Comtrend ADSL2+ Router CT-5621T

There's quite serious security problem with this routers (not sure if it applies to exactly this type) 

if your password if not the default you should try other account:
(username / password)
admin / admin
support / support 
user / user 

if you are logged in as a "user" you can't change anything but you can access change password page e.g.

http://192.168.1.1/password.html

then open source code of this page and inside javascript code you will find your password in plain text
<!-- hide
pwdAdmin = 'admin';
pwdSupport = 'support';
pwdUser = 'user';

I used the following for username and password and it worked!! User name: user, password: user

Try this one Enter your username and password, By default both the username and password are admin. Click the Ok button to log in to your router.. If the default username and password wont work the next step here is to reset the router so it will be back to its default settings with the default username and password....

Don't forget to rate the solution FIXYA thank you...

C est vrai ta demarche et c'est bien mais pour moi j ai trouve ceci pwdAdmin = 'MTIzNDU=';
pwdSupport = 'c3VwcG9ydA==';
pwdUser = 'dXNlcg==';
et apres qlqes lignes
if ( encode64(pwdOld.value) == pwdAdmin )
donc il faut decrypter avec ce site ca fonctionne http://www.base64decode.org/dec tu aura le mdp

COMTREND CT-5621T: PPP down and LCP keepalive fail after long time running.
Power off and wait about 10 minutes.
MF should explain more detail and send to [email protected] or [email protected] pls!

I nedd driver mordem Comtrend ADSL CT5621T !! Help me !!! Thanks !!

Actually, the username and password for that modem (by default) is root / 12345