Hello we have 2 devices behind our Bt Business Hub 5 on static IP's which run their own firewall. The firewall on the bt hub is hence turned off to allow all traffic to and from the 2 devices.
I am however still getting messages in the bt hub logs related to firewall activity which are causing issue (especially in the outbound direction):-
"OUT: BLOCK [9] Packet invalid in connection (Packet not in tcp window: TCP [<snip-mydevice-ip>]:54344->[<snip-remote-ip>]:5223 on ppp3)"
OUT: BLOCK [9] Packet invalid in connection (tcp reset attack is suspected: TCP [<snip-mydevice-ip>]:56434->[<snip-remote-ip>]:80 on ppp3)
A quick google returns this page which looks to be what I need to adjust, but these settings do not seem to exist on our hub?
http://btbusiness.custhelp.com/app/answers/detail/a_id/10866/~/editing-advanced-firewall-settings
(hub firmware 4.7.5.1.83.8.200)