Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
undefined
@cedricundert Please share the output of M122 as well. If the RasPi isn't always available via ping, I'd tend to say there is a problem with your router or PC. I am not aware of any network problems with version 3.5.1.