I was on my house WiFi using MX player to watch some videos and I was unable to get notifications from Whatsapp, BBM, Line unless I opened the app(s) I thought it was a memory problem and tried with only data. Again watching the video on MX player but this time arround I got notified instantaneously. Then i thought it was a problem with my ISP and tried a streaming app (ChrunchyRoll) and played an episode of a random show and I didn't have any problem streaming, but the problem with the IM apps not notifying me was present again.
Any thoughts on that? What could be causing this? I don't use any "performance" apps (no Cleam Master, Batery Doctor, etc.)
Thanks in advance.