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Barcode scanner, MSSQL, retransmission...cause ?

HI, I'm experiencing intermittent slowdowns using barcode scanners in a warehouse. Here is the captured packets and the flow. One image is the flow without retransmission and the other is with. Barcode scanners are connected to WiFi and in the same subnet as SQL server. WiFi controller shows no dropped packets from client. It looks like SQL expects request from the client but when it doesn't receives it and then he sends retransmission TCP packet.

image description

Any suggestion about what could cause this behaviour, would be appreciated, thanks ;)

Barcode scanner, MSSQL, retransmission...cause ?

HI, I'm experiencing intermittent slowdowns using barcode scanners in a warehouse. Here is the captured packets and the flow. One image is the flow without retransmission and the other is with. Barcode scanners are connected to WiFi and in the same subnet as SQL server. WiFi controller shows no dropped packets from client. It looks like SQL expects request from the client but when it doesn't receives it and then he sends retransmission TCP packet.

image descriptionimage description

Any suggestion about what could cause this behaviour, would be appreciated, thanks ;)

Barcode scanner, MSSQL, retransmission...cause ?

HI, I'm experiencing intermittent slowdowns using barcode scanners in a warehouse. Here is the captured packets and the flow. One image is the flow without retransmission and the other is with. Barcode scanners are connected to WiFi and in the same subnet as SQL server. WiFi controller shows no dropped packets from client. It looks like SQL expects request from the client but when it doesn't receives it and then he sends retransmission TCP packet.

image descriptionimage description

Any suggestion about what could cause this behaviour, would be appreciated, thanks ;)