Mikrotik How To

Wireless retransmission is when the card sends out a frame and you don't receive back the acknowledgment (ACK), you send out the frame once more till you get back the acknowledgment. Wireless retransmits can increase the latency and also lower the throughput of the wireless link.

To check if the wireless connection has wireless retransmissions you need to compare two fields in the wireless registration table: frames and hw-frames. If the hw-frames value is bigger than frames value then it means that the wireless link is making retransmissions. If the difference is not so big, it can be ignored, but if the hw-frames count it two, three or four times or even bigger than the frames count then you need to troubleshoot this wireless connection.

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