@Aron Xu, I can you be sure the problem is not Network Manager related? I do not say you are wrong, but could you point to some evidence that the Network Manager is not involved with this? Searching through the comments, the word 'kernel' does not show often and none suggest that the problem is within the kernel per say. I believe that you are closing the issue on the Network Manager hastily.
@Aron Xu, I can you be sure the problem is not Network Manager related? I do not say you are wrong, but could you point to some evidence that the Network Manager is not involved with this? Searching through the comments, the word 'kernel' does not show often and none suggest that the problem is within the kernel per say. I believe that you are closing the issue on the Network Manager hastily.