password may not be 03(xxxx)1

I had the same problem, googled hard enough to try another method. Look up your void invoice from maxis for the account number, and plus the last 4 digits of your phone number

Eg: Your Account number: 177889900, and your phone number 03-12345678

your password will be 1177889900(5678) (without the brackets...)

and works for me.

This post has been edited by forum.bear: Jan 28 2014, 05:15 PM

First of all, thanks to the TS for the information, all work beautifully.

Here are further issues that I was facing, and got that resolved, hope the information able to save some of you time.

Phone Always getting engaged dial tone
Another issue if anyone facing the same, is that even i got my number shown as registered, I kept on getting a engaged tone.

To fix that, go to the Advance, VOIP, and click on the associate check box, then click Apply.

Phone kept on disconnecting
If your phone got disconnecting often enough, you can go to Advance, VOIP, SIP Advance, and change the session expired and minimum session expired to 0 (which means, unlimited)

got those information from the HG850a manual
http://www.docin.com/p-545975576.html

in order for the voip led light to show, the username/password needs to be correct.

Username, Auth Username will be your phone number including the area code.

eg: 0312345678

Password will be either:
0312345678 + 1
or
Account number (from your voip invoice) + 5678

once is correct, you should see registered on the front page.

HTH

want to give this user/pass a try? i got this from a online HG850a manual

telecomadmin / admintelecom

is your HG850a v3? I remember reading some post about there are different version of HG850a. According to the manual, the root / admin will get you in as well, but it might not have enough privileges... once you log in, maybe can dig around and see is there any place you change the things you need.

This post has been edited by forum.bear: Jan 29 2014, 01:07 PM