I'm looking how to write some code for my RasPi zero for WiFi connection detection. It connects to my WAP. Originally there is/was the problem if the WAP goes down/up it doesn't reconnect. I dug around and was told the default was is flawed and was shown the better way. I did it and it kind of s…

Can you use a ping node? Then create some if loops to make it all work?

Is it actually the router that needs to be rebooted? In which case run node-red somewhere else and when you see that the other device has not reconnected force a reboot of the router.

Brew, Of course! Thanks. Blonde moment. Colin, Well, I am hoping not. If it is the modem which needs to be rebooted, that's a whole other story. Just I was changing some WiFi setting in the modem and when they were applied the WAP was taken off-line and brought back up (by the modem) but…

It was the fact that you indicated that sometimes even a reboot of the pi doesn't fix it that made me ask. There must be some reason. The first thing to do is to wait till the pi fails to connect again and look in /var/log/syslog on the pi, in case there is something helpful there. There is alway…

Ok. Thanks. I'm not sure about the: It was the fact that you indicated that sometimes even a reboot of the pi doesn't fix it It hangs and I can't reboot it, because it is not on the network and is headless, so I have to power cycle it. Yes, finding the exact reason is going to be tricky. Th…

[image] Trying_to_learn: It hangs and I can't reboot it, b I thought you said that you wanted the flow to try rebooting a few times but if that didn't work then to shutdown. From that I thought you meant that sometimes even a reboot didn't fix it. Perhaps that is not what you meant. [im…

Ok, sorry to clarify. The RPZ is headless. Now and then it locks(locked) up. I did a lot of digging and someone on the RPI forum said the supplied system for connecting to a WAP is problematic - if not deprecated. The older problem was shown also by the LED blinking crazily on the RPZ. I could …

I had a similar problem which I described at; [image] Auto modem reset when internet down Share Your Projects I started by using a node-RED flow which controlled a MQTT remote relayboard, which worked very similar to your flow above, and removed power from the router caus…

I don't understand what you mean by using a better way to connect to wifi. If you have messed with something in the way the OS uses wifi then all bets are off. So you don't actually know that it is a wifi problem at all. Rather than adding flows to attempt to sort a problem when you don't even kn…

well, from what I have found: /etc/network/interfaces, ifup/ifdown, the "hotplug" keyword are all obsolete . Even in Jessie. What you want is the modern way of configuring network interfaces, which is event-driven: when an interface is brought up, an event is fired and dhcpcd configures network…

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RasPi Zero Wlan0( ) connection detecting

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Paul-Reed 17 January 2020 09:30 9

I had a similar problem which I described at;

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RasPi Zero Wlan0( ) connection detecting

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