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Recently we brought raspberry pi 3b.Beginning we used to access the internet using an ethernet cable and it used to connect properly but now raspberry pi is not able to reach the gateway itself and it's taking its default IP address i.e 169.xxx.xxx.xx. what would be the issue?we tried to reinstalling the operating system again the same issue .it worked for one day after that same problem.so please help me to solve the issue.

Vishalkumar Uppin
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2 Answers2

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Assuming that you have a windows computer available, open cmd and run the following command:

ipconfig

note down the values that display. Now on your pi, enter the command

sudo nano /etc/network/interfaces

This will open the network interfaces file. Look for the line similar to 'inet eth0 inet manual' Then remove this line and everything to do with the eth0 interface, since we are going to start over.

in the interfaces file, add the following section:

auto eth0
inet eth0 inet static
       address xxx.xxx.xxx.xxx
       network 255.255.255.0
       gateway xxx.xxx.xxx.xxx
       dns-nameservers 8.8.8.8

Replace the x in address with the first 3 groups of the value taken from the windows system. For example, if the ip address on the windows system was 192.168.0.221, enter 192.168.0.xxx

The last group of xxx for address should be something unique to everything else on your network.

'gateway' should be whatever the gateway value in windows was (assuming these machines are on the same network)

[Ctrl]+[x], Save changes

reboot via

sudo reboot

once the system has rebooted

ifconfig eth0

should list the new settings. Test them by pinging the below address (google)

sudo ping 8.8.8.8
Harvey Fletcher
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Finally, I am able to figure it out after trial and error method. I have missed "auto eth0" before the iface statement i.e

auto eth0

iface eth0 inet static

address xxx.xxx.xxx.xxx

network 255.255.255.0

gateway xxx.xxx.xxx.xxx

dns-nameservers 8.8.8.8

Vishalkumar Uppin
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