Which interface for SQM?

Hi guys ,

I'm using openwrt for SQM especially.The main problem is when i'm gaming with Lan my wife watches netflix (mobile phone or tv with wireless) and ping spikes 15ms to 140ms.

I must use VLAN id 35 to connect to the internet so i created " wan.35 " interface.

When i select the wan.35 as SQM interface name it didnt work but when i select tunnel interface pppoe wan it actually works but not like a charm.Ther can be ping spike 15 to 28 ms again.

Can you help me which interface must i select? And is there any addition settings for wireless connected devices? Than you!