I have posted about something related in my last post
here:
http://sgforums.com/forums/2250/topics/332342
Try this:
Press Windows Key + R, type in "cmd" and press Enter, and a
black window will appear. Enter the command "ipconfig /all" and
look for the value under IP address for your router (probably
listed under "Local Area Connection"). That will be the value for
the "Default Gateway" field when setting up the static IP
address.
Regarding the IP address field, just use something like
"x.x.x.101" where "x.x.x" is the first three set of numbers from
the router's (Default Gateway) IP address.
Subnet mask: 255.255.255.0
As for the DNS server fields, use the following IP
addresses:
Singnet
Preferred: 165.21.83.88
Alternate: 165.21.100.88
Starhub
Preferred: 203.116.1.78
Alternate: 203.116.254.150
Last but not
least, you will need to disconnect and re-connect the LAN
connection for this change to take effect.