This failure may indicate that your local network is offline or that the Steam Friends servers are currently offline. Investigations reveal that the most likely culprits include; Bugs present in Steam ...

The Steam friends network unreachable error is usually caused by a corrupted cached data, if you are using a beta version of the app, or an bad internet connection ...

Steam, without a doubt, is one of the most popular game launchers. It not only allows you to download and play some of the most famous titles, but it also lets you add friends and build a community.