Latest update from LSP, they found alarm AIS/power coming from customer site.
Please kindly check the power issue with your end customer.
The RFO for the outage earlier (21/02/2015 20:29 – 22/02/2015 10:50 UTC+7), LSP contact with end customer (Mr. Sirawat – IT department).
He found the power line which connect to the equipment was loosen.
Then he plugged/unplugged the power line for circuit restoration.