Constantly losing packets for 3 months on only games.

All games. I have tried everything 

Thanks, @stacyc23. Gaming traffic should be routing to different servers for different games. Are you perhaps having any issues doing anything else like streaming or browsing? If it is all games, it would indicate an overall connection issue. If other online activities are fine, could you list specifically the games with the problem? That would help narrow things down. 

I play games like No more room in hell 2, deadlock, team fortress 2, counter strike 2. mostly multiplayer online games

Thank you so much for for this games. Lets take a look at the account and see what is going on with your connection. Please send us a direct chat message with your full name and complete service address to “Xfinity Support”. To do so, click on the chat icon located at the top right of this forums page.
Here's the detailed steps to direct message us: 
 • Click "Sign In" if necessary
 • Click the "Direct Message” icon (upper right corner of this page)
 • Click the "New message" (pencil and paper) icon
 • Type "Xfinity Support" in the to line and select "Xfinity Support" from the drop-down list
 • Type your message in the text area near the bottom of the window
 • Press Enter to send your message

Let me know if you have any questions.