Hey Tenno,
We are investigating issues regarding login in the South-East Asia region. Thank you to those who sent in reports.
We are working on a fix to re-establish connections to our Tenno in the affected areas, and we will update you here with the most current information!
If you are having login issues, please contact our support with your logs! You can find your logs by following these instructions: https://digitalextremes.zendesk.com/hc/en-us/articles/200182250-What-information-should-I-give-when-submitting-a-ticket-
Sorry for the inconvenience!
EDIT @ 10:44am ET: We have narrowed it down to a specific ISP issue and are monitoring if this is something we can fix on our end. It is possible the specific ISP will need to provide fixes.