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Unable to install Add-on
Forum: Comfort with Home Assistant
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Comfigurator 4.0.x
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Inconsistent Behaviour
Forum: Comfort with Home Assistant
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Random Communication Fail...
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Comfort Server Manager & ...
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Cancelling dial-outs afte...
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What SMTP servers do peop...
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8.030 not upgrading
Forum: Firmware Upgrading Problems
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Comfort GSM not answering...
Forum: GSM Module
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12-31-2025, 10:49 AM
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Comfort Forums has been m...
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| Home Assistant Remote Access using DuckDNS and LetsEncrypt |
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Posted by: slychiu - 04-24-2025, 02:11 AM - Forum: Comfort with Home Assistant
- Replies (1)
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This is a guide to setting up encrypted remote access using DuckDns and Lets encrypt to secure the connection. This content is mainly from https://smarthomeaddict.co.uk/2022/07/ho...tsencrypt/ which is one of the best guides.
Why this method? - Itâs a quick and relatively easy way to get remote access to Home Assistant.
- It provides an SSL certificate to keep your connection secure.
Some downsides- There is a need to open up a port in your router to forward the port.
- Internal access will now report a certificate error, but you can safely ignore this
First Go to DuckDNS.org. Sign in or create an account. Create a domain with the name of your choice, it will end in duckdns.org. Click Add Domain.

The domain will then appear below. To link your account with the addon, select and copy the string in the token field. Donât give anybody this token, as itâs a security risk to share it.
Next Install the DuckDNS addon. Go to Settings, Addons and then click on Addon Store. Click DuckDNS. Click Install. Once itâs installed, enable the watchdog and go to the Configuration tab. As you can see, we need some information to add to the config.

add the duckdns URL in the domains box eg xxxx.duckdns.org You should see the same URL above the Domains box with an X.
Warning - you may see another X on the left. Press X to delete this blank domainotherwise the add on will not work. This caused me a lot of time to sort it out
Also when you copy and paste the token from the duckdns page, check that there are no spaces in the front of the token. By default the token is copied with one or more spaces.
In the Letâs Encrypt section, change false in accept terms to true in order to allow the addon to request an SSL certificate. Finally click Save.
We now need to let Home Assistant know itâs using an SSL certificate. To do this, edit the configuration.yaml file and add an http section, then add the following two lines.
http:
ssl_certificate: /ssl/fullchain.pem
ssl_key: /ssl/privkey.pem
Click Save.
Click Developer Tools, and check config. If there are any errors correct them â If all is well click Restart.
Next forward forward a port in your router to allow traffic through so that you can access your Home Assistant instance from the Internet.
Go to your router IP address.
- Forward port 8123 to internal Port 8123. Protocol is TCP
- Forward port 443 to internal Port 8123. Protocol is TCP
As weâre using an SSL certificate, weâll be using https. This means that the traffic between your browser or mobile and Home Assistant is encrypted, so nobody can intercept or see what you are doing. The standard port for https is port 443, however Home Assistant is on port 8123.
When you go back to Home Assistant, eg http://homeassistant-local:8123 you will get an error. This is because youâve turned on SSL, so we need to change the URL slightly to use https instead of http, ie https://homeassistant-local:8123
Once you do this, youâll get a warning that your connection is not private as weâre using the IP address. It is safe to ignore this as this is inside your network. Click Advanced, and then the Proceed link. Home Assistant will now display and you can use this as normal.
From a browser outside the home network, enter your DuckDNS url that you set up, ensuring you precede this with https:. eg https://mydomain.duckdns You do not need port 8123
Log in using your normal credentials. Once logged in, you can then operate home assistant as if you were browsing from your home network.
You can use the remote access domain eg https://mydomain.duckdns even within your home network so you do not need to use the local IP address.
Warning: as local access now requires https, theHone assistant Voice Preview dition may not be able to connect as it requires http access
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| FF not arming to vacation mode |
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Posted by: gsnottingham - 04-07-2025, 11:01 AM - Forum: Arming and Disarming
- Replies (6)
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I recently updated my firmware to the current version from quite an old version and also installed a GSM module.
We always had the system programmed so that when we pressed the lock symbol the alarm would bypass the garage sensors and then set to away mode. We could then access the garage on our way out of the house.
If we were going out and wanted the whole house including the garage to be alarmed then we pressed \'FF\' and the system was set to vacation mode.
Since my recent upgrade, pressing FF does not do anything. We can only set to vacation mode by using the GSM module.
Is there now a different way to set to vacation mode that I have missed?
Thanks
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| comms Problem SEM01 |
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Posted by: johnrf - 03-27-2025, 04:59 AM - Forum: Expansion Modules
- Replies (1)
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Hi, I upgraded to the latest version and lost my SEM01. I was asked to download the older version to see what happened, and that seems to have fixed the lost SEM01. Everything seems OK, but on a restart of the system (power Reset), I get a comms failure on SEM01. This clears when I log in on the keyboard or do a module scan through Comfigurator. and states \'communications restored\' I have also communications error 33 restored. when the communications is in fault mode non of the inputs are working in SEM1
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| Coms failure after upgrage to 8.021 |
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Posted by: johnrf - 03-23-2025, 01:33 AM - Forum: Slave Firmware
- Replies (9)
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Hi Chiu, I am having a few problems with my system after doing some upgrades. I have lost coms with my slave 01 after doing the upgrade. All I did was checked each module for updates and di them.
The last one was slave 1 and it upgraded to version 8.021 and when it rebooted at the end it states coms failure to slave 1 and of course I have no inputs from that point on.
I have re done the upgrade and all seems to work but I still have no coms to the at sem
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| Clock 1 day ahead |
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Posted by: on4cet - 03-21-2025, 09:54 AM - Forum: Firmware Upgrading Problems
- Replies (6)
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Hi,
I already tried to use another ntp server pool to automatically correct the time from the UCM to the Comfort system, but since months the clock goes wrong after a few days. The time is exactly correct, but the day always differs 1 day. So when we are friday, comfort is already at saturday.
I maybe could uncheck the setting to automatically correct the time from ntp servers, but that also means that clock drift etc... may encounter after some time.
Anyone experience with this odd behaviour ?
Kind Regards,
Bart
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