Windows 11
Find the setting, record its current value, and understand the next check.
Network settings
Collect the current connection details before editing settings.
Troubleshooting tools
Use an observation to choose a focused check.
Updates
Keep the timing of an update separate from a confirmed cause.
Related guides & tools
| ID | Title | Summary | Status |
|---|---|---|---|
| A-a7e0395c | Receive and Transmit Buffers: What Value to Use? | What Receive Buffers and Transmit Buffers mean on Windows 11, why driver units and defaults matter, and how to compare and undo one setting change. | Published |
| A-10e54680 | Speed & Duplex in Windows 11: Auto or a Fixed Value? | What Speed & Duplex controls in Windows 11, why Auto Negotiation is usually right, how fixed settings must match the port, and how to undo a change. | Published |
| A-e623303c | Public or Private Network in Windows 11: Which Should You Use? | Choose Public or Private for a Windows 11 connection by checking trust and local sharing needs. Keep firewall rules, discovery and permissions separate. | Published |
| A-0b3e40d0 | Random Hardware Addresses: On or Off for Windows 11 Wi-Fi? | Choose random hardware addresses for Windows 11 Wi-Fi by checking privacy needs, per-network settings and any device registration or router reservation. | Published |
| A-76dec07c | Wi-Fi Throughput Booster: On or Off in Windows 11? | Understand Intel Wi-Fi Throughput Booster in Windows 11. Compare a sustained upload and other devices before keeping a change to packet bursting. | Published |
| A-f6ef9b41 | Wi-Fi Channel Width: Auto or 20 MHz in Windows 11? | Choose Auto or 20 MHz Only for Windows 11 Wi-Fi. Separate the adapter setting from router width and compare compatibility without changing several settings. | Published |
| A-9a1fcf0e | Receive Segment Coalescing: On or Off in Windows 11? | Check RSC enabled and operational states separately in Windows 11. Read adapter and global settings, then interpret receive counters before testing a change. | Published |
| A-5d54dd0d | U-APSD Support: On or Off for Windows 11 Wi-Fi? | Understand U-APSD Support in Windows 11 Wi-Fi. Separate the client setting, access point support and active-session evidence before comparing one change. | Published |
| A-149171d0 | ARP and NS Offload: On or Off for Windows 11 Sleep? | Learn how ARP and NS offload handle IPv4 and IPv6 neighbor requests during low-power operation. Separate offload from wake settings before testing one change. | Published |
| A-01c062f8 | Priority & VLAN: On or Off for a Windows 11 Ethernet Adapter? | Understand Priority & VLAN tagging, distinguish it from VLAN membership, and check Windows 11 driver support before changing an Ethernet adapter's original setting. | Published |
| A-813c80c3 | MIMO Power Save Mode: Auto, Dynamic, Static, or No SMPS? | Compare Auto, Dynamic, Static and No SMPS on supported Wi-Fi adapters. Check OEM guidance, record the original value and test reception before keeping a change. | Published |
| A-c3090b9b | Wi-Fi Transmit Power: Highest or Lower on Windows 11? | Choose Highest or a lower Wi-Fi transmit power using a repeatable location test. Separate the PC signal setting from router coverage and restore the original if needed. | Published |
| A-e3a6a33f | Wi-Fi Preferred Band: No Preference or Prefer 5 GHz? | Choose No Preference or Prefer 5 GHz on supported Wi-Fi adapters, then check the connected band. Separate the saved setting from the actual Windows 11 connection. | Published |
| A-9a1d4e2e | Ethernet Flow Control: On, Off, or Rx/Tx Enabled? | Understand Ethernet Flow Control Rx/Tx settings, check Dell dock exceptions, and compare one change while preserving the original Windows 11 adapter value. | Published |
| A-12fdd888 | Wi-Fi Roaming Aggressiveness: Medium, Lowest, or Highest? | Start with the supported Intel baseline, then compare one setting on the same route. Separate roaming scans, access-point changes, and application interruptions. | Published |
| A-5962fad7 | TCP and UDP Checksum Offload: On or Off in Windows 11? | Read individual IPv4, TCP, UDP and Rx/Tx offload settings. Plan a controlled comparison and restore mixed starting values without treating a capture warning as a fault. | Published |
| A-e8babc91 | Wireshark Incorrect TCP Checksums: Check Offloading First | Separate local checksum-offload artifacts from a real network fault. Check traffic direction, partial checksums, and what Wireshark validation proves. | Published |
