i keep on disconnected every 5 minutes while playing pubg…

Did you check ‘Status -> Process’ menu to see the core logs when you get a disconnection? Please check there’s error or warning messages at there.

[WARN] [ MUDEC_00330 ] Slowed down due to speed limitation.

Please check MUDEC_00330 link for details. I think your disconnection happened due to the speed cap of Data Plan.