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NSA 4600 - dropped packets for invalid TCP Flag #1

Getting some dropped packets on the sonicwall with the below error

any idea what could be causing this.

DROPPED, Drop Code: 70(Invalid TCP Flag(#1)), Module Id: 25(network), (Ref.Id: _5712_uyHtJcpfngKrRmv) 1:3)

Seen this but not resolved the issues (noticed the flag is #2 not #1)

https://www.sonicwall.com/support/knowledge-base/dropped-packets-because-of-invalid-tcp-flag/210614064540070/

Category: Mid Range Firewalls
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