The default gateway is not available

Hi Kristians,

Thank you for posting in Microsoft Community. I understand your concern and I am glad to assist you.

You may follow the steps given below in order to resolve this problem:

1. Log on to the computer using the administrator account.

2. From the Start screen that appears, click the Desktop tile.

3. Once on the desktop screen, click the File Explorer icon from the taskbar.

4. On the opened This PC window, right-click This PC from the navigation bar in the left.

5. From the displayed context menu, click Manage.

6. On the opened Computer Management sap-in, from the left pane, click to select Device Manager.

7. From the right pane, expand the Network Adapters tree.

8. From the displayed list, right-click the network adapter that you are using to connect to the network/Internet and are facing trouble.

9. From the context menu that appears, click Properties

10. On the opened NIC’s properties box, go to the Power Management tab.
    From the displayed interface, uncheck the Allow the computer to turn off this device to save power checkbox

11. Once done, click OK to save the changes that you have made.
    Close the Computer Management snap-in.

12. Finally restart the computer to allow the changes to take effect.

Hope this post is helpful. Get back to us with the results. We are happy to help!

Hi, Joy!

Thanks for your advice, but unfortunately, it didn't help at all, the problem is still here. :(

I have EXACTLY the same issue every 5-10 minutes (I'm pretty sure before I submit this post, I have to "troubleshoot" to reconnect).

It started 1.5 days ago, and I'm almost certain it's due to the last Windows update on my PC (8.1).

It is not a problem with my router or the internet provider because my phone or tablet doesn't have the problem while my PC suffers.

Please tell me (us) the way to get out of this nightmare.

Update from me.

I suffered the same issue for 2 months, and now I solved the problem.

I tried everything I could find online (ipconfig..., netsh..., , changing the power management thingy, and updating a network driver, etc.), and one thing worked for me.

Uninstall McAfee!!

I still have 1.5 years of its subscription left, but it's not worth it.  I already installed another antivirus software, and my wifi is working without the problem for more than 24 hrs (I used to have the problem every 15min-1hr).

I asked for help to the McAfee technical service, but their advice was completely useless (scanning PC, updating McAfee, etc. which I already did for the first day that I encountered the issue).

So if you are a McAfee user and can't solve the problem, get rid of McAfee from your PC and see what it happens.