| A-729a1b29 | Large Send Offload v2: On or Off in Windows 11? | Read IPv4 and IPv6 LSO states before changing an adapter. Understand TCP segmentation, MTU limits, and how to preserve a mixed starting configuration. | Published |
| A-7575dacc | Jumbo Frames in Windows 11: Check MTU Before Enabling | Keep Jumbo Frames off until the LAN path supports them. Compare the NIC setting, Windows IP MTU and IPv4 probe size before changing a NAS connection. | Published |
| A-38925ce3 | Receive Side Scaling: On or Off in Windows 11? | Read the actual RSS state, distinguish receive queues from CPU limits, and preserve your adapter settings before comparing a change on Windows 11. | Published |
| A-75689403 | Interrupt Moderation: On or Off on Windows 11? | Understand the CPU trade-off, separate Interrupt Moderation from the Rate control, and compare one setting without promising a lower gaming ping. | Published |
| A-33010071 | Energy Efficient Ethernet: On or Off in Windows 11? | Check what Energy Efficient Ethernet does, when a one-setting comparison is justified, and how to restore the value you recorded before changing it. | Published |
| A-926e9cad | Windows Could Not Detect Proxy Settings in Windows 11 | Check which proxy setup a Windows warning refers to, compare affected apps, and identify a saved script or local proxy before resetting your network. | Published |
| A-471f3d47 | Mapped Network Drive Missing After Restart in Windows 11 | Find out whether a mapped drive was forgotten, is waiting for access, or belongs to another session. Check the share before recreating the drive letter. | Published |
| A-c8534591 | Ethernet Keeps Disconnecting in Windows 11: Catch the Drop First | Ethernet drops for seconds, then reconnects? Compare link status, port lights, dock devices and gateway access before changing drivers or settings. | Published |
| A-8c1e25c5 | Enter Network Credentials in Windows 11: Which Account to Use | Shared folder asks for network credentials? Identify the remote PC or NAS account, check saved entries and sessions, and keep SMB protections enabled. | Published |
| A-916259a0 | Microsoft Whiteboard Windows App Retired: Where Your Boards Are | Whiteboard's Windows app retired October 16, 2026. Find work or school boards on the web or in Teams; understand personal and legacy Azure limits. | Published |
| A-6b6b1ef4 | Always On VPN Stuck Connecting After KB5124008: Check the October Fix | Always On VPN stuck Connecting or says the port is already in use after KB5124008? Check the October Windows fix, affected profiles, and retest steps. | Published |
| A-f72cb4fd | Smart App Control Grayed Out After KB5127648: Check Microsoft's Fix | Smart App Control On is grayed out after KB5127648? Check Microsoft's Windows 11 known issue, its two mitigation paths, and other Off-state causes first. | Published |
| A-8ce71495 | Enterprise Wi-Fi Fails After KB5127648: Check MS-CHAPv2 SSO | Enterprise Wi-Fi, Ethernet or VPN SSO fails after KB5127648? Check Credential Guard, BlockNtlmv1SSO and NTLM events 4024/4025 before changing policy. | Published |
| A-7426c7bb | AVD Black Screen After Sign-In: Check the October 2026 Windows Fix | AVD/FSLogix users may see a black screen after sign-in when Explorer fails. Check which October 2026 Windows update fixes this specific host-side issue. | Published |
| A-85607e23 | Windows 11 24H2 Home and Pro: What End of Updates Means | Windows 11 24H2 Home and Pro got their last monthly security update in October 2026. Check your edition, update path, and how to verify the new version. | Published |
| A-70220f1a | Remote Desktop Error 0xC000000D on Windows 11 | Check Microsoft’s October 2026 notice: non-admin RDP users can fail to connect to Windows 11 hosts with Administrator protection. Confirm the scope first. | Published |
| A-a44d8d3d | What Does Link Speed Mean in Windows 11? | Understand Windows 11 link speed, 1000/1000 Mbps and the Aggregated label. Read receive/transmit values and see why they differ from internet speed. | Published |
| A-6501e7f4 | Windows 11 Mobile Hotspot Connected but No Internet | Devices join your Windows 11 PC hotspot but have no internet? Compare the sharing PC, selected source, and two clients before changing drivers or resetting networking. | Published |
