Fix Dota 2 Searching Network Problem

Here to teach u guys fix the searching network for dota 2

1. close all dota2 and steam 
2. right click steam icon then click properties
3. u will see "target"at there writing >"C:\Program Files (x86)\Steam\Steam.exe" right?
4. add space and "-tcp" example like this>"C:\Program Files (x86)\Steam\Steam.exe" -tcp
5.  then click aply then ok,reopen the steam then launch dota 2

Done