Battlefield4

[#1]

Hey, I've been using PlusNet Broadband for quite a while now and perfectly happily, I do a lot of gaming on my PC and have the Unlimited package, I've logged considerable hours in various online/multiplayer games with only a few minor connection hitches, but recently I've been playing Battlefield4 and using TeamSpeak to chat to my buddy whilst we play, sometimes it works perfectly fine, a ping of around 30-40 on the server we always play on.
Other times its barely playable at all, immense 'rubberbanding', big lag spikes and disconnects, when it disconnects, both my Game and TeamSpeak disconnect, but more often than not everything else is still working, Steam stays connected, web pages open and load as they should...I've checked all the ports it recommends are open and have done various bits of research around the interweb for possible solutions.
It's getting fairly rage inducing now as it only seems to happen in this one game.
Just wondered if anyone could shed some light/give me any assistance, Thanks
Jack.

[#2]

BF4 is real buggy at the moment  but i can play 95% of time brilliant .
first of all is your PC up to spec for the game ? what connection are you on ? what is your speed test , have you tried http://speedtest.btwholesale.com/
and turn off UPNP off in the router helps

[#3]

Do any of the disconnections you are seeing correlate with the drops on here?