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Invalid TCP state.

Ronnie Hicks1

Have three static routes for the LAN network.  We can ping from the the IP that is in the static route system but we cannot HTTPs or any other application.  We get an Invalid TCP state but than other times it shows as being allowed.  We have a firewall rule to allow these network to talk to each other.



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  • 0 in reply to LuCar Toni

    Why does it work with the old firewall in the network and not the new one running v18.5.2?

    I have the same issue with my XG115w running v18.5.2 and that is with direct connections to the XG, no switches involved. I do not see the same issue using v19 EAP.

    Ian

    XG115W - v20 GA - Home

    XG on VM 8 - v20 GA

    If a post solves your question please use the 'Verify Answer' button.

  • 0 in reply to rfcat_vk

    Invalid TCP  state is sometimes asymmetrical routing. Means the packet arrives from a different interface, as the firewall expect. If the old firewall was a different IP address, the routing is messed up in some installations. 

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