TCP connection no longer working after Windows update KB5019959

[wollewolle]

Hi,I'm running a server on a Windows 10 machine via IPv6 on a TCP port.After installing KB5019959 I could no longer connect to it using the devices public IPv6 address.I tried disabling the Windows firewall completely but still no success.After uninstalling this specific update, I am again, able to connect to the server but I'd really like to continue updating the machine.Any help is appreciated, thanks.

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