Hi Will. I use geofencing myself, but also encountered this problem because my area was set too small. Sometimes during the night my location would bounce outside that area and the lights would come on. I ended up increasing the size of the area which helped.

That being said, location tracking with IFTTT can be temperamental as well, so may not completely solve your problem.

You could try to prevent it retriggering if you leave and arrive home too quickly. To do this I think the following steps would work:

• Trigger: When x_at_home changes to 0
• Change variable x_at_home_recent = 1
• Pause 5 minutes
• If x_at_home_recent = 1
  • Run whatever steps should run when this person leaves home
  • Change variable x_at_home_recent = 0
• Else
  • Change variable x_at_home_recent = 0
• End if

You would also need a sequence to do the following:

• Trigger: When x_at_home changes to 1
• Change variable x_at_home_recent = 0

Combined, these two sequences should do it. When you disconnect from wifi the 'leave home' sequence will trigger but wait for 5 minutes. If you reconnect before 5 minutes are up, x_at_home_recent will be reset to 0 causing the first sequence to stop after the 5 minute pause. If you have not reconnected, x_at_home_recent will still be 1 and the sequence will continue after the pause.

Thanks Derek,

I think that explanation is backwards for my problem- it'd be useful for routines running after I leave to avoid things like accidentally arming a security system while still in the house, but my problem is the reconnecting triggering arriving home routines. 

I think what I actually need to do is more along the lines of:

-Leaving Wifi currently makes x_at_home=0

-set x_at_home falling as a trigger

-wait some time

-if x_at_home still = 0

-change x_really_not_home to 1

add a new sequence that sets really_not_home to 0 when x_at_home rises to 1 (probably with a 1 minute delay)

Then trigger my sequences for arriving home off a rise in x_at_home, when dark but only if really_not_home=1

does that make sense?

That has just given me the idea that if I really want to over-complicate this I could replace my x_really_not_home with x_time_away, have the sequence repeatedly wait periods and add 1 and set clauses to trigger different actions depending on how long I've been away- such as if I've been out over an hour put the kettle on for a cup of tea.... I'll work on the trigger suppression first

Hi Will, yes what you've summarised there would work but I think you can do away with x_really_not_home and at that point just start triggering the various steps that should run when someone is gone.

And since you will probably want to set this up for multiple people, you can have a sequence to run those steps which has the other sequence trigger and then call that using the call sequence step.  This will save you having to create the same set of steps over and over again.

Thanks Derek.
I think I've got it doing what I want it to do now.
I've settled on calling the variable x_away_timer which for now suppresses the glitch if it lasts under 5 minutes (I figure anything longer than that is likely the whole home wifi shitting itself so none of my devices will be receiving instructions until i get up and reboot it anyway... unless theres a power cut but thats rare enough I'm not going to factor that in)

Just took a look at the sequence and I'm a little confused...but if it's doing what you need that's the main thing!

I use alexa for geofencing it is much more reliable than ifttt for me. I tried to use wifi as my trigger but I had the problem that each time i received a text my wifi would disconnect and reconnect. Could just be my phone. Pixel3 both mine and my wife's phone had this problem but they are the same model phones.

Thats interesting- me and my partner both have pixel 3a and have never had that problem.
Either way I've now got it so that if I disconnect and reconnect within 5 minutes, whether that be a wifi glitch or going out of range doing something like putting the bins out or moving the car to a different space it dosnt treat it as a new arrival at home.