Test result:
- Default configuration was applied.
- Ping to all local IP is done well (all 192.168.2.*, all 192.168.1.*, modem's public IP).
- Ping to ISP's DNS is failed. The same problem to all IPs out there.
Otherwise, connecting laptop directly to modem allows me to connect to internet, so I have a conclusion that this is not about my modem. I also had checked default NAT and firewall rules, all looks well.
Note that this problem did not occur before NetInstall, I had used the box for my home about ten days before.
Does anyone have suggestions how do I start debugging this problem? A bit strange for unusual problem.
Thank you in advance.