BSNL Internet Connection and Security

In short: it’s terrible. Here is the longer story.

The Modem

The ISP-provided modem is a DNA A211. By default, it uses admin/admin credentials, and the web management console is accessible over Wi-Fi!

It appears to run a Linux 2.6.8 kernel, likely with a GNU-based userland stack. However, I haven’t been able to locate the GPL source code published anywhere on their website.

The modem requires a daily reboot to maintain a stable internet connection—I still haven’t figured that one out.

Worse, it doesn’t automatically adjust signal strength for wireless, which quickly drains my UPS battery during power outages.

BSNL Support

“We can only change your plan during the next billing cycle.”