Here is from one of the minidump files - it references the nwifi.sys:
FAILURE_BUCKET_ID: AV_**nwifi!**Dot11PacketConverterReturnPacket
Can you obtain an updated driver for the wireless adapter?
Also, third party firewall drivers can contribute to the error so if the issue persists can you provide the following file which has more information on the crash:
C:\Windows\MEMORY.DMP
The memory.dmp file will be quite large, you could zip and compress the memory.dmp file with a third party application such as 7-Zip.