fixing client issues for uspace, fwmark, vpn

scripts/netclient.sh

@@ -1,4 +1,5 @@
 #!/bin/sh
+
 echo "[netclient] joining network"
 
 if [ -z "${SLEEP}" ]; then
@@ -11,6 +12,7 @@ if [ "$TOKEN" != "" ]; then
 fi
 
 /root/netclient join $TOKEN_CMD -daemon off -dnson no
+if [ $? -ne 0 ]; then { echo "Failed to join, quitting." ; exit 1; } fi
 
 echo "[netclient] Starting netclient checkin"
 # loop and call checkin -n all