Noticed this happening in the last week and half or so. My ping jumps from around 20/30 to around 120 (using the bandwidth graph monitor on BF4 I witnessed these figures) then drops back down. It happens about once every 60 seconds or so. Not massively noticeable in some games whilst very jarring in games like FIFA where by the game freezes during the process.
It's a shame I have 152mb and gaming is the most important part (for me in usage) that suffers and not download speeds (which are very very rarely affected)
I also use a bandwidth monitor to make sure there's no background programs (or even worms/viruses killing my upstream/downstream). Some of those spikes were from me uploading couple times a day in the previous picture but all the 95% of the other stuff seems to be out of my control it seems