Running a Balance 305 HW2 with firmware 6.3.3
WAN 1: 200 x 200 fiber circuit (and configured with those speeds in the WAN setting)
WAN 2: 150 x 20 cable circuit (configured appropriately)
WAN 3: 100 x 10 cable circuit (configured appropriately)
My “Outbound Policy” is set to “Custom” and am running HTTPS Persistence followed by the default rule of “Overflow” where I have the WANs listed in order of 1 -> 2 -> 3
My assumption here would be that traffic would use WAN 1 until it reached ~90% utilization and then shed load to WAN 2, etc. What I am seeing at any given moment is 60% of the traffic on WAN 1, 30% on WAN 2 and 10% on WAN 3. None of the WAN ports are above 50% utilization - ever.
Even when overall traffic use is very low on the router, it is utilizing all 3 WAN ports all the time roughly following the 60/30/10 split regardless of traffic amounts.
There are no firewall rules in place utilizing specific WAN ports or IPs. All custom 1:1 NAT mapping rules are done on IP addresses on the WAN 1 port only.
What am I missing? I do have the “DSL/Cable Optimization” checked since two of the WAN ports are cable lines.