I am using mac book pro 13inch Touch id model with High Sierra. I captured 802.11 packets by Sniffer in Wiress Diagnostics App preinstalled in Mac Book. Then, Captured data was opened by Wireshark(2.4.4). However Wireshark said captured data was broken, it noticed "the captured file appears to have been cut short in the middle of a packet". I can see many beacon and probe response packets was broken. I tried several times, but many packets was broken always. WireShark won't be comparable with pcap file captured for Mac Book High Sierra OS ? Thanks.