Tablet [SOLVED] android cannot establish a reliable connection to the server

So you have a problem with your device,maybe you was install a custom rom or you have restored your stock ROM and you can't Connect to playstore,you can't SIGN IN google account

i got the solution

first at all,you should prepare this all
-Root Explorer
-Rooted Device

You can get root explorer on PlayStore

lets go to first step :

1. Open Root Explorer
2. Open system folder then go to etc folder
3. Find a file named "host"
4. Long press on "host" file and click open with,then click Text Editor

there will text file like down here

Select Code localhost
5.edit the text file,what you need to do it just add # on the port name,so edit it until like down here

Select Code
# localhost
diffrent port isn't the problem,don't copy my port,what you need to do its just add # on the both port number

If it helped you can click THANKS button on the left bottom, i really want to help you guys,HOPE IT HELPED