Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I have added a D-Link PowerLine AV Wireless N Extender (DHP-W306AV) to my existing power line network.

The router is added as and can be accessed both from my main PC (using the power line LAN) as well as a netbook that uses the wireless network (called home1) configured on the D-Link device.

The problem is that the netbook cannot access the internet via home1. The error message (when asking to Diagnose the issue) is: 'The default gateway is not available'.

It appears that something is misconfigured in the D-Link device (acting as router/gateway for the home1 wireless network).

EDIT: In the LAN setup page is specified the following:

   My LAN Connection is: Static IP     (the other option is DHCP)
             IP Address:
            Subnet Mask: (same as main network)
        Gateway Address:   (DSL Modem and DHCP host)

I don't see any option to disable the NAT nor any way to create a different subnet (or do I simply change the mask?).

Any suggestions on how to debug and resolve this issue?

share|improve this question
I take back my previous Answer. It looks like your device is just a bridge, not a NAT gateway, so it wasn't the problem I thought it was (same subnet on both sides of a NAT gateway). –  Spiff Aug 16 '11 at 21:04
When I change the Subnet Mask to it seems to work, but then when I turn the device off and on again it keeps the setting, but the internet connection is again missing. –  Philipp Schmid Aug 16 '11 at 21:47
add comment

migrated from serverfault.com Aug 16 '11 at 1:44

This question came from our site for professional system and network administrators.

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.