Last Thursday (Feb, 19th), I neatened up the network wiring so that the Valencia Gardens LAN setup is a little easier to understand and the computers won't lose their IP addresses and require staff and volunteers to rejigger their DHCP leases as per this post.
Most of the work involved rearranging Ethernet cables and the Intel hubs into which they were plugged.
The major thing was to decouple all three hubs from each other in order to clarify wiring and avoid a single point of failure. Originally, the hubs were daisy-chained to each other through their "Uplink" ports, with the leftmost hub plugged into Ethernet wall jack 4-D1.
There was a weirdness though, as the rightmost hub also was plugged into wall jack 7-D1. This is a typical no-no as you'd want to either daisy-chain or direct connect but not both
I unlinked the hubs by disconnecting their uplink Ethernet cables and plugging them into the nearest wall jack. (While doing that, found that 6-D1 doesn't work.)
I also found an extra network cable and used it to connect computer #14 to the LAN. It was unconnected before.
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