| A-77c96f25 | What IPv6 “No Network Access” Means in Windows 11 | IPv6 says No network access on Windows 11? Compare IPv4, the service you need, and read-only status results before deciding whether anything needs repair. | Published |
| A-5d1b1975 | NAS or PC Not Showing in Windows 11 File Explorer Network | NAS or PC missing from File Explorer Network? Test a known shared folder first, then separate discovery, connection, and account problems on Windows 11. | Published |
| A-2e57bb01 | Login Hotel Windows: Open the Missing Wi-Fi Sign-In Page | Try the hotel's verified portal or Microsoft's HTTP redirect to reveal Wi-Fi sign-in. If it still fails, match the returned page before changing settings. | Published |
| A-83e93754 | Windows 11 Blocks Unauthenticated Guest Access to a NAS | Windows 11 won't open a NAS share? Confirm guest authentication and SMB signing, use a named NAS account, and check the exact failure before changing policy. | Published |
| A-ca58114a | Microsoft LLDP Protocol Driver On or Off? Adapter Bindings | Turning off LLDP is not an established gaming optimization. Check Multiplexor and other Windows adapter bindings, and keep your known working settings. | Published |
| A-6d869c31 | Install Windows 11 Without Internet: What Still Works | Windows 11 Home and Pro setup expects internet and a Microsoft account. Check missing drivers, local-account options, and the limits of older bypass commands. | Published |
| A-57ff2645 | USB4 Device Functionality Might Be Limited in Windows 11 | Trace the PC port, cable, and dock behind Windows 11's USB4 warning. Use USB4 settings and a direct connection to narrow the compatibility gap. | Published |
| A-fbbc5d2e | Slow Charger Warning on USB-C in Windows 11 | Compare direct and dock charging, check charger and cable specifications, and identify model-specific limits behind Windows 11's Slow charger warning. | Published |
| A-f1f32e4d | Windows 11 PC Wakes Immediately After Sleep | Use powercfg to separate a device wake, wake timer, and request that prevented sleep before disabling anything in Windows 11. | Published |
| A-c262089b | Bluetooth Missing from Settings and Device Manager in Windows 11 | Separate a missing Bluetooth button from a missing adapter, then check hardware support, Device Manager, services, and the correct PC-maker driver. | Published |
| A-ac0cc4ad | 5 GHz Wi-Fi Not Showing in Windows 11 | Check shared network names, the connected band, router broadcasting, and a second compatible device before changing a Windows 11 Wi-Fi driver. | Published |
| A-2f12445a | Cannot Connect to This Network with the Correct Password | Separate a failed Wi-Fi join from no internet, replace only the affected saved profile, and check security compatibility before a Windows 11 network reset. | Published |
| A-5311e1bd | Windows 11 26H2 Is Not Showing in Windows Update | Check your installed version and exact Windows Update message, then separate the phased 26H2 rollout from a compatibility hold or an installation error. | Published |
| A-55dd47b6 | Defender Says It Is Turned Off but Protection Looks Active | Compare a Defender off notification with the active antivirus provider, read-only status, and product version before treating the warning as a reporting bug. | Published |
| A-5130348c | AC-3 Apps Crash After the September 2026 Windows Update | Match AC-3 playback crashes to the September 22 Windows update, separate missing codec support from the regression, and collect a useful comparison record. | Published |
| A-7aff4027 | Ethernet Port Has No Lights on a Windows PC | Check model-specific Ethernet LED meanings, compare a working cable and LAN port, and distinguish a missing link from Windows adapter or IP problems. | Published |
| A-64757bd7 | USB-C Dock Keeps Disconnecting Drives and Monitors | Separate whole-dock dropouts from display-only failures in Windows 11, protect external-drive data, and compare dock power, host cable, and device load. | Published |
| A-58e615c1 | File History Says Reconnect Your Drive in Windows 11 | Check the September 2026 File History fixes by Windows version, preserve existing backups, and verify recovery when Reconnect your drive keeps appearing. | Published |
| A-e3689973 | Wi-Fi Adapter Detected but No Networks Found in Windows 11 | Compare an empty Wi-Fi list with one missing network in Windows 11. Check radio state, WLAN service, filters, and diagnostic permission errors. | Published |
