Thoughts, stories and ideas.

Solving the Parasitic Battery Drain On My 2012 Volvo XC90

Recently, I got a 2012 Volvo XC90. Within the first few weeks of driving it, I came out to it and the battery was dead. A quick jump start later, and I was fine. The battery didn’t die for several more weeks. Note that this was also with me driving almost every day. When it happened the second time, I figured something was up. I started Googling and read about the RDAR module (Remote Digital Audio Receiver, provides Sirius XM for the car) would constantly look for a signal when the car was off

Using VLANs on OpenWRT

If you have ever used prosumer or enterprise networking equipment, you have probably run across a switch with “smart” capabilities or VLAN capabilities. VLANs by definition is “a virtual LAN is any broadcast domain that is partitioned and isolated in a computer network at the data link layer.” VLANs allow for multiple networks and subnets to be carried across one physical network link. Things You Will Need: * An OpenWRT Device supporting VLANs (see here for more info) set as a DHCP client on

Enabling 802.11r (Fast Roaming/Transition) on OpenWRT

802.11r, also known as Fast Roaming/Transition on OpenWRT allows clients to seamlessly switch between several access points depending on which one is closer to the client. This is great for locations with more than one access point as a client does not have to drop a connection to rescan for APs, but can instead switch between, dropping minimal packets and remaining secure. In this guide, you will learn how to enable fast roaming on OpenWRT. Installing WPAD wpad is a full-featured IEEE 802.1x