This is all history now, at least for another 210 days (next "year's" Nyepi.
I got up at 4am (after midnight before Nyepi Day), turned on a PC, laptop, and smartphone, connected my VPN to three of its servers (Singapore, Malaysia, Japan), and left it on. Later on, no connection to any of them. On one of my wife's smartphones (without VPN), she could connect briefly, (a few minutes), until she couldn't (using Telkomsel).
Unsure if this is related or not, but I wonder about the modems that companies "give" us when we sign up.
Take IndiHome, for example. Is the modem they provide a cheap and nasty affair, that gradually decreases in "performance" over time, to get people to upgrade to a more expensive service "package"? If you upgrade, do you get a "better" modem?
How about buying your own 3rd party high performance modem? Might be better, if you can configure it when you take out the one given to you to access whatever ISP you were using.
Then there's the package you already have, probably has things like TV/Video stuff to connect directly to your TV via a HDMI cable.
On a lighter note, one of my best laughs so far this week was a person who asked something like:
"If I have good anti-virus software on my computer, is my computer safe from catching the Corona virus?"
True.