Machines dropping off the network randomly
This is an extremely weird problem.
We've had a new ICT suite built, new data points (all FLUKE tested) and new HP machines.
For two weeks all was fine. As of last week, machines would randomly drop off the network. Link light on the switch goes off, machine says cable unplugged, can't ping it. If you switch off the machine and power it back on the link light comes back and all is OK.
It happens at any given time to any given machine.
At first I thought it could be DNS as we had someone working remotely on the server who was looking through DNS and made some changes.
Unfortunately I don't have a spare switch to replace and test if it's the switch. All I know for now is it's not the data points as they have been tested again yesterday and definitely work.
Anybody have any ideas?