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Hellow, I have a problem with the database on the server (19.168.1.100). There are cases where the same records are duplicated to the database.

No. Time Source Destination Protocol Length Info 19 0.160086 195.69.209.165 192.168.1.100 TCP 60 [TCP Dup ACK 18#1] 443 → 56386 [ACK] Seq=156 Ack=551 Win=4930 Len=0

and No. Time Source Destination Protocol Length Info 812 12.160016 195.69.209.165 192.168.1.100 TLSv1 91 [TCP Previous segment not captured] , Application Data

What could be the reason for these errors? Switcher or network card in the server?

Hellow, Hello, I have a problem with the database on the server (19.168.1.100). There are cases where the same records are duplicated to the database.

No.   Time       Source           Destination     Protocol Length Info
19     19 0.160086   195.69.209.165   192.168.1.100   TCP      60     [TCP Dup ACK 18#1] 443 → 56386 [ACK] Seq=156 Ack=551 Win=4930 Len=0
Len=0
  
and 
No.   Time        Source           Destination     Protocol Length Info
812     812 12.160016   195.69.209.165   192.168.1.100   TLSv1    91     [TCP Previous segment not captured] , Application DataData