Client machines connected to second tier switch cannot see wireless clients.

[AverageGuy]

I have an OPNsense router that is connected to a 16 port managed switch.  While it is "managed" I haven't done any configuration changes to it.  One of the ports on the switch is connected to a second 8 port switch.  Everything is on 192.168.2.0/24 network.  The machines that are hard wired to the 8 port switch cannot connect to any wireless device (the one's I've tested).  The error is "Destination not reachable" even though they are on the same network.  While I can't say for sure, it might be related to a recent router update.  I don't recall ever attempting to connect to a wireless device from those hosts before, so I might be barking up the wrong tree.

What might be going on here?  All hardwired devices seem to be able to communicate with other hardwired devices but I've not tested all the permutations.  The devices on the 16 port switch have no issues with wireless devices.
Thanks for any help.
Jim.

[AverageGuy]

Here's a bit more information.  I have the following network devices.  The 16 port switch is a Prosafe GS116E, the 8 port switch is a Netgear GS308.  There is also a TPLink mesh T-1300 an Aircube and a Netgear WAC-104, Access Point. 

The router connects to the AP, the AP then connects to the Prosafe switch and to the  Aircube via a long Ethernet cable.  The GS308 is located across the basement and is also plugged into the Prosafe.  The only strange thing I see about this network is that the Prosafe doesn't appear on the network anywhere.  I don't know how to manage the Prosafe switch.  I guess I have to do it off network.

[AverageGuy]

It has magically started to work.   Before

Code: [Select]

wl@MSI:~$ ping 192.168.2.21
PING 192.168.2.21 (192.168.2.21) 56(84) bytes of data.
From 192.168.2.41 icmp_seq=1 Destination Host Unreachable
From 192.168.2.41 icmp_seq=2 Destination Host Unreachable
From 192.168.2.41 icmp_seq=3 Destination Host Unreachable

After, 1 hour later

Code: [Select]

ping 192.168.2.21
PING 192.168.2.21 (192.168.2.21) 56(84) bytes of data.
64 bytes from 192.168.2.21: icmp_seq=1 ttl=255 time=2.41 ms
64 bytes from 192.168.2.21: icmp_seq=2 ttl=255 time=1.46 ms
64 bytes from 192.168.2.21: icmp_seq=3 ttl=255 time=1.76 ms
^C