When other devices are able to access the Internet through your WiFi, the problem lies with your device and its WiFi adapter. As a first step, restart your device and see if that fixes the problem. As with the router, network and software problems often get fixed automatically with a simple restart. If that doesn’t fix your problem, here’s what you can do.
Right-click on the network icon in your task tray at the bottom right-hand corner. Click on “troubleshoot problems”
Windows will attempt to automatically diagnose the problem and will try to fix it for you.
If Windows is unable to fix your problem, it will in some cases tell you what the problem is.
You can search for a solution to this problem online or you can ask experts.
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If your speed test confirms your internet is slow, you should try connecting to multiple websites and using multiple devices in your home if your Internet connection is slow. If the slowness is just with one website, it’s probably that website’s problem—not your internet’s. There’s not really anything you can do about this except wait for the people in charge of the website to fix it. Narrowing down where the problem lies will help you fix it. Does the slowness just happen on one computer or all your devices? If it’s just one computer, you know the solution probably lies there. You may just have to reboot the computer, or you may need to perform a malware scan to check that everything is fine. If the slowness happens on multiple devices—multiple computers, for example, or your computer and your phone—then it’s almost certainly a network problem, and you’ll have to go to your router. regards -
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