now I know how to fix it because my cloud mtu is 9001 and I changed it to 1500 as the standard one, it works fine now.
ens5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9001 qdisc mq state UP mode DEFAULT group default qlen 1000
changed to
ens5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq...