I use a Utstarcom WA3002G4
router .........
If you had not used any security key when you made settings for the
Wireless in your ROUTER, your BB connection signals will be
RADIATED to all neighbourhood and any one having a
Laptop or desktop computer with a WIFI adapter,
can enjoy Internet connection
from your Plan 750U/L.
Nobody affected.
2. Your 2 Mbps speed : are you still getting it ?
Since you claim that it was due to your neighbour's
connection, since disconnected .
3. If you had used your neighbour's ID and PW and downloaded
at 2 Mbps speed , what you down loaded excitedly
and happily will be added to his account.
4. If same done with your ID and PW speed of 2 Mbps could be
bsnl fault, as you might have changed your tariff plan from a 2 Mbps connection.
5. Check his usage with his 14digit portal ID for August 2009 for break up.
Usage check at
http://data.bsnl.in
for you this website needed to change PW check "My Orders" etc.
6.I use two laptops. One in WIFI mode ( inspiron 8000)
and another in LAN mode.(
Sony)
I cannot check WIFI status in SONY,( No wireless LAN adapter)
or
status in Inspiron( No ethernet card)
Secured with WPA key.
REFERENCE:
http://www.chennai.bsnl.co.in/BBS/Wireless/WirelessSecurity.htm#WA3002_Modem_configuration: