An Indonesian isp has issues.
Purple have problems connecting to google or cloudflare dns.
This should be fixed soon.
Thank you for giving clearance of the problem. I'm also from Indonesia, and i've been having the exact same issue. My problem also started exactly one day ago like the OP of this thread. I've tried everything regarding DNS Server change, but nothing works. Now, i have a feeling this problem is widespread thorought Indonesia. Thank you for your service on fixing this issue, we'll wait to play using Aternos again 