I've installed a new Python function to monitor the WiFi and (eventually) do
something when it goes down (eg cycle WiFi or reboot). So that problem is
parked for the moment while I gather data.
While I was testing my new function, I stumbled across yet another problem.
My new function pings three other devices on the Wimborne Model Town local
network and if none of these can be contacted, it logs a "WiFi Down". If one
or more can be pinged, it simply lists their status (Up or Down).
As it happens, I picked the Model Town's local Webserver as one of the three
devices. This is only accessible from the local network side and not the
Internet (other than via a VPB Server). This device has consistently been
logged as "Down" and I cannot ping it from any other device on the Town's
local network. However, people using phones on site and logging in via one of
the two on-site WiFi Access Points can open the Sites Web Pages.
I've put a diagram showing the relevant part of the network at:
If you look at the area labelled 'Railway Room Store', you will see that
access from the Internet comes in from the left ('To / From Office Router') and
into the lower of the two 5-Port Ethernet Switches. Once through the VPN
Server, traffic is routed to the upper of the two 5-Port Ethernet Switches. I
cannot ping from any device to the WMT Webserver, including from the VPN
Server, but on-site users who access via the Antennas can get the web pages.
Any ideas what could be causing this? We've tried power cycling the server
and all the associated switches.
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