AU server seems to be back to normal. Connection wasn't the issue for me originally. Showing all bars full. Was a real jumping/chopping issue. I'd be running along then jump back 10 steps... run more... jump ahead... jump back... Anyway, all seems to be fine again so I guess it'll just be one of those mysterious things about technology... all good now.
Nice to know it's not just me... I think the AU server is being a bit finicky just at the moment... I'm keeping an eye out for this again and will see if I can catch a recording of it to post on the Respawn official forum to see if it's a known issue... The problem is of course if the AU server is playing up... we'll lose even more players pretty quickly and finding full matches will possibly get even worse...!!