hello I am samyad I have a network of 20 systems where 3 internet connections are there and I have been given 3 gateway series i.e..192.168.0.1, 192.168.1.1 and 192.168.1.3 but I am not able to access all the computers my server is connected to 0.1 series and computers of 0.1 series can access my server but not other series 1.1 and 1.3 series can access my server and my printer is connected to this server by this all my printing work from other computers has been stopped.

This sounds like routing issues. Where you are connecting between different subnets you have a proper route in the routing table. Where you're not, you either have a route with an error in it, or not route at all. If it were me, I'd look over the routing tables carefully as it seems likely this is where your issue is.