ethernet problem after software reboot

Park
Greetings...
I have a ethernet problem after software reboot.
After rebooting programmably, network is not working.
But, after rebooting manually such as pressing reset button or powering
off, all is o.k.
It seems to be very strange and serious bug in ethernet.
Is there any solution for this problem?
Please, let me know.
Thanks.

* There are same comments for this issue. Pls, refter below.

http://www.friendlyarm.net/forum/topic/2670
http://www.friendlyarm.net/forum/topic/2426

heads82
Hello.
have the same problem.

solution is a USB network adapter?
Which USB network adapters are compatible with the mini 2440?

thx