Enter CTRL-Z at the privileged mode prompt.
I assume your server is a gateway... One of the reasons is that it is not configured properly or one or more services have failed require attention of network administrator.
A network technician is someone who installs and maintains a network. They are responsible for ensuring that it is configured properly and running smoothly.
IP addresses are assigned by the network administrator, or ISP. The computer does have to be configured manually to respond to that specific address.
You can use its IP address or network name (your firewall has to be configured properly).
Should have a LAN Card installed & configured properly on the Computer to connect it to network.
Network Administrator.
If your router is configured to work in G mode only, then the answer is yes. If the router is configured to use mixed mode (B and G), then the answer is no. N type adapters will perform as they are supposed too (if the router is configured properly).
A network that has ten or more nodes is usually configured as a client/server network.
There are multiple reasons including damaged wires, network ports were disabled, cable is designed for a different kind of network, your firewall is not configured properly and so on.
The administrator can set up a Local Area Network (LAN) behind a firewall in which he can assign whatever IP address block he wishes. The firewall and router will then need to be configured to Network Address Translate (NAT) the 'hidden' internal IP addresses used on the LAN to the one assigned by the ISP when network traffic needs to leave the LAN.
This device is called a ROUTER. Routers are by default configured to not pass the broadcast traffic to another networks to which it connects. But by some means it could be also a SWITCH - sometimes it can be configured to filter different type of network traffic.
You can become a network administrator by creating your account and ticking that you will be the network administrator and that you are allowed access to everything.