paulbates

Check this in iox: Tools/Diagnostics/PLM Info
If it does not not say Connected, pull the plug in the eisy and plug it back in.
I had this happend when I first set up my eisy and also after one upgrade. Both times that fixed it

You can delete the switch from the ISY and re-add it. Caveats are:
if the switch is in scenes, in which case the switch will need to be re-added to the scene(s).
Likely you'll have to go back to iox programs that referenced the original switch and re-add it if necessary

Also, another method of copying the file. isy backups are bunch of zipped folders which follow the path of the file in question here. The individual file could be copied out of the backup and moved to the eisy. Here are high level directions (off the top of my head):
Take a copy of a backup file, open it in a zip app and navigate to the file location
Copy/unzip the file to the local storage of the machine you're restoring
SSH into the eisy, use that or SCP, etc to copy the file to the right location in the eisy
Reboot the eisy

You'll need to define a variable that has a precision (Prec column) of 4 (4 digits to the right of the decimal) to copy the value from the device into, then do these iox 'Then' statements:
Variable = Emporia Node (kw)
Variable = Variable * 1000 (This converts kW to W)
That should give you the watts value to take action in other iox conditional statements.
** Remember to use the eISY variable type of State (State Tab) with a Precision of 4, if you plan to use the variable for iox If statements

I do not believe that there is a range or a < or >.
The related topic is that you can give the eisy a static IP address, or use DHCP, where your router will assign it. Three points
If you use a static IP address for eisy, and you change your internet service/router in the future, there's a good change you'll lose contact with your eisy based on the different subnet choices different router manufacturers use. This is the support headache you mentioned
In the early days of node servers, they could run on a separate box and needed the exact (=static) ip address of the ISY. If you're not using older node servers and you are not running them a separate computer (Rasberry Pi, etc)... this problem no longer applies to you and there is no reason to use static up addressing any longer
If you want your ISY to have a specific IP address, the DHCP features of most routers allow you to define a specific address for network devices like the eisy
The eisy only needs to be on your network, ideally one of your router's switch ports to minimize network hops.
ANSWER: It's best to go into the config tab of iox and make sure your IP address is NOT static and is DHCP and let your network and eisy take care of themselves.

I've used the RCS X10, Insteon, Venstar Color touch and currently ecobee.
For those last 2:
Venstar:
Pluses:
Very configurable at the HVAC level. At my last house had 2 and could configure each one based on how the different parts of the house responded
decent app
Really good remote configuration via their sky port cloud web app. Really impressive
100% local API. Venstar could go out of business tomorrow. You'd lose the app and the website, but local control from the stat or ISY would work
It has battery power remote temp sensors that will let you average control across different areas of the house. I found that a great compromise compared to the surgery of converting your system to duct control.
Good humidity handling. Can be configured to call for humidity when heat is not running. I plumbed my humidifiers for hot water and it really helped my last house built in the 50's with 2 furnaces. I also had ISY programs to step the humidity down in response to really cold outdoor temps
Minuses:
The very configurable part has a downside. It's really technical and have to take notes and backup all the stuff configured with an SD card. I will say once i got it right, I kept the SD cards in the desk and forgot about it.
Remotes are big and a PITA to setup and get going.
Techy, less responsive touch screen. Drove my late wife nuts. Once all set up it was good that became less necessary and could use the app. But walking up to it to use can be intimidating

Ecobee
Pluses:
Easy to set up and install. It actually looks at the wires you plug in with software to verify the setup.
Contrasts with Venstar in that it does a lot on its own, humidity etc
Has a small temp/humidity remote and does averaging automatically. MUCH easier to install and get going than the Venstar remotes, smaller, less intrusive package.
Looks good. Relatively easy for family/guests to walk up and change mode and temps
Can connect to your power utility. I don't do that, but I did enter my utility's demand schedule. When I'm using AC, it cools off a little more before the start, and then lets it go up a few degrees during the schedule and then back to normal. It does save a little and my wife doesn't notice it
Has "social" features much like ring where your house is ranked against others in the area (which I find silly and don't use that)
Minuses
Cloud dependent. If ecobee goes under, I believe it still will be a stat but many enhanced features and the app are remote api dependent and will stop. I think it will be a stat because mine will work even internet is not there
Though not as "techy" as the Venstar, the features in the app are not as intuitive I like. Simple example, everytime I go out of town and use vacation mode, I stumble around to find the feature.
Summary:
Both Venstar and Ecobee are great solutions with the eisy. I've found I like the ecobee more as it does more automatically and less eisy programming. I have the eisy plugin and use it mostly for fan control to compliment venting for things like detecting showers in the master bath and after the second floor dryer after a cycle ends. I also have networked smoke co detectors and I shut all fans and HVAC down if one goes off.

A common thread has been safari, as the browser, giving that error. It's a reason I haven't ventured in yet.

See this thread
There is a newer skill that we all should be using

Did the problems appear right after the time of the above quote? Did the router change the eisy/policy's IP address also?  

