Enabling outbound UDP has helped some. Weaved now sees my devices as being online, but can't connect to them. A little more background: I've increased security on my WebIOPi setup by following the suggestions here: https://braindump.devries.tv/index.php/raspberry-pi/94-secure-webiopi-try-2, In general, the ideas seem sound. I made a few changes by using a Virtual Host to only pass traffic on port 88 to WebIOPi's port 8000 ( so that I could use Apache on port 80 for PHP ), and modified the iptables info, since his use of -s/-d seemed backwards. Turning off the iptables rules, I was able to get Weaved to recognize both Apache and WebIOPi, and work with them properly. However, turning the iptables rules back on resulted in no connectivity, even with the UDP allowance. I'm assuming the solution is that I need to open up more access to Weaved, but without knowing exactly what and where, it's guesswork on my part. I've seen some Forum postings describing the details of how Weaved works. I'll do some reading and see what I can learn. Any more suggestions as to where to concentrate my efforts is appreciated. Weaved seems very useful, and I certainly want to learn more. Thank You for your help, and have a great day!