On 11/19/22 11:55, dan moylan wrote:
the problems keep mounting and puzzling (moan).  computers
alphacent, aldeberan (both fc36) and rigel (fc27) all show
as connected on the local t-mobile wireless app, and locally
with ifconfig.  route shows 192.168.12.0 gateway on all
three.  they can all ping blu.org successfully, but not each
other, nor can they ssh into each other.  iirc everything was
fine a few days ago.  what have i done?  what's going on?

I am not familiar with the Wifi access point that the T-Mobile service provides, but I'm taking a guess here. Did you set up these machines on a "guest" SSID network or some such setting on the AP? I have found that the default configuration in typical home routers for guest networks is to isolate clients from each other and only allow access to the WAN. This would explain the behavior you are seeing.

-Shankar
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