multiwan sticky connection issue

[levindecaro]

Hi,

I'm having an issue on multi-wan setup, if setting the gateway group with same weight(both tier 1), the outbound connection initiate from LAN will randomly timeout, unless I turn off the sticky connection option, timeout problem will gone, however it is not ideal for the web site require persistent state. To workaround this problem I have to define two gateway group with different preference and assign them to different client subnet in order to do sort of manual load balancing w/ failover capability. I'd like to seek advise if anyone have experience to resolve this problem.

Please refer to the diagram for the setup illustration.

The version of opnsense
###################
OPNsense 22.7.3_2-amd64
FreeBSD 13.1-RELEASE-p2
OpenSSL 1.1.1q 5 Jul 2022
###################

Regards,
Levin

[ArbosIT]

Hi Levin,

Did you ever get any answer to this or could you resolve this successfully?
We are facing an issue that could be related. We also set up gateway group with same weight(both tier 1) and Sticky Connection - and some of our clients randomly can not communicate with the internet. A client can be hit by that for 5 minutes and then it works for another 5 minutes and than it is affected again for some time....
I did not try yet to disably sticky connections yet - as I need a maintenance window first from my customer, before I turn on Multi-WAN again.
As soon as I am changing the Gateway back to "Default" again on the LAN Rule, I do not have any connection breaks anymore - but certainly also Multi-WAN not working then - as it need to have the MultiWAN Gateway set on the Firewall Rule.