You say the plotter has a static IP...
by Darryl~ Moderator
In reply to
Network keeps going down ...
Network keeps going down - seems to be caused by a plotter - help!
The general setup is that all devices are plugged into network outlets, the cables of which run back to a patch panel in our server room. Each plug is then patched to a plug on a 24-port HP procurve switch. The server is plugged into one of the ports as well.
The problem we've been having is that our network goes down sporadically, occasionally, without any hardware or software change. One minute it's there, the next, it's not.
Through troubleshooting, I have made some configuration changes, and identified some parts of the network that weren't set up right. However, I have now got the problem seemingly isolated to one device on the network.
It is a plotter we use for engineering drawings. It is a networked plotter, a Canon iFP710. While the whole network runs off the DHCP server, the plotter is assigned a static IP address. It has a built in network card. This has worked well for us for almost a year. However, today it seems to be the cause of a problem. And perhaps it has always been the cause of this sporadic problem. When I plug it into the switch, the whole network goes down. When I unplug it and re-start the switch, the network comes back, generally problem-free. I have replaced the cable from the plotter to the wall, and also from the patch panel to the switch.
Anybody have any ideas for me, or is there more info I could provide that will help diagnose this problem?
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