Articles about network | UserComp.com

Making a Static Virtual Internal NAT Switch Work with Hyper-V

Learn how to create and configure a static Virtual Internal NAT Switch in Hyper-V to prevent IP addresses from changing.

Making a NAS Discoverable: Setup Guide

Learn how to make your Network Attached Storage (NAS) discoverable on your network and access it easily. Follow this setup guide for NAS devices on various platforms such as Linux, Windows, and MacOS.

Connection Refused: Trying to Connect Linux Server (XX.XX.XX.XX) for Java Application

This article explains how to troubleshoot a Java application that fails to connect to a Linux server with a 'Connection Refused' error. It covers checking server status and network connections using netstat.

Communicating Two Subnets: ISP Modem Router (Huwawei EG8145V5) and Xiaomi AX3000

Learn how to configure and communicate two subnets using a Huwawei EG8145V5 ISP Modem Router and a Xiaomi AX3000 router. This tech support article covers setting up the LAN and WAN ports and establishing a connection between the two networks.

WireGuard Client Works Perfectly with Docker and Kubernetes: Troubleshooting Connectivity Issues

Learn how to set up and troubleshoot WireGuard client connections in Docker and Kubernetes environments. Resolve unique connectivity issues in your Kubernetes configuration.

How Do NAT Rules on One Computer Affect Traffic on Another?

Learn how NAT rules on one computer can impact traffic on another when both are connected behind a router.

Windows 11: Network Connection Error with SL/TLS (0x8004210A)

Users of Windows 11 have reported encountering a network connection error with SL/TLS (Secure Sockets Layer/Transport Layer Security) identified by error code 0x8004210A. In this article, we will discuss potential causes and solutions for this issue.

CentOS Stream 9: Frequent 'Nameserver Not Known' Issue

A CentOS Stream 9 server, directly connected to a router, is functioning well except for the frequent occurrence of the 'Nameserver Not Known' error. In this article, we discuss possible solutions to resolve the issue.

Configuring Pi-hole Service for 192.168.0.0/16 Subnet

Learn how to configure Pi-hole to serve ads blocking for the 192.168.0.0/16 subnet. Follow these steps to set up Pi-hole on Ubuntu 22.04 with Proxmox, FTL v5.25.1, and Pi-hole v5.18.2 and Web Interface v5.21.

Understanding the Use of I Option in Traceroute Command with Netfilter Firewall

In this tech support article, we will discuss the use of the I option in the traceroute command when dealing with a Netfilter firewall. Two different packages have been tested to provide a clear understanding of this concept.

Setting up a Second Router as a Parasite Router: Forward Ports

Learn how to set up a second router as a parasite router and forward ports for personal devices. This guide covers the process for both Linux, Windows, and MacOS.

Forcing a Specific WLAN Device to Connect Automatically in Linux (Raspberry Pi 4 with Debian)

Learn how to force a specific WLAN device (e.g., wlan0) to connect automatically to a predefined AP (wlan1) in Linux, using a Raspberry Pi 4 running Debian.

Using Loopback IPs on macOS: A Solution for Binding Random Addresses

Learn how to use loopback IPs on macOS and solve the issue of binding random addresses within the 127.0.0.0/8 subnet. Follow this guide to create an alias and make it work.

Understanding NetBIOS and Network Discovery: A Beginner's Guide

NetBIOS, or Network Basic Input/Output System, plays a crucial role in Windows Network Discovery. In this beginner's guide, we'll discuss what NetBIOS is, how it operates, and its role in LAN servers.

Ubuntu 22.04 VM on KVM/virt-manager Not Connecting to Internet

This article provides a solution for users experiencing issues with their Ubuntu 22.04 VM not connecting to the internet when installed on KVM using virt-manager.

Ubuntu 22.04 on KVM/virt-manager: Network Not Working

Users report having trouble getting their Ubuntu 22.04 virtual machine to access the internet through KVM and virt-manager. Despite trying various methods, the issue persists. This article provides suggested steps to help resolve the problem.

Find Source Bandwidth Cap for Ubuntu 22.04 LTS Workstations

Learn how to find the source bandwidth cap on Ubuntu 22.04 LTS workstations for coworkers with different jobs.

Two Computers with Widely Different Download Speeds: Troubleshooting

Two identical computers connected to the same unmanaged switch via 2.5 Gbps NICs exhibit significantly different download speeds. This article outlines potential causes and solutions for this issue.

Deep Dive into PORT Number Confusion: OS Node Packet Received Unexpectedly

In this tech support article, we delve into the confusion surrounding PORT numbers and unexpected OS node packets. Learn how to identify and resolve this issue.

How to Display Network Usage Tasks in Windows 10 Task Manager (Resource Monitor) Including Kernel?

Learn how to view network usage tasks, including kernel tasks, in the Windows 10 Task Manager (Resource Monitor). Follow these steps to optimize your system's performance.

Accessing Websites with Private IP Addresses: A Tech Support Query

A user reports accessing a website within their university's network reveals their private IP address. Understanding the implications and potential solutions for this tech support issue.

Proxmox Linux Bridge: Binded IP not Working (50% of the Time)

This article explains a common issue with Proxmox Linux Bridge where the binded IP address fails to work approximately 50% of the time. We'll provide a potential solution to help you resolve the problem.