| A-a0cd6718 | USB Device Descriptor Request Failed in Windows 11 | Identify the USB connection behind a descriptor request failure, compare cable and port paths, and preserve keyboard and mouse access before changing drivers. | Published |
| A-07dd68df | SSD Shows in Device Manager but Not Disk Management | Don't initialize or format yet. First check whether Storage Spaces has claimed the SSD and whether it holds data, then compare Windows storage views. | Published |
| A-c4b589b2 | USB-C Monitor Only Works After Replugging in Windows 11 | If a USB-C monitor appears only after replugging, compare cold boot, restart, wake, direct connection, dock, cable, firmware, and Windows detection. | Published |
| A-03c26d93 | Network Adapter Missing After Windows 11 Update? What to Do | Wi-Fi or Ethernet adapter gone after a Windows 11 update? Check hidden devices and the error code, and save the OEM driver offline before rolling back. | Published |
| A-0ab9ea2f | Ping Works by IP but Not Domain? Check DNS in Windows 11 | Check the configured DNS server with nslookup, then separate a timeout, missing name and app-only failure. Keep VPN and private DNS requirements in view. | Published |
| A-4041ab01 | Intel Wi-Fi Code 10 in Windows 11: A Driver and Power-Failure Checklist | For Intel Wi-Fi Code 10 in Windows 11, record the full status, save the OEM driver, restart safely, reinstall OEM-first, and verify the device. | Published |
| A-8e2b8afe | What Network Reset Removes in Windows 11—and What to Save First | Before a Windows 11 Network reset, record adapters, IP and DNS settings, VPNs, virtual switches, Wi-Fi access, and an offline recovery driver. | Published |
| A-c3099a28 | Install Network Drivers on Windows 11 Without Internet | No internet to get a Wi-Fi or Ethernet driver? Download it for your exact PC model on another device, copy it by USB, then install it in Device Manager. | Published |
| A-ea42eebf | Wi-Fi Report in Windows 11: Find the Disconnect Reason | Run netsh wlan show wlanreport, match the disconnect time to a session and reason, then compare adapter and driver details. Redact private data before sharing. | Published |
| A-c3296cd3 | Windows 11 Says No Internet but It Works? Check NCSI | If Windows 11 shows No internet while websites load, the NCSI connectivity probe may be blocked. Check VPN, proxy, DNS, and captive portal first. | Published |
| A-e37c317c | Ethernet Not Working but Wi-Fi Works in Windows 11: Compare the Two Paths | If Ethernet is not working but Wi-Fi works in Windows 11, compare link state, IP address, gateway, cable, port, adapter, and driver in order. | Published |
| A-b3357ad3 | Wi-Fi Option Missing in Windows 11: Find the Adapter State First | If the Wi-Fi option is missing in Windows 11, identify whether the wireless adapter is enabled, disabled, showing an error, or absent before resetting. | Published |
| A-bb2d69b0 | Wi-Fi and Ethernet Both Not Working? Windows 11 First Checks | Both connections down on one Windows 11 PC? Test another device on the same router first, then IP, gateway, VPN, and dock before you use Network reset. | Published |
| A-ef15aee7 | Ethernet Not Working After Sleep in Windows 11 | Check the adapter, cable link, IP address and DNS after Windows 11 wakes from sleep, with separate paths for built-in Ethernet and USB C docks. | Published |
| A-876bb641 | Wi-Fi Missing After Sleep in Windows 11? Check Adapter State | Check whether the Wi-Fi adapter disappears after wake, then follow its Device Manager state, driver and power clues before resetting Windows networking. | Published |
| A-abbf2ea9 | USB Audio Code 10 After Sept 2026 Update: KB5129195/KB5129194 | USB audio device shows Code 10 after the Sept 8, 2026 update? KB5129195 (24H2/25H2) or KB5129194 (26H1) fixes only part of it. Check what still applies. | Published |
| A-d4bd0a34 | 169.254 IP Address on Windows 11 Ethernet | Windows 11 Ethernet showing a 169.254 IP address? Identify the active adapter, confirm DHCP, and compare the cable, LAN port, and router before resetting. | Published |
| A001 | Ethernet Capped at 100 Mbps on Windows 11 | Ethernet capped at 100 Mbps on Windows 11? Check link speed, compare cables and LAN ports, and verify Auto Negotiation before replacing hardware. | Published |