OS: Ubuntu 16.04 LTS
Memory: 7.7GiB
Processor: Intel® Core™ i5-5257U CPU @ 2.70GHz × 4
Graphics: Intel® Iris 6100 (Broadwell GT3)
OS type: 64-bit
Disk: 37.0 GB
Machine: Macbook Pro A5102
uname -a: Linux caleb-macbuntu 4.8.0-41-generic #44~16.04.1-Ubuntu SMP Fri Mar 3 17:11:16 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
uname -r: 4.8.0-41-generic
当我合上笔记本电脑盖并再次打开时，互联网停止工作。浏览器，ping等等。我必须service network-manager restart让它重新工作。我该如何解决这个问题？