On 1/15/2014 00:56, Ku Wei Xiong wrote: > > How to set up timing if NTP was block by ISP? Perhaps your ISP is just blocking NTP servers outside your country. I believe the telephone number you gave in your signature terminates in Thailand, so try using th.pool.ntp.org. That domain name will resolve to an IP that is in Thailand. If my guess about your country is wrong, the same advice applies, except that you will of course need to seek out a different section of the NTP pool: http://www.pool.ntp.org/