@NTM I switched to IPv4 and it's working. But there is another problem. My PC connect to router, my NAS is XXX.cloud.com DDNS by IP. I can visit XXX.cloud.com when not using WLAN or using IP when using WLAN. But when i use WLAN, i can't use XXX.cloud.com to visit my NAS. it said "ERR_CONNECTION_REFUSED", sames like that route is blocking me to use public IP to visit my NAS in internal environment. Maybe any solution?