@Clive_A Hello. 6120 have the same problem with Policy Routing. I wrought higher that this problem migrated from 6120 to 8411. 6120 have no problem with traffic hangs when WAN switching...

P.S. once more switched 30+ my routes from Static to Policy Routing. Few hours later some users got an issue of a "low speed internet". Low speed was caused by 0.0.0.0/0 route to VPN Client Gateway...

@Clive_A Thank you for the fast answer! Of course I understand that efficiency problem caused by some WAN-switching algorithm.. not CPU. My situation was: 1 of 3 WANs (100mbits + 100mbits + 300mbits...

@Clive_A Hello! I see, ok I will try to describe bugs here. As an owner of both 8411 and 6120 devices I made a conclusion that older 6120 was much more faster but I think Tp-link engenering team will...

@Clive_A Hello! can you connect p2p to me please? I've tried to wright personal message but it was rejected by forum.

In addition a picture that describes why I've stop useing Policy Routing and changed it to Static Routing after 18:00. This ping made to one of the routes and was ~300ms by Policy and ~4ms by Static....