Network & Connectivity

0X000020F1

ERROR_DS_REFUSING_FSMO_ROLES (0X000020F1) Fix

This error means your domain controller is rejecting FSMO role seizure attempts, often after a faile...

Advanced 👁 43 May 28, 2026

0X80094013

Fix CERTSRV_E_DOWNLEVEL_DC_SSL_OR_UPGRADE (0X80094013)

This error pops up when an older domain controller can't get a certificate over HTTPS. The fix is to...

Intermediate 👁 32 May 28, 2026

0X00002755

WSAEDQUOT 0X00002755: Disk Quota Exhausted

This error means a socket call failed because the disk quota on a Windows system is full. It's not a...

Intermediate 👁 46 May 28, 2026

0X8009480F

Fix 0X8009480F: DNS name unavailable for Subject Alt Name

This happens when a certificate request includes a DNS SAN but the CA can't resolve it. Fix the DNS ...

Intermediate 👁 41 May 28, 2026

0X000008E1

Fix 0X000008E1: NERR_NameNotFound network alias error

This error means Windows couldn't find a message alias (like a computer name) on the network. Happen...

Intermediate 👁 30 May 28, 2026

DNS_PROBE_FINISHED_NXDOMAIN

DNS_PROBE_FINISHED_NXDOMAIN fix that actually works

This DNS error means your browser can't find the server. 90% of the time it's a local DNS cache or r...

Beginner 👁 88 May 28, 2026

0X000013C7

Cluster Network Stuck in 'Already Online' — 0X000013C7 Fix

This error pops up when you try to bring a cluster network online that's already marked online. The ...

Intermediate 👁 33 May 28, 2026

0X0000274F

Fix WSAENAMETOOLONG (0X0000274F) in 3 Steps

Your app crashed because a file path or network name is too long. We'll shorten or remap it. Had a c...

Intermediate 👁 36 May 28, 2026

0X00000045

BIOS 0X00000045: Network Session Limit Hit

This means your network adapter ran out of room for new connections. Usually a driver or BIOS settin...

Intermediate 👁 56 May 28, 2026

0X00001702

Fix ERROR_CLUSTER_MEMBERSHIP_INVALID_STATE (0x00001702) on Windows Server

This error pops up when a cluster node's membership state is out of whack. It usually means the node...

Advanced 👁 36 May 28, 2026

0X0000003B

Fix ERROR_UNEXP_NET_ERR 0X0000003B on Windows 10/11

This error usually means a corrupted Winsock catalog or a bad network driver. Resetting Winsock and ...

Intermediate 👁 35 May 28, 2026

0X0000258A

DNS_ERROR_AUTOZONE_ALREADY_EXISTS (0X0000258A) Fix

This error means Windows DNS tried to create a zone that already exists as an Active Directory-integ...

Intermediate 👁 40 May 28, 2026

0XC0230007

Fix STATUS_NDIS_OPEN_FAILED (0xC0230007) network error

You're getting this error when a program (like a VPN or firewall) can't open your network interface....

Intermediate 👁 32 May 28, 2026

0XC00002CD

STATUS_DS_SENSITIVE_GROUP_VIOLATION (0XC00002CD) Fix

You can't add a user to a protected Active Directory group. The fix depends on how deep you need to ...

Intermediate 👁 38 May 28, 2026

0X8004D020

XACT_E_TIP_PROTOCOL_ERROR (0x8004D020) Fix: Transaction Manager Protocol Error

This error means two MSDTC transaction managers can't talk to each other. Firewall rules or network ...

Intermediate 👁 38 May 28, 2026

Network cable unplugged

Network Cable Unplugged Error on Windows 11 22H2

You see "Network cable unplugged" when your cable is plugged in. The fix is usually a driver or powe...

Beginner 👁 88 May 28, 2026

0X400A0004

STATUS_CTX_CDM_CONNECT (0X400A0004) on Terminal Connection

This is an informational event, not an error. It means the Client Drive Mapping service connected du...

Beginner 👁 35 May 28, 2026

0X000004B4

ERROR_BAD_PROVIDER (0x000004B4) – Invalid network provider name fix

This error means Windows can't find a valid network provider for a mapped drive or path. Usually cau...

Intermediate 👁 34 May 28, 2026

WiFi keeps dropping on Windows 11 22H2—fix in 2 minutes

Your WiFi dies every few minutes on Windows 11 22H2? The power-saving setting for the wireless adapt...

Beginner 👁 63 May 28, 2026

0XC0262338

Fix ERROR_GRAPHICS_MONITOR_NOT_CONNECTED (0XC0262338) Fast

This error means Windows thinks a monitor's disconnected from a video port. Real fix: check cables, ...

Beginner 👁 40 May 28, 2026

0X0000215E

Fix ERROR_DS_DRA_SCHEMA_INFO_SHIP (0X0000215E) Fast

Active Directory replication fails because schema info can't ship between domain controllers. Usuall...

Advanced 👁 38 May 28, 2026

0X00002558

DNS name has invalid character (0X00002558) fix

This error shows up when a DNS name has a character Windows can't handle. Most times it's an undersc...

Intermediate 👁 41 May 28, 2026

0XC0000413

Fix STATUS_AUTHENTICATION_FIREWALL_FAILED 0xC0000413

This error means Windows blocked your login because the authentication firewall kicked in. It usuall...

Intermediate 👁 85 May 28, 2026

Fix 'DNS Server Not Responding' on Windows 10 & 11

Can't load websites? This DNS error usually means your PC can't reach the server that translates dom...

Beginner 👁 38 May 28, 2026