@Kevin_Z Updated below firmware. speed reduce 50Mbbs again change to old firmware version and also not working voip Currently now using below firmware xc220-g3v v2.30 Tp link model got same error...

@Kevin_Z Upgrade new firmware Get error register fail response code(502)

Same configuration working in DBC routers

@volunterman yes vlan 1849

Reset my Router XX530V . Get below Error Please help me

TP LINK XX530V BSNL VOIP is not working get error " register failed, response code( 502) " Caption