ORA-12535 Connection timed out

[chiranjp]

Here's the situation:

I am getting the ora-12525 tns timeout error when trying to connect to
my oracle server at home from my office computer.

I am running Personal Oracle 8i on Windows 2000 Advanced Server.
I use a NetGear wireless router with port forwarding to 1521.
My listener has the connect_timeout parameter set to 0.
I also added the parameter use_shared_sockets = true to sqlnet.ora
tnsping seems to work successfully.

Here is the output from tnsping:

Used TNSNAMES adapter to resove this alias
Attempting to contact <DESCRIPTION = <ADDRESS_LIST = <ADDRESS =
<PROTOCOL = TCP>
<HOST = MYHOSTNAME><PORT = 1521>>> <CONNECT_DATA = <SERVICE_NAME =
MYSERVICE>>>
OK <1840 msec>