Some questions:
How close is the sensor to the PLM when linking?
Have you tried linking mode? Go to iox under linking and click start linking. Then put the sensor in linking mode. If the sensor shows up on the list, complete linking
How old is you PLM? If you're not sure, there's a white sticker with 4 black digits on it, what are they. The fact that you're having problems linking and the scene problem hints at something going on there
 

Currently I have just a drip system that I turn the power on and off to the 24vac power supply with an insteon i3 outlet. I have iox programs that take weather data provided by my ecobee thermostat, via its pg3x plugin, to skip waterings based on forecasted rain.
I used to have rainmachine at my last house... but it looks like they are not going to make it as a business.
Rachio is good choice... while it will operate schedules without the cloud, *it does have cloud dependencies for integration with ha like eisy*. There is a pg3x plugin for it in the store
If I choose to install a sprinkler system here, I would go that direction. Scott's bought rachio which gives some confidence. 
Edit: I'd consider looking for a used rainmachine as its schedule programming and installation are 100% local, and there is a pg3x plugin for it.
 

Here is the "On" program
If         Time is Sunset       Or Time is  6:00:00PM   Then         Set 'Lighting Premise / Premise Lights' On   Else    - No Actions - (To add one, press 'Action')  
Here is the off program, I use something simila
If         Time is  9:50:00PM   Then         Wait  13 minutes  (Random)         Set 'Lighting Premise / Premise Lights' Off   Else    - No Actions - (To add one, press 'Action') This one will start running at 9:50pm, and wait a random amount of time for up to 13 minutes and then shut the lights off. You can tweak that however you want.
If you're interested, I can dig out the link to a post where I put lamp post light sensor in a project box with an insteon on/off micro module. It's Velcro'd inside on a window facing out and "switches on" around dusk.. this solves the problem of it being cloudy and dark sooner than dusk.

You'll want the first option to get it recognized by the ISY. After that you'll use the replace function... If it's a like for like switch replacement. That will add all of your configs.
The old switch and new switch will need to not be folders when the replace is performed. Afterwards, the old switch can be deleted from the ISY and the new switch placed in a folder.

App Settings/Gear icon Insteon  + It's limited to adding devices via linking mode at this time, can't create, add to or manage scenes via Insteon id

You press the button next to whatever feature your are tweaking after you change it. You should not need to write updates to devices, unless the little green 0101 icon is next to the device

I would declare this one to be in ticket land, let UDI help:
https://www.universal-devices.com/my-tickets/

Yes.. factory reset then restore device. It also must be in linking mode first. 
The "running then" is normal for the typical battery monitoring programs

I found your other post. The center button is used for linking. Take a look here
https://support.insteon.com/support-knowledgebase/tag/2473SWH

If the conditions of the program changes to false, the program will stop executing in its tracks during the Wait.
Since you turn off pool/waterfall, that kills the program in the first then statement
What you need to do is have 2 programs:
Reset Waterfall -
If
     Time is 2:00:00AM
     And 'Outside / Pool Waterfall' Status is On
Then
    Run Program Reset Waterfall 2 Then
 
Reset Waterfall 2
If
   (No condition)
Then
    Set 'Outside / Pool Waterfall 3way' Off
    Wait 10 seconds
    Set 'Outside / Pool Waterfall 3way' On

What you could do (psuedo code)
program 1
If sump pump activated 
Then:
  Send notification
   Run program 2
 
Program 2
(No if)
Then
   Disable program 1
   Wait 1 hour
   Enable program 1
 
  

Guessing "no". The forums indicate that they haven't logged in since August 14, 2022. 

It will take to statements to get the total in the variable:
$TempGradient = $inside temp
$TempGradient -= $outside temp
The -= means subtract $outside temp from $Tempgradient.
$Tempgradient has to be a state variable, as is any variable that is used in an If statement

To keep it simple, would you consider email > email?  My guess is that most mobile providers are headed down the path of no more email > text
One way would be to set up a separate email account just for this purpose and make sure it can send priority notifications on the phone.
That way, the eisy notifications won't get lost in her regular emails, and as a new account just for this purpose shouldn't see spam. The ios email client allows for an manages multiple mailboxes within the app. 

The notification plugin is recommended with 2 ways to go based on how complex your notification needs are:
You can start with the free versions and have notifications come through UD Mobile. The UD Mobile template is the first on the list and handles simple messages... simply.
  If that doesn't fit your need, you can upgrade to the pay for version of the notification plugin and send notifications through notification plugins through the pushover app. You'll have to touch up all of your notification programs, shouldn't be too bad and you can likely use your existing notifications with variable substitution

You'll want to read through the notification section of the forums to see some examples

Yes, this is now how it works. Static IP addressing is a support headache for UDI when routers are switched out and the local NAT subnet changes.
The right way to do it is log into you router and use DHCP address assignment. It will give you a consistent IP address, owned by the router's DHCP.

Ok, you'll need 2 programs
<Program 1> Computer Cabinet once an hour
If
   <no statement>

Then
   Repeat every 1 hour
        Run If Program Computer cabinet

<Program 2> Computer Cabinet
    <your current program>

Notes:
Set the first program to run on start up Disable program 2 so it does not run automatically What this will do is the the ISY will run program 1 when its started Program 1 will run once an hour Program one will call program 2 Program 2 is disabled so it will only run when program 1 calls it