Que on icomfort (Lennox) connection with smartthing -
I tried the code from github, installed app on on the phone. Entered the USername and Password on the screen and Im getting a blank screen. Looked into the logs and I see following error.
error javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target @ line 255
Yes it works but this is a temporary resolution as the run scope account only last 15 days without spending $79 a month for a paid account. I am not a programer by trade and not sure how to resolve the underlying issue of either SmartThings or Lenox not allowing communication between the two sites. Is there something in the Runsope.com feeds that would help in determining which site is blocking this application from working without a runscope.com routing?
Iāll do the same. Iām wondering if this is the same type of issue related to their API integration with the Netatmo system. I reported that a few weeks ago and was told their engineers are working on it.
Response from ST support was their standard answer when dealing with non-ST apps. āAs this is not an official Works With SmartThings device, there is nothing on our end that would have changed to cause your issue.ā So now I will be losing integration of my climate control into ST. The research I have done on-line all suggest that the Lenox system does not work well with other thermostats that might be ST compatible. I had even asked the installer if I could keep the Nest that I had when I updated my system in 2015 and he said the Nest does not work with Lenox units.
yes the lennox t-stat is a communication device, so it speaks a digital language to your components where as most thermostats speak analog. The digital language is proprietary of courseā¦
That said, Iām pretty sure this is a problem with ST - since the api server works fine unless the traffic is from ST. I suppose its possible Lennox has blocked the ST server, but somehow I doubt it given it is a cloud hosted solutionā¦
Just to let you all know I also am saddened by the recent disconnect and the issues discussed. It was nice having my Lennox integrated with STā¦particularly setting temperature on departure and return. I know it is outside of my capability to fix; however, you have all my support and appreciation for working on this.
I also would like to see this working again. I was thinking about creating a web page on a domain I have that would be a relay like the runscope account. I have written a few pages in PHP in the past, and a PHP page could maybe be used to create something that line 517 would call and in turn call the Lennox page.
I put a ticket into support and got the same response. We donāt support custom device handlers and they suggested I reach out directly to the community as well. What I was really looking for was insight here on the error I received to determine if this is a SmartThings issue where it cannot format the HTTPPut into the format that Lennox is looking for or is it really a certificate thing that has changed as @cwaddell suggested. The exception response seems to corroborate his assumption:
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
Trying to do some research on this error but it doesnāt seem to have a clear solution as not always clear on if it is a issue on Client or Server side of the request. Is anyone sure if this is a Lennox vs SmartThings issue?
@cwaddell: You indicated you put a ticket in with the Dev Group: Any feedback on this? I didnāt see anything posted in the community Dev group about this. @tslagle13 is this something you can ask/confirm with a developer to get a clear statement on if this is a SmartThings side issue or a Lennox issue? If Lennox has blocked the SmartThings IPs/servers (which in my experience with BloomSky was resulting in a too many requests response), then can SmartThings ask Lennox to clear this? If it is a SmartThings issue, is there someone on the SmartThings side that can look at this as Support has basically washed their hands of this so far.
If anyone finds a free solution like runscape please share. I am almost to the point of paying someone to code one for me. I have noticed that the app responds so much faster going through runscope than it did before this issue arose. Iām in Texas and it is not fun coming home to a house where the heat was on all day and the temps outside is 70 degrees after being 40 at night. So I am not able to use the Lenox schedule to attempt at some sort of automation.
Instead of Runscope, try APIGee. It should be free. Iām not too sure if this will definitely work because I donāt own a Lennox anymore. Give it a try and let me know.
Do you know how Alexa can work with this app. I tried multiple ways and it seems like im failing to ask her to change the temprature or to change the program.
@copyninja: If the above works as noted by @aryaclid by using apigee.com services, what is the root cause of this issue? Is Lennox blocking the SmartThing Servers? If yes, is there any chance SmartThings can talk to Lennox to get it unblocked? Would rather not have to make another hop through apigee and just have SmartThings be able to go direct to Lennox.
Lennox is not blocking SmartThings Servers nor reducing QoS. What most likely happened is Lennox changed/renewed their HTTPS SSL certificate, and SmartThings didnāt automatically update their SSL certs. I maybe wrong, since Iām not too well versed with Java.
You can try raising support ticket, but I highly doubt that support would acknowledge that this is a SmartThings issue. Either that they will brush it off since this is a unofficial third party integration, which will never get any priority when it comes to fixing it. Iād say youāre better off using apigee for now.
Any volunteer interested with integrating S30, PM me. I just wanted to check if Lennox reused their S20 apiāsā¦ So iāll need an account to a working S30.
