We have recently moved from a managed office to our own premises. We have a bespoke VB database that uses Oracle XE which worked fine in the old office where we were provided with one network connection to which we connected our PCs etc via our own router.
In the new office we have the same set up, with the same PCs (one of which hosts XE), except that instead of a managed network connection we have BT Broadband through a BT Business hub.
I can connect to XE on the server PC (PC we use as a server running XE on XP) using SQLPLUS and the VB.net database.
The client PCs however all TNS time out. Each can ping the server PC by name and IP address so the network is ok.
When I ipconfig on the all the PCs I now get a Connection Specific DNS Suffix of gateway.2wire.net which appears to have been set automatically when we connected the PCs to the BT Business hub.
I have tried using this in the connection string with sqlplus but to no avail.
When I netstat on the server PC there is the listener on port 1521.
There are 4 other port 1521 connections.
I thought this might be a conflict so I have tried to move the oracle listener to port 1522, but have still had no luck connecting from the client PCs.
I have tried to connect the PCs via the original router we used to use, without the BT Business hub at all, but even after rebooting the PCs the is still this Connection Specific DNS suffix of gateway.2wire.net
I am not sure what if this has anything to do with the issue or not, but our broadband connection is the only thing to have changed since our office move. All the tnsname entries still point the the server PC which I can ping. The database is exactly the same on the same PC that it always was.
I have run out of ideas?
Any help would much appreciated.