I had meet this issue when i work as IT technical .It so use full for you and Other.
It work for me.I hop it will work for you.
Please do following the instruction below:
1) Click on Start --> In search box, type cmd --> Then "CMD" will be displayed in
the search --> Now right-click on "CMD" ---> Select "Run as administrator".
2) Now enter this command
netsh int ip reset resetlog.txt
OR this command
netsh winsock reset
Press "Enter".
3) Reboot your computer
Good Luck.