Useful Notes

How to get a Netgear A6210 USB wifi adapter working on OpenWRT
Thethering from phone to OpenWRT
- Steps to connect once phone is paired
macOS
- Clearing Icon Cache
- Flush DNS cache

How to get a Netgear A6210 USB wifi adapter working on OpenWRT

First, set up OpenWRT as usual and make sure you have a working USB port and internet connection. Then, install the kmod-mt76x2u package.

Source: OpenWRT forum post

Thethering from phone to OpenWRT

Make sure the following packages are installed.
- kmod-input-uinput
- bluez-daemon
- bluez-utils
- dbus
- dbus-utils
  This can be done by entering the following commands:
```
 opkg update
 opkg install kmod-input-uinput bluez-daemon bluez-utils dbus dbus-utils
```
The first command (opkg update) updates the package lists so that packages can be found. This can be skipped if the package lists have been updated since last boot.
The second command (opkg install) installs the packages.
Enable bluetooth by changing AutoEnable in /etc/bluetooth/main.conf to true
```
 AutoEnable=true
```

Modify /etc/dbus-1/system.d/bluetooth.conf to add to the root policy block:

   <allow send_type="method_call" />
   <allow send_type="method_return" />

Example after modification of root policy block:

   <policy user="root">
     <allow own="org.bluez"/>
     <allow send_destination="org.bluez"/>
     <allow send_interface="org.bluez.Agent1"/>
     <allow send_interface="org.bluez.MediaEndpoint1"/>
     <allow send_interface="org.bluez.MediaPlayer1"/>
     <allow send_interface="org.bluez.Profile1"/>
     <allow send_interface="org.bluez.GattCharacteristic1"/>
     <allow send_interface="org.bluez.GattDescriptor1"/>
     <allow send_interface="org.bluez.LEAdvertisement1"/>
     <allow send_interface="org.freedesktop.DBus.ObjectManager"/>
     <allow send_interface="org.freedesktop.DBus.Properties"/>
     <allow send_type="method_call"/>
     <allow send_type="method_return"/>
   </policy>

Use bluetoothctl to pair and connect to the phone.
1. Start by logging in via SSH
2. Run bluetoothctl to enter the bluetoothctl command line
3. Wait for your phone to appear
4. Type pair XX:XX:XX:XX:XX:XX where the X’s are replaced with your phone’s MAC address shown along with your phone name
  You can use tab completion by pressing Tab while typing the address.
  If there are no other possible choices up to a certain point, this will complete up to that point,
  and if there's no other possible choices at all, you will have the complete MAC address.
  If there is ambiguity, press Tab again to see the possible choices.
5. Type trust XX:XX:XX:XX:XX:XX where the X’s are replaced with the same MAC address.

Steps to connect once phone is paired

If not logged into SSH on your router, log in.
Connect via Bluetooth with the following command:
```
 dbus-send --system --type=method_call --dest=org.bluez /org/bluez/hci0/dev_XX_XX_XX_XX_XX_XX org.bluez.Network1.Connect string:'NAP'
```
Where the XX is replaced with the digits of your phone’s MAC address you found when pairing.
If you haven’t yet, set up your router to route your internet traffic through the phone by typing these commands:
```
 uci set network.wan=interface
 uci set network.wan.proto=dhcp
 uci set network.wan.ifname='bnep0'
 uci commit
 ifup wan
```
This creates (network.wan=interface) and sets up the WAN network to use the phone's bluetooth connection (network.wan.ifname='bnep0') via DHCP (network.wan.proto=dhcp).
It then commits the changes (uci commit), and triggers the WAN interface to reload (ifup wan).

Source: OpenWRT docs (Date: 2025-10-25T19:54:33Z; Archive, 2025-07-06T13:33:56Z)

macOS

Clearing Icon Cache

sudo rm -rfv /Library/Caches/com.apple.iconservices.store
sudo find /private/var/folders/ \( -name com.apple.dock.iconcache -or -name com.apple.iconservices \) -exec rm -rfv {} \; ; sleep 3;sudo touch /Applications/* ; killall Dock; killall Finder

The errors returned are normal and don’t affect anything.

Also note that this will restart the Dock and Finder.

Flush DNS cache

From memory:

dscacheutil -flushcache
sudo killall mDNSResponder