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You have packet loss; an 802.11 ACK was not received within the alloted time window, so the sender will retransmit, this time (and subsequent attempts) with the Retry bit set. After a certain number of these retries, sender will usually give up and drop the frame.
You have packet loss; an 802.11 ACK was not received within the alloted time window, so the sender will retransmit, this time (and subsequent attempts) (an subsequent) with the Retry bit set. After a certain number of these retries, sender will usually give up and drop the frame.