New connection of Trib Unlimited 512 Kbps rs. 999/- DOWNLOAD SPEED PROBLEM

My old plan was hathway 512 kbps night Unlimited 54 to 60 kbps download speed.

I connected the new plan of MTNL Trib Unlimited 512 Kbps rs. 999/- on 15 sept 2009 with new router Sterlite sam300 ax.

I should get download speed of around 480 to 512 kbps right
but i am getting only 54 kbps download speed.

pls help me.

I tried
Ph. : 1800228844 / 1504
(Online Complaints) Mahanagar Telephone Nigam Limited, A Government of India Enterprise.

First they told me that its due to my usb connection then i connected a laptop via lan still same PROBLEM.
Then they told me may be my phone line is not correct but after test
my line has no problems.
I have a full page of no.for complaint but nothing works.:52:
I am in Thane area.

//Moderator note: You have not activated your account and hence your posts are going into moderation queue. Please click on the link in the mail you received from the forum admin in your mailbox. Failure to do so will cause all your posts go into moderation.
- just4kix

Dont get confuse between kbps and kBps.
It is 512kbps(kilo bit per second).
So in Kilo Bytes(kBps), divide 512 by 8.
because 1 byte=8 bits.
So we get 64kBps(is the max. for 512kbps).

Dont get confuse between kbps and kBps.
It is 512kbps(kilo bit per second).
So in Kilo Bytes(kBps), divide 512 by 8.
because 1 byte=8 bits.
So we get 64kBps(is the max. for 512kbps).
and for 1Mbps- it is 128kBps.