Hello Forum,

I am using the ER605 in a multi-wan enviroment.

So far I have been working with WAN(Fiber), WAN/LAN1(Fiber) and USB Modem (5G) - Everything has been running smooth and without issues.

Now I have added an addtional WAN/LAN2(Fiber) and when this interface is activated the first WAN gets very unstable and even have small down periodes.

All WANs are working perfect until the first WAN gets a small down periode.

Memory usage is stable around 30% and CPU usage is 1-2%.

When I disconnect WAN/LAN2 again, the primary WAN is rock stable without down periodes again.

I am wondering if the ER605 router is incapable of handling 4 WAN in total ? It appears that 3 is the maximum for stable operation ?

Thanks in advance !

Brgds, Martin.