@Mr.J.D You will have to look at the switch specs to see if it will be adoptable to Omada Controller. I do not think that switch model can be managed by the Omada Controller.

@Saamoss I didn't see that you mentioned Rate limits and Traffic limits? Have you tried both these options? Did you try vouchers with 1 use rate enabled?

@watou Yeah some router do not like to be double nat'ed, thats why I was asking. MOST older devices didnt care, but now, most devices can detect it. Does that SPA device have a DMZ option? You could...

I would assume you would need a full-stack to get the fullest reporting capabilities from the controller. The switch would run DHCP Snooping and other protocols to fill in data within the controller....

@watou Hmm... This is very interesting. Is there a reason you still have the SPA up front? Not put it behind the 605? Also, I would configure the SPA to a remote syslog server and see what it spits...

IF that doesn't work... Try to disable SIP and H323 ALG. SIP ALG confuses some phones and pbx's.