The guide library
Find a written guide or work through a check, one observation at a time.
75 items available
| 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-73f3a64c | AX210 Cannot See 6 GHz Wi-Fi on Windows 11 | Check router bands, OEM and regional support, Windows, and drivers before treating a missing AX210 6 GHz network as a driver fault. | 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 |
| T001 | Guided Ethernet check | Use the link speed Windows reports to choose your next check. | Guided check |
| T002 | Guided Wi-Fi check | Compare connection status and another device to choose a useful next check. | Guided check |
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