769 Error - A simple error.
This error has resulted in most of the cases was mainly due to network card getting disabled. Re-enabling the network adaptor has recovered the problem. To do the same, click on START button, Click on Run and type sysdm.cpl and click OK. Click on the tab "Hardware" in the resulting system properties window and then click on Device Manager button. Check for the network adapters to see a red mark to the left side of the network card name. Just Right Click on the same and click Enable. That is all.
The same can also be done by clicking on START>Settings>Network Connections>Local Area Connection for Classic Setup and Start>Connect To>Show All Connections and double clicking on Local Area Connection. In both the cases you would see a small window flashing up saying Enabling.
In case no local area network entry is found in the window, there is a possibility that the card is not recognised by the operating system and needs to be installed manually and the serviceability of the same to be checked as mentioned below:-
It can be confirmed by pinging the router at 192.168.1.1 from the PC. For Type I, Type II models by default the DHCP on the router is disabled. Hence the LAN card is to be assigned an IP Address 192.168.1.10 with subnet mask as 255.255.255.0 and the gateway as 192.168.1.1 and then the ping test is to be carried out.. For Type III and Type IV models the DHCP on the router is enabled by default and hence the LAN card should be required to be put to "Obtain IP address automatically" before pinging. If the ping fails, the issue is with the LAN card only. Either the drivers or LAN card is the culprit in the issue. The command for pinging the router is "ping 192.168.1.1" from the command prompt.
In a couple of cases, where the system has on board LAN card, it was observed that the LAN Card Entry in the system BIOS settings was disabled. The customer is suggested not to try changing the settings without prior knowledge in BIOS.