Frequent hm2_eth failures on launch

About half the time I start linuxcnc 2.9.0~pre0.1260, I get an error like the one below. Trying again immediately after usually brings it right up.

Found file(REL): ./plasma.hal
Note: Using POSIX realtime
hm2: loading Mesa HostMot2 driver version 0.15
hm2_eth: loading Mesa AnyIO HostMot2 ethernet driver version 0.2
hm2_eth: 10.10.10.10: Hardware address: 00:60:1b:15:00:21
hm2_eth: discovered 7I95
hm2/hm2_7i95.0: Low Level init 0.15
hm2/hm2_7i95.0: Smart Serial Firmware Version 43
board fails HM2 registration
hm2_eth: rtapi_app_main: Resource temporarily unavailable (-11)
./plasma.hal:25: waitpid failed /usr/bin/rtapi_app hm2_eth
./plasma.hal:25: /usr/bin/rtapi_app exited without becoming ready
./plasma.hal:25: insmod for hm2_eth failed, returned -1
Shutting down and cleaning up LinuxCNC...
Running HAL shutdown script
hm2: unloading
Note: Using POSIX realtime

hm2_eth: rtapi_app_main: Resource temporarily unavailable (-11)

This usually mean there some kind of network setup error or you have lost Ethernet communication in the driver initialization phase

What does

ip a

report

Does pinging the card ever fail? If so what message do you get?