How can I boost my internet speed ?

I would suggest using N or N1 wireless routers, they have better speed at range and they are getting a lot cheaper. Depending on your ISP you can get up to 300mbps.

what version of windows?

you can do the "10 halfopen connection" bypass in
xp and vista now
my help a little
but your 153.6 is pretty small to begin with

manish s said:

I bought a reliance 153.6 kbps connection but it gives only upto 4-5 kbps speed.PLEASE HELP

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Have you tried some manual ways?
No means,try to do the following instructions.
1.Get a download accelerator
2.Turn off all unused apps while downloading
3.Don't upload information while you're downloading
4.Update your network device driver
5.clear your temporary download history files.
6.Use latest version of any browser
When i had the same problem,i followed the same ways.I am sure,it's very useful to increase your,both upload and download speed.Then you can check your new internet speed using ScanmySpeed.com