UPDATE: This issue is now fixed, Microsoft rolled out a new patch that resolves the issue.
If you're having trouble with your Internet connection it could be that Microsoft is too blame. The Register writes a recent Windows patch is giving some users difficulty to connect to the Internet. The site reports Microsoft seems to have messed up something related to the Windows Dynamic Host Configuration Protocol (DHCP).
Windows 10 user are affected, but reports indicate Windows 7 and Windows 8.1 users are having problems too. Microsoft is still investigating the issue, the only fix at the moment consists of rebooting your PC, but this doesn't always resolve the problem. Switching to a static IP address also seems to help, but not everyone has that option.
The issue appears to stem from a specific update that has borked the Windows Dynamic Host Configuration Protocol (DHCP) client so that a LAN-side IP address, router address and DNS settings cannot be automatically obtained from the broadband router. It doesn't matter which ISP or router you have, the problem is widespread albeit intermittent so not all users experience it. We're also hearing that it affects some Windows 8.1 and 7 users, too.