How to troubleshoot a slow computer network?

Ping - Network Troubleshoot

You have problems on your network? Network is slow or it doesn’t work? Follow this Network troubleshooting Guide to find where the bottleneck is.

Troubleshoot a Slow Network – Slow Server

Troubleshoot a Slow Computer Network Your Computer is Slow and Not the Network.
How do we know the server is slow and the problem is not elsewhere?

Troubleshoot a Slow Network – The entire Network is Slow

If the entire network or a part of the network is slow, it could mean you have a faulty switch or a you network is wrongly configured. Here are some hints about possible faults.