I seem to have the same problems with wireless network.
I am using the latest PeNetwork by ChrisR
History050=ChrisR - Win7pese shares the same plugin now - Date:2017.01.14
I don't know if this log has anything to do with it winpeshl.log
Info Windows PE Shell beginning execution
Info Beginning PNP initialization.
Info Winpeshl.ini detected.
Info Succeeded launching (null) [MountPEmedia.exe]
Warning Failed to launch (null) [hide /NOCONSOLE /SILENT /WAIT start.cmd] [0x80070002]
Info Succeeded launching (null) [Shortcuts.exe -f X:\Windows\System32\Win7PE.cfg]
Info Succeeded launching (null) [PinTool.exe -debug X:\Windows\System32\Win7PE.cfg]
Info Succeeded launching (null) [Pecmd.exe Main X:\Windows\System32\Pecmd.ini]
Info PNP initialization succeeded.
Info PNP Initialization thread terminating.
This is the error messages that received when PE start up.
Hope any of the attachments help.
I used this PeNetwork before and it seems to load extra info, which lets
the wireless network work.