A segment of the Asia-Pacific Cable Network 2 (APCN2) undersea cable network between China and Taiwan suffered a serious cable fault on Wednesday, causing Internet traffic to be rerouted onto other undersea cables and slowing Internet access for some users in Southeast Asia.
At about 10:50 a.m. on Wednesday, local time, an alarm signaled a cable fault on Segment 7 of APCN2, which connects Hong Kong and Shantou, China. The disruption caused a temporary loss of service on the undersea link but all customers that use the cable were soon shifted to capacity on other cables, according to a source familiar with the situation.
The APCN2 cable is owned by a consortium of 26 telecom operators from 14 different countries. The cable links Singapore, Malaysia, the Philippines, Hong Kong, Taiwan, China, South Korea and Japan.
The exact cause of the APCN2 fault was not immediately known. The alarm indicated the disruption was caused by a "single point of failure," which suggests a variety of possibilities, including a technical failure or a cable cut, the source said. One cause can apparently be ruled out: Taiwan's Central Weather Bureau did not record signs of [[xref:http://www.cwb.gov.tw/V6/seismic/quake_index.htm?|seismic activity|