kamalkh wrotei was hoping more for a solution.. what do you mean eventually goes away? is this some kind of a router flu or smth :P?
how can i save my settings so i can reset to factory default and then insert them back?i can't remember my user and password.
I guess it is some sort of flu, if you put it that way, there are all kinds of weird things in networking.
Your username should be written
here (Insert the username password of your modem (Most probably, Username : admin Password : admin
OR Username : user Password : user))
Your password is the last 2 letters of your username 3 times, for example if your username is L123456, then your password should be 565656.
You could always call their Technical Hotline
1278 to get your username and password if it's something else.
Here's the tutorial of configuring your modem .
Good Luck !