diff --git a/Quake/net_dgrm.c b/Quake/net_dgrm.c
index 525be922..b41d5a2c 100644
--- a/Quake/net_dgrm.c
+++ b/Quake/net_dgrm.c
@@ -792,8 +792,7 @@ JustDoIt:
 
 int Datagram_Init (void)
 {
-	int i;
-	int csock;
+	int i, csock, num_inited;
 
 	myDriverLevel = net_driverlevel;
 	Cmd_AddCommand ("net_stats", NET_Stats_f);
@@ -801,14 +800,19 @@ int Datagram_Init (void)
 	if (COM_CheckParm("-nolan"))
 		return -1;
 
+	num_inited = 0;
 	for (i = 0; i < net_numlandrivers; i++)
-		{
+	{
 		csock = net_landrivers[i].Init ();
 		if (csock == -1)
 			continue;
 		net_landrivers[i].initialized = true;
 		net_landrivers[i].controlSock = csock;
-		}
+		num_inited++;
+	}
+
+	if (num_inited == 0)
+		return -1;
 
 	return 0;
 }
diff --git a/Quake/net_main.c b/Quake/net_main.c
index 813bcb0f..510cabc4 100644
--- a/Quake/net_main.c
+++ b/Quake/net_main.c
@@ -726,7 +726,6 @@ void NET_Init (void)
 		i = COM_CheckParm ("-udpport");
 	if (!i)
 		i = COM_CheckParm ("-ipxport");
-
 	if (i)
 	{
 		if (i < com_argc-1)
@@ -772,16 +771,20 @@ void NET_Init (void)
 	Cmd_AddCommand ("port", NET_Port_f);
 
 	// initialize all the drivers
-	for (net_driverlevel=0 ; net_driverlevel<net_numdrivers ; net_driverlevel++)
-		{
+	for (i = net_driverlevel = 0; net_driverlevel < net_numdrivers; net_driverlevel++)
+	{
 		controlSocket = net_drivers[net_driverlevel].Init();
 		if (controlSocket == -1)
 			continue;
+		i++;
 		net_drivers[net_driverlevel].initialized = true;
 		net_drivers[net_driverlevel].controlSock = controlSocket;
 		if (listening)
 			net_drivers[net_driverlevel].Listen (true);
-		}
+	}
+
+	if (i == 0 && cls.state == ca_dedicated)
+		Sys_Error("Network not available!");
 
 	if (*my_ipx_address)
 		Con_DPrintf("IPX address %s\n", my_ipx_address);