Default settings of the LANCOM 1781A

Here you can find the default IP address and the predefined access data for the user interface of the 1781A VPN ADSL2+ Modem router of LANCOM. In the bottom part of this website, you will find a manual for accessing the user interface of this router and resetting its factory settings.

Login data for the user interface

IP address:: 172.23.56.254
Username:: <blank>
Password:: <blank>

Access to the user interface

Accessing the user interface is necessary when you want to change the router configuration. For the LANCOM 1781A, you have to do the following steps for access:

Switch on router
Establish a connection between the device and the router via network cable
Start web browser
Insert IP address into the address bar and confirm with ‘Enter’ key
Enter password in the open user interface and confirm again

Reset default settings

Resetting default settings is especially helpful when you have changed and forgotten the login data for the user interface. Please consider that not only will settings like IP address, username and password be set to factory settings, but all configurations you may have made will as well.

Execute hardware reset

To reset the LANCOM 1781A to its default settings, you have to do the following steps:

Put router into operation
Press the RESET button until all of the router’s LEDs flash
Device restarts automatically
Restoration of standard settings is finished

Execute software reset

With the LANCOM 1781A, you can restore the factory settings with the installed software. Log in to the user interface of the router with your access data and execute the steps that are described in the user handbook.

After you have successfully executed the steps mentioned above, the configuration of the router will be reset to factory settings. If you want to log in to the user interface, you have to use the preset login data.