After your ISP modem or router reboots, your Windows 11 computer may lose IPv6 connectivity entirely. You might see a “No network access” or “IPv6 connectivity: No internet access” message in the Network & Internet status page. This happens because the modem assigns a new IPv6 prefix via DHCPv6 Prefix Delegation, but Windows 11 does … Read more
DNS over HTTPS encrypts your DNS queries to prevent eavesdropping and tampering by your internet service provider or attackers on your network. Windows 11 includes a built-in option to enable DoH for all network connections, and you can specify any custom resolver such as Cloudflare 1.1.1.1, Google Public DNS, or Quad9. By default, Windows uses … Read more
After you reset the Hyper-V Default Switch, mDNS-based discovery such as Bonjour or network device browsing may stop working on the host machine. The root cause is that the Default Switch reset changes the virtual network adapter’s MAC address and disrupts the multicast DNS cache. This article explains why the reset breaks mDNS, provides step-by-step … Read more
Your Windows 11 mobile hotspot is stuck broadcasting on the slower 2.4 GHz band, even though your primary adapter supports 5 GHz or 6 GHz. This happens because Windows 11 defaults the hotspot to the 2.4 GHz band when the Wi-Fi adapter driver does not expose the band selection feature correctly. This article explains why … Read more
You want to send only specific traffic through your VPN connection while letting everything else use your normal internet connection. This is called split tunneling. Windows 11 supports split tunneling natively, but the Settings app does not expose the configuration options. You must use PowerShell to set up which traffic goes through the VPN tunnel … Read more
Your internet stops working after uninstalling an old firewall like ZoneAlarm or Norton on Windows 11. Web pages fail to load, but other network devices work fine. This happens because the firewall installed a Layered Service Provider, or LSP, that becomes corrupted when the firewall is removed incompletely. The LSP is a DLL that intercepts … Read more
Windows 11 lets you share files and printers with other devices on your network. By default, network discovery and file sharing can be enabled on both private and public networks. This creates a security risk because public networks, such as those in coffee shops or airports, expose your shared folders to anyone connected. The solution … Read more
When you upgrade to Windows 11 or install a recent security update, you may suddenly find that your network-attached storage device no longer appears in File Explorer. You can still access the NAS by typing its IP address directly, but the device does not show up under Network. This happens because Windows 11 automatically removes … Read more
You have set up Internet Connection Sharing on your Windows 11 PC to share your wired or cellular connection with other devices, but the service refuses to start. The Internet Connection Sharing service, also called SharedAccess, fails to start with error 1068, 1058, or 5. This happens because of missing dependencies, corrupted service configuration, or … Read more
When you enable the Hyper-V role on Windows 11, the system creates a virtual switch called the Default Switch. This switch automatically assigns IP addresses to virtual machines using its own built-in DHCP server. Over time, especially after creating and deleting many VMs, the DHCP lease pool can become exhausted or fragmented. This article explains … Read more