I could search/connect to any gaming server easily,just click it and I can join,but suddenly,I can surf the internet but I can't connect to any server,just like the server browser can't detect any server on the ip address,while my friends are in the server,when I click the refresh button,it was going to update the ping almost everytime I click it,but now I have to click it a lot of times to make it update onces,when I try to connect to the server directly,it saids fail to connect,while the server is up,this happenes to every server,but my friends can connect to it just fine.When I try to search servers in server browser,only few shows up,like 10-20,when I could search over 50 of them before.
Well I should say,this isn't happening everytime,only most of the time,sometimes everything is working fine.
not only one game,every game has this problem,or I should say,every online application,I can't connect to EA,Uplay,steam(sometimes I can't connect to steam,sometimes I can),even some voice chatting application
the weird thing is,when I unplug the power cable and plug it back into the router,things are working fine in first few minutes,I can connect to servers.I can search a lot of servers
but after few minutes,I can't search any server,but the connection to the server is still fine,but after about 30 minutes,it will lose the connection to the server.
when I try to test the ping at pingtest.net,I often fail to test it,it say something like fail to connect to test server
I am using windows 8,the router I use,which is the one my ISP gave me,it is a modem,also a router,the setting it provided is very limited.
I tried a lot of solution from the internet,like:
disabling firewall/anti virus
any help with be appreciated,sorry for bad english