That can also be due to using network drivers that are:
1)  Designed for Windows XP
2)  32-bit Unsigned Drivers
3)  32/64-bit driver that's signed but not WHQLed
4)  Out of date / Has bugs
5)  BIOS bug when resuming from S3/S1
If possible, try to go to the vendor of your computer and update the network driver or the manufacturer of the part and get a reference drive.  Make sure the drivers are both *signed* and *WHQL*ed.