Articles about network | UserComp.com

Setting up Pi-hole on Asus GT-AX11000: Unable to Hit Anything on the Internet

Learn how to set up Pi-hole on Asus GT-AX11000 router to resolve WAN connectivity issues.

HyperV Internal Network: Unidentified Network Keeps Resetting after Windows 11 Upgrade

Learn how to resolve an issue where a HyperV internal network keeps resetting after upgrading to Windows 11, preventing file sharing access via SMB guest hosts.

Traffic Not Passing OPNsense Firewall in Hyper-V: Troubleshooting Steps

Experiencing issues with traffic not passing through OPNsense firewall in Hyper-V? Follow these steps to troubleshoot and resolve the problem.

Maintaining Connections: Keeping Network Interfaces Alive When Physically Disconnected

Learn how to configure network interfaces to stay active even when physically disconnected. This tip is particularly useful for tinkerers and system administrators.

LAN Network: Machine with Wrong Mask Causes Communication Issue after Cisco 2520 Upgrade

After upgrading a Cisco 2520 switch, a machine with an incorrect IP mask is causing communication issues. Previously, the same switch was connected to another switch via a trunk, allowing VLAN routing. Learn how to resolve this problem.

Windows Server 2022: Inactive Reserved IP Address Used by Another Device

Learn how to resolve a conflict when an inactive reserved IP address is used by another device on a Windows Server 2022 DHCP network.

WAN Passthrough with Managed Switch: A Good Idea for ISP-Provided GPON?

Exploring the possibility and security implications of implementing WAN Passthrough with a managed switch in the context of an ISP-provided GPON setup.

Understanding Private IP Addresses: 172.16/12 Prefix

This article explains the 172.16/12 private IP address prefix, its use in local networks, and its differences from public IP addresses.

Understanding RFC1918 Private IP Address Ranges

This article explains the concept of RFC1918 private IP address ranges, including the 172.16/12 prefix. Learn about the other private IP address ranges and their significance in networking.

iPhone Not Reaching Local Server IP Address Unless Server First Pings

This article explains how to resolve an issue where an iPhone fails to reach a local server IP address unless the server first pings the iPhone. The problem occurs on a Ubuntu 22.04.3 LTS machine running Apache 2 web server, with UFW disabled.

Setting up a VPN Tunnel between Draytek Routers

Learn how to connect two Draytek routers using a VPN tunnel. This tutorial covers the process of setting up a secure and reliable LAN-to-LAN VPN connection between the routers.

Unable to Connect Kali Linux VM to Internet: VirtualBox NAT Issue

This article discusses a common issue where a Kali Linux VM running on VirtualBox fails to connect to the internet despite having a NAT network configuration. We'll explore potential causes and solutions to help you get your Kali Linux VM online.

Wago 750 Ethernet Controller: Network Traffic Peaking at 38,000,000 bits/second

Users report their Wago 750 Ethernet Controllers reaching network traffic peaks of up to 38,000,000 bits/second, causing semi-unresponsiveness. This article discusses potential solutions and affected devices.

Connecting a Device to Another Subnet using a 3rd Device Proxy: A Solution for HTTPS Web Portal Access

Learn how to connect a device to another subnet using a third device as a proxy when unable to get an Ethernet cable connection but can access Wi-Fi.

Krontek KT2000 GPSS NTP Timeserver: Unexpected Password Required for Telnet Access

This article discusses an unexpected issue with the Krontek KT2000 GPSS NTP timeserver, which requires a password for Telnet access. We will explore the possible reasons for this requirement and suggest solutions.

Setting up a Captive Portal with hostapd, apache, isc-dhcp-server, and iptables on Debian Manjaro

Learn how to set up a captive portal using hostapd, apache, isc-dhcp-server, and iptables on Debian Manjaro.

Ping/Connect KVM between Machines M1 and M2

Learn how to ping and connect KVM between two machines, M1 and M2, in a cluster environment. This guide covers the process for machine M1 to ping IP address VM on machine M2.

Windows 10 (22H2): Network Drives Not Re-connecting After VPN - FortiClient

Users report that their network drives are not re-connecting after a VPN connection drops and re-connects using FortiClient on Windows 10 (22H2). This article provides a suggested solution.

Google Cloud VM and Putty: Network Error 'Software caused connection abort' - Troubleshooting

This article provides a solution for the network error 'Software caused connection abort' when using Putty to connect to a Google Cloud VM.

Putty: 'MovingGet' Command Fails with 'Network Error: Software Caused Connection Abort'

Users encountering a 'Network Error: Software Caused Connection Abort' issue while using the 'MovingGet' command in Putty may not be dealing with a keep-alives problem. This article offers potential solutions for resolving the error.

Connecting Nested Routers: A Tech Support Guide

Learn how to connect nested routers, such as Eero mesh WiFi and PLINK, for optimal network performance. This tech support guide offers step-by-step instructions.

Accessing a MacOS Web App on LAN: IP Address and Port Number

This article explains how to access a MacOS web app on a local area network (LAN) using the IP address and port number.

Emulating Network Printer with USB Printer: A Step-by-Step Guide

Learn how to emulate a network printer using a USB printer connection. This step-by-step guide covers methods for both Linux, Windows, and MacOS.

