User's Manual

Create a Connection 23
13. If you need a User ID and Password to logon to your service provider enter them into the
specific fields. If you don’t need a username and password leave the fields blank. Click Next.
Note:
Some versions of Windows
®
deliberately change the number of asterisks that represent
a password and place asterisks in the password field when the password is blank in order
to make the display secure.
14. Click Finish to create your connection or Back to review your settings.
TCP/IP Optimisation
To take full advantage of the high bandwidth of the GC82, the TCP/IP packet size should be changed
from the default Windows setting of 16k for Windows 2000, or 64k for Windows XP. Sony Ericsson
recommends a TCP/IP packet size of 52k for optimum performance with the PC Card.
The Windows Registry parameter to be changed is ‘
TCPwindowsize’, at the registry location:
HKEY_Local_Machine\System\CurrentControlSet\Services\Tcpip\Parameters\
The required ‘TCPwindowsize’ entry is:
HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\
However, a PC that has not previously had its TCP/IP packet size changed from the original default
value will not have a ‘
TCPwindowsize’ parameter entry, and thus a new entry must be created.
Caution!
This setting affects all network adapters in the PC and therefore should only be changed by
experienced users.
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Make a backup of the registry before making any changes.
Modify a Connection
1. Select Modify a Connection. The Select a Connection drop down menu is activated.
Click on the menu and select the connection you want to modify.
2. Click Next.
3. Change settings as required.
Delete a Connection
1. Select Delete a Connection. The Select a Connection drop down menu is activated.
Click on the menu and select the connection you want to delete.
2. Click Next. The Success screen is displayed. Click Finish to close the Connection Wizard.