If your internet is functioning on all devices perfectly fine except for one PC on your network there could be a number of possible reasons. In this post I will explore possible solutions to this issue. Hopefully one of these solutions will end up working for you.
These solutions can be used for either a wireless or wired connection.
Solution 1 – Windows update. If windows is downloading updates in the back ground you could experience degraded internet speed.
Solution 2 – Update your drivers. Update your motherboard, chipset and Nic drivers. By ensuring theses drivers are up to date, your hardware will run at optimal performance.
Solution 3 – Faulty network cable. Eliminate an obvious layer 2 issue and replace the network cable.
Solution 4 – Reset or reseat the network adaptor. This is definitely a very possible solution. First of all before you start taking your PC apart, simply reset your Network adaptor by finding the adaptor in the Control Panel (look under Network and Internet > Network and Sharing Centre > Change adaptor settings). You can do this Re-seat the network adaptor if there is one
Solution 5 – TCP/IP stack repair – If that doesn’t work, try running the following commands. Launch CMD.exe or PowerShell depending on your version of Windows and type (or copy and paste if you have Windows 10) these three, pressing Enter after each one.
netsh winsock reset catalog
netsh int ipv4 reset reset.log
netsh int ipv6 reset reset.log
Please feel free to comment below any further suggestions for a resolution to this common issue.