@mashiro
Run tracert utility? See where the connection drops?
@lucifargundam sure, thanks, i think it's due to the corporate network
@mashiro 同被企业网折磨了吗？@lucifargundam
@xiamx @lucifargundam 还好，只是内网DNS污染 
@lucifargundam @xiamx editing /etc/hosts resolves. as chinese we have rich enough experience fighting with firewall 
https://en.wikipedia.org/wiki/Great_Firewall
@xiamx @mashiro
If it's a DNS issue, have you tried just using the IP ??
Corporate firewalls are usually easy enough to bypass if you're knowledgeble.