I have two Raspberry Pi 4's that SSH and sshpass into each other over my WiFi network. While programming the first RPi4, it stopped communicating with the other for no apparent reason. I checked IP addresses (static) which hadn't changed. I could ping each RPi4 from a PC and visa versa, but they could not ping or talk to each other. Very strange. Forums, searches and youtube videos were of no help. So I went into settings in my FIOS G3100 router and under "WiFi Settings", changed the primary names (only) of both devices. Lo and behold, they can now talk to each other again. Can't explain why (possible router bug?) but if all else fails, try this.
Statistics: Posted by trex101 — Wed Nov 05, 2025 2:45 am