Ethernet Interface Using Static Address Ignoring Defaultroute Provided by DHCP Server

This article discusses a scenario where an Ubuntu system's ethernet interface (eth0) is connected to a router acting as a DHCP server, providing a defaultroute. However, when eth0 is set to use a static address, the defaultroute is ignored. This article explains the cause and offers a solution.

Troubleshooting Blocked CONNECT requests during Nextcloud installation

Users report experiencing slow network performance during Nextcloud installation due to blocked CONNECT requests. This article explains possible causes and solutions.

Does WPA2 Not Work with Realtek RTL8822CE Network Adapter on Windows 11?

Users report issues connecting safely to Wi-Fi networks using the Realtek RTL8822CE 802.11.AC PCIe adapter on Windows 11 with WPA2 encryption. This article provides potential solutions.

Windows 'ping IP' Uses Wrong IP Address: A Troubleshooting Guide

Learn how to resolve the issue where Windows uses the wrong IP address during a 'ping' command. This guide covers common causes and solutions.

Microsoft Outlook Stops Syncing on LTE/4G Networks with Office 2021

Users of Microsoft Office LTSC Professional Plus 2021 report that Outlook stops syncing when they connect to an LTE or 4G network. This article provides potential solutions to resolve the issue.

Troubleshooting Ethernet Bridging on Home Network in Windows 10

Experiencing issues with Ethernet bridging on your home network in Windows 10? Learn how to troubleshoot and resolve common problems with your router and Wi-Fi connections.

Windows 11: Sending Conventional DNS Requests with DNS-over-HTTPS Enabled

Users report seeing conventional DNS requests despite having DNS-over-HTTPS enabled on Windows 11. In this article, we'll discuss what this means and how to troubleshoot the issue using Wireshark.

Minecraft Server Not Accessible After Fiber Optic Upgrade with Optimum

Recently upgraded to a fiber optic service with Optimum. The network stayed relatively the same, but the Minecraft server is now inaccessible. Ports for Minecraft have been unlocked on the router.

Routing Traffic from/to Webapp eth0 Instead of tun0 (VPN) in Debian

Learn how to route traffic for a web application over eth0 instead of the default tun0 interface in Debian, bypassing VPN connections.

Nokia G2425g-a ONT Router: PPPoE Connection with Unplugged Network Cable in Bridge Mode

Learn how to configure your Nokia G2425g-a ONT Router in Bridge Mode with a PPPoE connection even when the network cable is unplugged.

Trying to Change MTU: netsh int ipv4 set subinterface "WiFi" mtu=1500 store=persistent

This article provides a solution to an error encountered while trying to change the Maximum Transmission Unit (MTU) of a WiFi interface using the netsh int ipv4 set subinterface command with persistent store in Windows.

How to Change MTU Value to 1500 for WiFi Interface in netsh int IPv4

Learn how to change the MTU value to 1500 for a WiFi interface using netsh int IPv4 command in Windows.

Automatically Adding PPPoE Account on ZTE OLTc610 Terminal: A Beginner's Guide

Learn how to automatically add a PPPoE account on the ZTE OLTc610 terminal, even though the configuration menu suggests manual addition. This beginner-friendly guide covers the basics of Gpon networks.

Setting up 3DCs on the Same VLAN: Domain Controller Access Issues with Full Control on DC3

In this tech support article, we will guide you through setting up a Three-Domain Controller (3DC) environment on the same VLAN network. We'll discuss the issue of company data being added with full control on DC3, which causes access problems.

Ncat Inside WSL2 on Windows 11: Mirrored Networking Mode Configuration

This article provides a step-by-step guide on how to configure Ncat inside WSL2 on Windows 11 to use mirrored networking mode. Normally, a Ncat server starts listening on 127.0.0.1...

Setting Up Multiple Upstream Routers: A Comprehensive Guide

Learn how to correctly set up multiple upstream routers in your network topology, including a modem, OPNSense Router, L2 Managed Network Switch, various LAN clients, and another TP-Link Router.

How to Bind WireGuard Network Interface via IP Address instead of Interface Name in Linux

Learn how to bind WireGuard network interface via IP address instead of interface name in Linux for specific applications that require it.

Mapping IPv6 Addresses to Docker Containers: A Step-by-Step Guide

Learn how to assign and map IPv6 addresses to Docker containers for seamless communication between containers and the host network.

Inbound Connection Route 0.0.0.0: Server Original URL Display Issue

Users reported seeing a 404 error instead of the original URL when an inbound connection was made to the server with IP address 0.0.0.0. Instead, the server displayed a different IP address (0.0.0.0). This article explains possible causes and solutions for this issue.

Accessing Office Network Server with Public IP: A Case Study

In this tech support article, we explore a case where a user tries to access a server on an office network using a public IP address. We provide a step-by-step guide on how to handle this situation.

Connecting OpenVPN Client to Host Server on Windows PC

Learn how to connect an OpenVPN client to a host server on a Windows PC. Initiate the connection process on the server and establish a secure VPN tunnel.

Understanding Packet Forwarding vs Local Delivery in Network Routing

When a packet is received by the Linux kernel, it goes through the pre-routing chain. The routing decision is made whether to forward the packet somewhere else or deliver it locally. In this article, we'll discuss the difference between packet forwarding and local delivery in network routing.

Understanding Two Network Interfaces in Ubuntu 22.04 with Hyper-V Virtual Machines

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