Trouble shooting in the network

You can find bugs in a network by systematicall search only. Following you will find some questions to incyrcle the propable cause of trouble:

Did someone worked today on knitting machines, pattern workstations, the network or the power supply?
Who had worked on a unit and what was done?
Which component does not work properly?
Are there individual units not working?
Are all components, connected to one hub or switch, concerned?
Are collisions displayed?
Collisions at network cards, hubs or switches?
Which application do not work?
Have there been simmilar trouble?
What caused simmilar trouble?

First of all let the responsable electrician or network supplier search for the bug refering to this information. Order a Stoll technician only if the network cabeling is free of bugs.