I have a win 2k3 server that has a modem connected to its serial port, this modem is used for our credit card connection, and connects once or twice an hour depending on time of day.
clients that are remote, or via vpn get disconnected from the server completely when the modem connection is established. Pinging fails and even file shares are not accessible when this modem connects. as soon as it drops the connection everything works fine again. Machines that are in the network for the most part are fine, but occasionally they lose their connection as well.
i took a look at the server and found the following. if I do a route print, The top listing is:
0.0.0.0 0.0.0.0 (the network gateway) (network interface) and the metric is 1
this is how it should be as far as I know. when the modem connects however, it adds another route, which is:
0.0.0.0 0.0.0.0 (the modem IP) (Modem interface) and the metric is 1 This also changes the metric of the default route from 1 to 2 (see the attached code print, this is when the modem is connected. it even lists the default gateway as the 192.168 modem connection address.
Is there a way to hardcode the network connection so that the default route stays default, and doesnt change when the modem is connected? I have the metric set to manual on the network card, with a value of 1, and it still changes.