OC200 (5.12.9) + ER605 (2.1.4)

Is there any new firmware coming for the ER605?  I switched back to it for a bit and it's honestly getting on my nerves again.

Anytime I change a port forward turn it on or off or add one, if I change a bandwidth setting an ACL rule adding or removing an IP to block etc............ essentially the net instantly drops for everyone and then it takes like 5 minutes for the entire omada system to sort itself out.

Seems like the modem reboots, then we wait wait wait......... then it adopts, joins the net, drops it as it reconfigures itself blah blah blah.

It's all just a bit stupid.  It works PERFECTLY FINE if you "dont touch it"......  but it rebooting because you add or remove a port forward or basically just ANY SETTING.....

I've tried all different ways of hooking it up with the lan cables and power for the OC200 etc, it just is no good.  Why?

Is it my 172.16.x.x and 255.255.x.x type setup..........  is it something to do with my port timeouts ........  

Simply disliking me, my posts and hating on my winge about this/these products not working........ I would like some results, things being fixed.  I do actually manage hmmm maybe like 10 business omada's now ....  not using the ER605 but more varied higher end models.

I would like to have the confidence of changing common things without the net dropping or the modem rebooting.  That's my END GOAL.  Again very basic home modem/routers can do this, why can't these Omada based ones.