Linux Hosts with Two Interfaces: Host A and Host B IP Addresses

This article explains how to identify IP addresses of Linux hosts with two interfaces, focusing on Host A and Host B.

Docker Network Traffic with Cisco VPN Connection: Bridging Access for Containers on Company LAN

Learn how to configure Docker containers to access devices on a company LAN through a Cisco AnyConnect VPN connection. This article covers setting up a bridged network and routing traffic between the Docker network and the VPN connection.

Should I Leave Bandwidth Higher Actually? Setting Internet Connection and Prioritizing Networks

When configuring your internet connection and router settings, you may be asked about upstream and downstream bandwidth. Should you leave it higher or limit it? Let's explore the implications of bandwidth prioritization.

Teltonika RUT200: Providing Internet Access to Devices on Separate Home Networks

This article discusses the process of configuring a Teltonika RUT200 router to provide internet access to devices connected on separate home networks.

Google Chrome vs Firefox: Network Developer Request for HTML Autopost

A developer encounters an issue where Google Chrome fails to render HTML content during localhost autoposting, unlike Firefox. This article discusses potential solutions.

Understanding the Stack Exchange Network: A Comprehensive Tech Support Guide

The Stack Exchange Network is a vast collection of 183 Q&A communities, including Stack Overflow, the largest and most trusted online platform for developers to learn and share knowledge. In this tech support article, we'll explore the ins and outs of the Stack Exchange Network, helping you make the most of this invaluable resource.

Connecting Two Discrete NICs on a Computer: A Tech Support Guide

Learn how to connect two discrete Network Interface Cards (NICs) on a computer and manage multiple network connections in one system. This tech support article provides a step-by-step guide.

Capturing Packets: Differences between Snapshots and Analysis of Different Packets

Learn the differences between packet snapshots and analysis of different packets during network application diagnosis. Understand when to use each method for effective packet capture.

Using Home Router IP Address as Proxy for Computer Anywhere?

Learn how to use your home router IP address as a proxy for your computer anywhere. This article covers the process for Linux, Windows, and MacOS.

Invisible Wi-Fi Network on Windows 11: Why 'Public' is Recommended

Learn why selecting 'Public' instead of 'Private' for an invisible Wi-Fi network on Windows 11 is recommended. Discover the implications and benefits.

Interconnecting Two Discrete NICs: Failed Routing Table Manipulation

This article provides a solution to interconnect two discrete Network Interface Cards (NICs) by manipulating the routing table. However, users experiencing issues may find that their attempts have failed. This article explains the potential causes and offers troubleshooting steps.

NetDiscover Not Identifying Wi-Fi Devices in VMWare

This article discusses a common issue where NetDiscover fails to identify devices connected via Wi-Fi when running in a VMWare environment. Various workarounds and troubleshooting steps are suggested.

Windows 10 Ethernet Falls Back to 1Gbps or 100Mbps Randomly: A Solution

Users of Windows 10, version 10.0.19045, report that their Ethernet connection randomly drops to 1Gbps or 100Mbps. This issue occurs with a Realtek PCIe GBE Family Controller on a motherboard and an ASUS RT-AC66U router. In this article, we suggest a solution to help you stabilize your Ethernet connection.

Iptables Not Dropping UDP Packets with Exact IP Address

This article explains why iptables may not be dropping UDP packets with exact IP addresses and provides solutions to resolve this issue.

Routing Traffic Between Different Table/Backend Interfaces: wlan0 and wg0

Learn how to configure and route traffic between two manually configured interfaces, wlan0 and wg0, with different table/backend configurations.

Setting Up Universal Home DNS for Network Access Control

Learn how to set up Universal Home DNS to manage network access for multiple devices in a human-friendly way, keeping them securely away from direct internet access.

Configuring NAT: Main Router and Two Secondary Routers - NAT Security Concerns

When setting up a NAT network with a main router and two secondary routers, it's crucial to consider security concerns. In this article, we discuss the necessary configurations for passing traffic between routers.

Using Mirrored Network with Default WSL2 Distribution for NAT-bound Applications

In this article, we discuss how to set up a mirrored network with the default WSL2 distribution while keeping the NAT settings in place. This setup is particularly useful for Docker Desktop and other containerized applications.

Using a Mirrored Network with WSL2 for Docker Desktop: A NAT Perspective

In this tech support article, we will discuss how to use a mirrored network with WSL2 for Docker Desktop while remaining on NAT.

Troubleshooting Network Connectivity Issues in a Workplace: A Common Conundrum for Companies with 30 People

Many small workplaces, including those with 30 people, may encounter network connectivity issues. In some cases, users cannot sign onto the work domain, instead connecting to a generic workgroup. This article provides solutions to help resolve this common conundrum.

Is it Possible to Use a Fast Switch for a Network of Older Routers?

A reader asks if they can use a fast switch with older routers to connect 10G link computers. Discover the solution in this tech support article.

Changing Windows 10 Network Adapter MAC Address: Strange Behavior

Users report strange behavior when trying to change the MAC address of a network adapter in Windows 10. This article provides instructions on how to troubleshoot and resolve the issue.

PC Won't Connect to Internet: 'Secured' Displayed Instead of 'Connected'

Users report their PC displays 'Secured' instead of 'Connected' on the network. This issue can be caused by various factors, including network configuration, security software, or hardware problems. Here's how to troubleshoot and resolve Event 4307 initialization failure.

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