kimau79

Hi Chris, 
 
Thanks for the warm welcome.
 
Unfortunately your suggestion did not work, but I've found something interesting instead:
 
In 3G mode I put the computer into hibernation. Later I used the app to wake the computer. The screen reads "wake up command failed", but the computer successfully woke up. This is the same case if in hibernation state, I temporarily cut off power supply for a very short period of time. (eg. if I plug off the power cord for around 3 seconds)
 
Soon I realized that in hibernation state the network port remains in function and the same internal ip address is still assigned. I think this means it is likely the router problem.