Multi-WAN, but all Clients on one DSL line

luas

Hi,
since quite a while, we have an issue with our WAN connection: most of the time, all clients (several dozen) share one line. The round-robin-distribution among our three DSL lines apparently stopped working. Sometimes, all clients "hop" to another DSL line, so first DSL1 is congested, then all of a sudden DSL2 is congested. I can't precisely say, when this started - maybe with a software update.
I went through all the instructions in the pfsense HTML book, but didn't find a mistake in our config. The only thing that made round-robin work again temporarily was to disable sticky connections. But then again, of course, onlinebanking etc. refuse to work. Any ideas?

You could try out to Change the Trigger level shown here under that link

luas

We tried several of those (member down vs. Packet Loss/High Latency) with no improvement.
Generally I'm unsure how this setting applies as we're not looking for failover, but loadbalancing.

Any other ideas?