>>> Most likely your router is set up to separate wired from wifi
>>> connections.
>>>
>>> Possibly has a 'guest' network on wifi that only allows internet
>>> access,
>>> not access to the wired LAN
>>
>> So, the guest network hypothesis seems to be the favorite right now.  I
>> shall study my router. It is a D-Link WBR-1310 if any of you are
>> familiar with it.
>>
>> Some additional factoids:
>>
>> If I ssh to the RPi3 and give a false password it says 'permisson
>> denied.
>> Try again'
>>
>> My main computer (Ubuntu) has wired ip address 192.168.0.101 and wifi
>> address 192.168.0.104. I CANNOT ssh from my RPi's to 192.168.0.104 even
>> though they are all on the wifi network at that point!
>>
>> Jack
>>
>>
> Have you tried pinging the PI's from the wired network and back?

Yes. No problems.

I should also mention that I have full VNC communication between Ubuntu
and the RPi3.

Jack

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