Repost of “Is Koalasafe down 7 May 2018?” from Meta
From that discussion group appears the issue started in the last 30 minutes.
My experience is:
Tried reset of router, reset of KoalaSafe, confirmed through router logs no changes in past 2 weeks. 3 hours ago, kids were surfing fine. Came back from walking the dogs and no joy.
As near as I can tell, issue started for us after 7am Monday 7th May 2018 UTC +10 timezone. Still occurring now 3 hours later