How to put your DMK Box into Infrastructure Mode

Putting the DMK 11A into Infrastructure Mode

The DMK Box can be configured to either send data in a pier to pier mode (Ad-Hoc) or broadcast through an existing onboard router or hotspot. (Infrastructure Mode) Infrastructure Mode is useful if there already exists a WiFi Network onboard or if a user wishes to connect devices that do not easily make Ad-Hoc connections like Android devices.

There are two main ways of configuring a DMK Box for infrastructure mode. One way is to have the DHCP Server assign the box an IP Address and the other is to manually assign the address. In most cases using the DHCP setting works well however in certain cases with some brands or routers the box must be manually configured in order to work. These instructions will cover both cases. When configuring the box for infrastructure mode, try the DHCP method first. If that does not work, reset the box and configure the IP manually.

Part 1.
Putting the DMK 11A in Infrastructure mode using the DHCP setting.
Step 1: Using the DMK App create a new WiFi Profile in which to customize and save your Wifi settings. On the left most page in the app, (Instrument List for the iPhone, Packet Log for the iPad) tap the Settings/Configuration button. On the top of the next menu will be the WiFi Profiles button. Tap the WiFi Profiles button to get to the WiFi Profiles page. Once on the page, tap “Create a New Profile.”

Step 2: Configure the new profile.
Open the new profile and give it a name. Under Wi-Fi Mode, select Infrastructure. Select the security setting of the router or hotspot you intend to broadcast through. Your choices are Open/WEP/WPA/WPA2. Enter the SSID (network name) of the router the box will connect with. Enter the security code (WEP Code or PSK) of the router. Under DMK Box Connection Mode, select DHCP and under Auto-Detect IP of DMK Box, select Detect

Step 3: Apply the profile to the DMK box.
Tap Apply the Profile button at the bottom of the page and it will reprogram the DMK Box. The app will prompt you to confirm the command. Once it is confirmed the page will move to a check list verifying the reprogramming. If all goes well then the list will check through green and the app will start a countdown while the box reboots.

At this point you will no longer see the dmkyacht SSID under WiFi Networks. Instead the data should be available to any device connected to the router or hotspot that the DMK 11A has been configured to broadcast through. Any app configured to listen to port 1703 and connected to that router or hotspot should see data from the DMK Box on that network. The green LED inside the

In most cases the above procedure works however sometimes the box does not receive an address from the network’s DHCP server. In these cases data will not be broadcast through the network and the DMK Box must be manually assigned its IP Address. Before you can reprogram the box again it must get a hard reboot to put it back into factory default mode. A hard reboot is done by connecting the Seatalk and ground wires and power cycling the box. All the LEDs inside the box will blink 8 times letting you know it has been reset. The procedure is also outlined in Section 4.2 of the owner’s manual.

Part 2.
Putting the DMK 11A in Infrastructure mode using Manual IP Address Setting
Overview: In certain cases using the DHCP mode for the DMK Box may not result in an address being assigned and the box broadcasting through the router. In these cases the IP address must be assigned manually.

Step One: Figure out a valid IP Address to assign the DMK Box.
A valid address will have to be in the correct Subnet and is best set outside the DHCP range of addresses. To figure out these settings open the router’s administration page. The router’s User’s Manual should give you instructions for how to access the Administration Page. The address you use in the web browser to access the Administration Page will be the value you set in the Router field of your WiFi Profile during Step 2.

Inside the Administration Page open the client list and look at the IP addresses that have been assigned any devices connected to the router. Note the address range and subnet. Figure 1 is an example of a typical IP Address.

Figure 1

A typical DHCP address range for a router is around 100. If the router assigned an address like in Figure 1, then giving the DMK Box an IP address of would most likely be valid and outside the DHCP range.

Step 2: Manually configure the WiFi Profile.
Set up the DMK Box with the following configuration.
Firmware Revision – 6 or Higher Wi-Fi Mode – Infrastructure Security (Open/WEP/WPA/WPA2) – select the security setting the router is configured to.
SSID – the network name of the router you wish to stream through
WEP Code/PSK – the security code of the router DMK Box Connection Mode – Manual Auto-Detect IP of DMK Box – Manual IP Address – Assign the DMK Box an IP address with a valid subnet and outside the DHCP Range.
Subnet Mask – Router – Use the IP address that gave you access to the administration page. Always-On Endpoint Count – 1 Endpoint Socket –

Step 3. Apply the profile to the DMK Box. First tap the “This is the Active Profile” button in the DMK App, then tap the “Apply this Profile” button and confirm.

The app will now give a status on reprogramming the box. If all went well then it will give green check offs as it reprograms. When the box resets it will connect to the router and steam through it. To access the instrument information it is now necessary to connect to the new router.

If the reprogramming did not give all green checks in its status and did not reprogram then the most likely cause is a bad connection between the mobile device and the DMK Box. Make sure you don’t have two apps fighting over a port connection or two devices fighting over an IP Address. Force quit other apps that might be using the boat’s data and make sure all devices onboard are each set to listen to a unique IP. If all else fails, email sales@dmkyacht or call the phone number on the side of the box for technical assistance.