What is the reason for the strange behavior of macbook'a - it either sees or does not see the network environment?

Question

Computer networks

In short - we got a swing with a poppy and everything connected with the network. More specifically, there is a network at work - 10 laptops on windows, a file washer on ubuntu, and here is a long-suffering poppy. It is not visible at all in a networked environment, from any computer. He sees - according to his mood - from July to February, no one and nothing, in February something happened to him - and suddenly he saw, but the happiness did not last long. The next day everything is deaf again, after a couple of days - he sees again. No patterns are observed, except for one - most often he sees towards the end of the working day). And, accordingly, network printers appear and disappear... Sorry, that is chaotic.

Answer 1

By the way you describe the problem, the errors are related to the operation of the SMB protocol.
Maybe this will help you mavericks-smb2-problem-and-fixes