Step 1: http://prntscr.com/76gwah (Setting Up Proxy)   
Step 2: http://prntscr.com/76gwfq (lan Config) 
 
Step 3: http://prntscr.com/76gwmz (use proxy server for every connection, DISABLE it!)   
I Had the same prob. after i changed it it wors fine for me. give it a try