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Asked: 2024-09-24T21:30:52+05:30 In:

What steps should I follow to extend my DHCP lease on Ubuntu?

So, I’ve been having a bit of trouble with my internet connection on Ubuntu lately, and I’m pretty sure it has something to do with my DHCP lease getting close to expiring. I’ve done some digging, but I’m still a bit lost on what the right steps are to extend my DHCP lease properly.

Basically, what’s happening is that I keep getting disconnected at random times, and when I check my network settings, it looks like my IP address has remained the same for a while, but I’m worried about it running out. I’ve heard that renewing the lease can potentially help stabilize my connection, but I’m not a pro at dealing with network settings, and I really don’t want to mess anything up.

So, here’s where I hope you guys can help me out. What exactly do I need to do to extend my DHCP lease on Ubuntu? I’ve seen some advice suggesting to use terminal commands, but I’m a bit hesitant since I don’t always understand what each command actually does. Should I just go with the ones I find, or is there something specific I should be cautious about?

Also, if I extend my lease, will it affect my network settings in any way? Like, will my devices reconnect automatically, or do I need to do some manual reset to get things back online? Oh, and one more thing—if there’s a difference between command line and using the graphical interface for this sort of thing, I’d love to know!

I’m sure there are a few folks out there who’ve dealt with this before. Any guidance would be super appreciated! Just want to make sure I’m doing it right without bricking my network in the process. Thanks in advance for the help!

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    2 Answers



    1. Extend DHCP Lease on Ubuntu

      How to Extend Your DHCP Lease on Ubuntu

      If you’re having issues with your internet connection on Ubuntu and think the DHCP lease might be causing disconnections, here’s a simple way to renew it. Don’t worry; I’ll try to break it down step by step.

      Using the Terminal

      One of the easiest ways to renew your DHCP lease is through the terminal. Don’t panic; I’ll explain what to do!

      1. Open the Terminal: You can do this by searching for “Terminal” in your applications menu or by pressing Ctrl + Alt + T.
      2. Release the Current Lease: Type this command and hit Enter:

        sudo dhclient -r

        This command tells your computer to stop using the current IP address.

      3. Renew the Lease: Now type this command and hit Enter:

        sudo dhclient

        This requests a new IP address from the DHCP server.

      You might be asked for your password when you run these commands. Just type it in (you won’t see it as you type) and hit Enter.

      Using the Graphical Interface

      If you’re not comfortable with the terminal, you can try using the graphical interface:

      1. Go to Settings on your system.
      2. Click on Network.
      3. Select your network connection and click on the ⚙️ icon (gear icon).
      4. Under the IPv4 tab, you can switch to “Manual” or just disconnect and reconnect your network to renew the lease.

      Will Renewing the Lease Affect My Network Settings?

      When you renew your DHCP lease, it usually won’t mess with your network settings too much. Your device should reconnect automatically without any need for a manual reset. Just make sure that the router and your computer are configured to use DHCP.

      Final Tips

      If you’re unsure about any commands, it’s a good idea to look them up before you run them. Understanding what they do can help calm those nerves. Also, consider checking your router’s settings if issues persist, as sometimes the router itself could need a restart.

      Hopefully, this helps! Don’t worry too much about the commands; just follow along, and you should be good. Good luck!


    2. To extend your DHCP lease on Ubuntu, you can either use the terminal or the graphical user interface. The terminal approach is often quicker and more efficient. Open a terminal and enter the command sudo dhclient -r to release your current DHCP lease. This command tells your system to drop the assigned IP address. After that, run sudo dhclient to request a new lease from your DHCP server. This process should renew your lease and help stabilize your connection. Be cautious while using terminal commands; however, these commands are generally safe and only affect your network interface. It’s also beneficial to ensure your network manager service is active; you can check it with systemctl status NetworkManager.

      If you prefer a graphical interface, you can go to your network settings by clicking on the network icon in the system tray and selecting “Settings.” Under the “Wired” or “Wireless” tab, select your active connection and look for an option related to IPv4 settings. You can set it to automatically obtain an IP address through DHCP if it isn’t already. After applying these settings, your devices should reconnect without the need for additional manual resets. The main difference between the command line and GUI methods is that the command line can provide more granular control and immediate feedback. Either method you use, renewing your DHCP lease should not disrupt your network significantly, and devices should reconnect automatically without needing further intervention.

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