We look after a number of small business networks and from time to time we have reports of network connectivity issues. Recently we have a network that is randomly stopping and starting internet access on a handful of PC's that are not patched into the same switch. We have found however that removing one switch in particular seems to fix the issue so we think that's the cause. It does make me think however that we could use a very easy to use network diagnosis tool, be it hardware or software to help with this sort of thing. As we are not advanced network engineers we'd like something reasonably easy to use and translate the findings. Any recommendations? Thanks
Also, when removing the one switch out of the network it corrects the problem completely? Can you tell if its trying to communicate or locks up when this happens? Could be creating broadcast storms or loops and may be faulty all together. Is there any special configuration on this one switch? Is it a layer 2 (typical) switch or is it a layer 3 (Managed for VLAN assignments)?