I'm having some problems with a Scientific-Atlanta DPR2320R2. In specific with the WIFI. A few months ago I changed its password and username and now I can't remember.

So I tried cracking it with Hydra but it drove things worse. Content of webadmin was rendered partial, and threw lot of errors.

I then reseted the router. I found myself abled to browse the web with ethernet-connected pc. Wifi is configured by registering the device's MAC Address, and indeed the router has been reseted and register MAC address were lost. No device could connect to wifi.

In fact, the device does not even recognize the network. I tried the pointing to 192.168.0.1 to restablish the MAC's.

But I couldn't connect to the router access point.

Tried listing up hosts:

$ nmap -sP 192.168.0.0/24

Starting Nmap 5.00 ( http://nmap.org ) at 2012-12-11 01:18 ART
Host 192.168.0.1 is up (0.0018s latency).
Host 192.168.0.11 is up (0.00025s latency).
Nmap done: 256 IP addresses (2 hosts up) scanned in 59.62 seconds

Then checked 192.168.0.1 was really up by sending pings. It responded to all my pings.

I quick-scanned the access point:

$ nmap 192.168.0.1

Starting Nmap 5.00 ( http://nmap.org ) at 2012-12-11 01:08 ART
Interesting ports on 192.168.0.1:
Not shown: 999 closed ports
PORT   STATE    SERVICE
80/tcp filtered http

Nmap done: 1 IP address (1 host up) scanned in 6.73 seconds

Look the state of the port 80: FILTERED.

I'm pretty confused now. Any suggestion would be appreciated.

Thanks in advance.