Troubleshooting networking issues

This article explains how to troubleshoot network problems and which information our support needs to proceed.

In general

Try checking the physical connection. If there is a successful connection the LEDs on both sides of the cable should be blinking.

Instructions

Execute the following commands on the machine, where you have problems with.

Windows

Network configuration

ipconfig /all

And then search for your network adapter, e.g., Ethernet. This will provide you with your current MAC, IP, DNS and Gateway.

Untitled

Internet access

ping google.de

This tests whether the general connection to the internet (and your DNS)

Untitled

DNS

nslookup umh.app

This checks whether your DNS is set up correctly.

Untitled

Linux

Just a little different commands

Network configuration

ip addr

Internet access

ping google.de

DNS

nslookup umh.app
Last modified October 5, 2022: Historian article (#107) (5f30dc0)