%i.device
After=sys-subsystem-net-devices-%i.device

[Service]
Type=forking
PIDFile=/run/dhcpcd-%I.pid
ExecStart=/usr/bin/dhcpcd -q -w %I
ExecStop=/usr/bin/dhcpcd -x %I

[Install]
WantedBy=multi-user.target

# /etc/systemd/system/dhcpcd@.service.d/dhcpcdrestart.conf
[Service]
Restart=always
# /etc/systemd/system/dhcpcd@.service.d/timeout.conf
[Service]
ExecStart=
ExecStart=/usr/bin/dhcpcd -w -q -t 0 %I

timeout.conf

[alarm@alarmpi ~]$ cat /etc/systemd/system/dhcpcd\@.service.d/timeout.conf      
[Service]
ExecStart=
ExecStart=/usr/bin/dhcpcd -w -q -t 0 %I