Quote from JackR:
From the TWS Help:
Using IB Server Global Settings
You can elect to use either locally saved settings or "global" settings, which are settings you save to the IB server to ensure all of the modifications you make to your TWS environment, such as adding pages and contracts, changing the layout and creating workspaces, are available to your regardless of where you log in.
The setting Store settings on server appears on both the login box and in the TWS File menu, and it serves two purposes: it USES the global TWS settings that you elected to save to the IB server; it SAVES your current sessions changes to the IB server so that these settings will be available to you globally from any PC.
If you log into or out of TWS without having checked this feature, any changes to your trading environment are saved locally, and can then only be accessed when you log into this same machine.
To save your settings on the IB server -
After you're logged in, go to the File menu and check Store settings on server. Please note that this feature must be activated manually, it is not checked by default.
To use global settings that have been saved on the IB server -
On the TWS Login box, check the Store settings on server box. This instructs TWS to go to the global server and use any settings you saved previously.
Note that if you elect to leave this box unchecked, TWS will use the last settings saved to this specific PC.
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Ensure all versions of the TWS are 874 or newer.
Jack