[justinarmstrong]

Thanks for that, im fairly new to all of this and not sure what you mean.
Everything is working ok but its just the broadband is interrupted when the fax is in use.

On the filter (Line) is connected to my telephone, and (dsl) goes to TEL in the back of my fax.
And the EXT of the fax goes to the back of the router.

If I connect the filter (dsl) to the router then I have nowhere to connect my fax.