Satellite L650 - WLAN connection disconnects when the AC adapter is removed

Question

Hi,
I purchased Toshiba Satellite L650 in April 2011 in Canada.It works perfectly fine in Canada, however when I bring the laptop to HK to use, i found the wirless lan connection drops or completely disconnected very frequently.
However, my 3 other laptops in hk doesn't have that problem.
I have
- updated all the bio for window and software for wlan card;
- disable the power saving level,
- increased the the TX power lever
- did what the following link said
http://support.toshiba.ca/support/techsupport/tsbs/viewtsb.asp?docid=TSB001593
and still doesn't help.
It is really frustrated to browse when the internet is on and off.
Could someone please help?
Thanx
T

Answer 1

Thanx guys,
--I downloaded and install the update driver of Realtek _WLAN_driver_Win7_2.00.0013 through toshiba web site,
--I downloaded and install Bios "PSK1EC_PSK1FC_PSK1KC_PSK00C_PSK01C_210_WIN" through toshiba web site
-- I went to wireless Network connection -> Properties-> click on networking tab-> Configure button->Power Management tab-> uncheck the box "Allow the computer to turn off this device to save power" of Realtek RTL8188ce wireless lan802.11n PCI-E NIC (so now the box is empty)
-- I went to wireless Network connection -> Properties-> click on networking tab-> Configure button->Advanced tab -> Select TX Power Level under property -> select 100% under value
-- I went to Power Icon -> select more power option -> select change plan settings under Balance bullet ->select change advanced power settings-> select wireless adapter settings-->select power saving mode-->select maximum performance under both "On battery" & " Plugged in"
Please let me know if I miss any steps, thanx
T