ok here
i m now working and living in china, mobile network provider is china unicom
i need google and twitter
so i use shadowsocks
https://en.wikipedia.org/wiki/Shadowsocks
last night
switching from wifi 2 mobile network
sometimes shadowsocks app run normally but wont be any data transfer
i visit baidu.com(yes like anyother programmer we use Baidu 2 test is network working, google 2 test is shadowsocks or VPN working)
it says DNS prob
of coursr google wont be accessible 2
i put card from sim 2 to sim 1
then everthing works
when i go back 2 wifi everthing works
i stopthe wifi everthing works
great i thought
but this morning
wifi 2 mobile network same happen
i try switch APN (in mobile network, mine only card is in card 1)
things goes right
after a day's work
leave wifi
same happen
switch APN from 1 to another
does work
dont wanna do this any more
is there anyone suffer the same
