https://www.comfortforums.com/ Mon, 27 Jul 2026 19:18:23 +0000 MyBB https://www.comfortforums.com/thread-5824.html Sat, 10 Jan 2026 05:48:49 -0500 philcolley]]> https://www.comfortforums.com/thread-5824.html
I have recently upgraded my home network to use the Unifi products and as part of this I have created separate VLANs with appropriate firewall rules for all my various devices ("Secure". "IOT", "Camera", "Guest" etc)

After I moved my two comfort ETH03 to the new IOT VLAN I can no longer access them with the Server Manager software. They are defiantly on the correct VLAN because the switch port enforces the VLAN and IP address. I can access both systems with the app through those IP addresses.

My main PC with "Configurator" is on the "Secure" VLAN so I have also tried a laptop which I can easily connect to the IOT VLAN so its the same as the ETH03 but it still wont see them. I have even changed the configuration of the IOT into the "Trusted Group" so there are no firewall rules interfering but still no good. I have checked the Firewall log and cant see anything about it being blocked. Have added Server Manager as an allowed app to the Windows Firewall.

I have seen mentioned of using Wireshark to look for packets but it appears you need to be an expert to know the filters etc necessary.

Any suggestions?
Phil]]>
I have recently upgraded my home network to use the Unifi products and as part of this I have created separate VLANs with appropriate firewall rules for all my various devices ("Secure". "IOT", "Camera", "Guest" etc)

After I moved my two comfort ETH03 to the new IOT VLAN I can no longer access them with the Server Manager software. They are defiantly on the correct VLAN because the switch port enforces the VLAN and IP address. I can access both systems with the app through those IP addresses.

My main PC with "Configurator" is on the "Secure" VLAN so I have also tried a laptop which I can easily connect to the IOT VLAN so its the same as the ETH03 but it still wont see them. I have even changed the configuration of the IOT into the "Trusted Group" so there are no firewall rules interfering but still no good. I have checked the Firewall log and cant see anything about it being blocked. Have added Server Manager as an allowed app to the Windows Firewall.

I have seen mentioned of using Wireshark to look for packets but it appears you need to be an expert to know the filters etc necessary.

Any suggestions?
Phil]]> https://www.comfortforums.com/thread-5806.html Tue, 07 Oct 2025 00:10:12 -0400 slychiu]]> https://www.comfortforums.com/thread-5806.html
Comfort server manager  will  transmit  a  broadcast UDP  packet to the 1st network adaptor  containing  the message, "Discovery: Who is out there?" on the local network to port 30303. If any ETH03s are  connected  to  the  network,  they  will  respond  with  a  UDP  packet  containing  their  host name and MAC address and IP address  If there are more than 1 network adaptors in the PC, the UDP message may be sent to the wrong network adaptor. Note that Managed switches and Routers may also block port 30303 thus preventing discovery

To fix this you can prioritise the network adaptor used by Comfort Server manager to send the UDP discovery.

go to Control Panel. Select Network and Internet > Network and Sharing centre

you will see your network adaptor in the screen.




click on Change Adaptor settings on the left

 

right click on your  networkk adaptor, eg Wifi in my case and select Properties


In properties look for Internet Protocol 4 (TCP/IPv4)


 

select Advanced 
There is a box called Automatic Metric which  is checked ie selected by tick
Uncheck it and enter  1 in Interface Metric

 


Press OK
This will ensure that the network adaptor is selected first when Comffort Server Manager looks for the IP address of ETh03]]>
Comfort server manager  will  transmit  a  broadcast UDP  packet to the 1st network adaptor  containing  the message, "Discovery: Who is out there?" on the local network to port 30303. If any ETH03s are  connected  to  the  network,  they  will  respond  with  a  UDP  packet  containing  their  host name and MAC address and IP address  If there are more than 1 network adaptors in the PC, the UDP message may be sent to the wrong network adaptor. Note that Managed switches and Routers may also block port 30303 thus preventing discovery

To fix this you can prioritise the network adaptor used by Comfort Server manager to send the UDP discovery.

go to Control Panel. Select Network and Internet > Network and Sharing centre

you will see your network adaptor in the screen.




click on Change Adaptor settings on the left

 

right click on your  networkk adaptor, eg Wifi in my case and select Properties


In properties look for Internet Protocol 4 (TCP/IPv4)


 

select Advanced 
There is a box called Automatic Metric which  is checked ie selected by tick
Uncheck it and enter  1 in Interface Metric

 


Press OK
This will ensure that the network adaptor is selected first when Comffort Server Manager looks for the IP address of ETh03]]> https://www.comfortforums.com/thread-5655.html Fri, 01 Aug 2025 06:39:20 -0400 Krobar]]> https://www.comfortforums.com/thread-5655.html https://www.comfortforums.com/thread-5652.html Mon, 07 Jul 2025 09:15:14 -0400 darnold]]> https://www.comfortforums.com/thread-5652.html
1) Can I simply install the ETH03 module on the existing UCM board that currently hosts the ETH02 module?
2) Since I use the ETH02 board to access the system via Configurator is there a way to upgrade it over the network or do I need to connect to the Comfort alarm via a serial connection in order to configure the ETH03 module?

Thanks.]]>
1) Can I simply install the ETH03 module on the existing UCM board that currently hosts the ETH02 module?
2) Since I use the ETH02 board to access the system via Configurator is there a way to upgrade it over the network or do I need to connect to the Comfort alarm via a serial connection in order to configure the ETH03 module?

Thanks.]]> https://www.comfortforums.com/thread-5613.html Thu, 27 Feb 2025 08:58:03 -0500 ]]> https://www.comfortforums.com/thread-5613.html The first of which is connection issues to The ETH3
I have had issues when connecting via the iPhone app in that as I am trying to either or disarm it will quite often comes up with Dismiss or Login again.
I went into Server manager to see if I could resolve the issue and have found I cannot edit any of the info and the following items in Server manager are flashing rapidly.
Any ideas on what can be causing this?

  Comfort ETH3.jpg (Size: 107.62 KB / Downloads: 39) ]]> The first of which is connection issues to The ETH3
I have had issues when connecting via the iPhone app in that as I am trying to either or disarm it will quite often comes up with Dismiss or Login again.
I went into Server manager to see if I could resolve the issue and have found I cannot edit any of the info and the following items in Server manager are flashing rapidly.
Any ideas on what can be causing this?

  Comfort ETH3.jpg (Size: 107.62 KB / Downloads: 39) ]]> https://www.comfortforums.com/thread-5470.html Thu, 08 Feb 2024 20:48:17 -0500 ]]> https://www.comfortforums.com/thread-5470.html
Your router should support the ddns service. You will get a user name and password to log in to the service. As an example, see below




Other routers will have different menus to set this up.
Next, set up Port Forwarding on the router as shown in the example below. You need to map the internet Port to the Local IP Address and Port



Again, different routers will have different menus to set this up.  When this is done you can use the dynamic IP address eg user.ddns.net as the remote IP address in Comfigurator or the Cytech Mobile app







]]>
Your router should support the ddns service. You will get a user name and password to log in to the service. As an example, see below




Other routers will have different menus to set this up.
Next, set up Port Forwarding on the router as shown in the example below. You need to map the internet Port to the Local IP Address and Port



Again, different routers will have different menus to set this up.  When this is done you can use the dynamic IP address eg user.ddns.net as the remote IP address in Comfigurator or the Cytech Mobile app







]]> https://www.comfortforums.com/thread-5464.html Fri, 12 Jan 2024 23:36:18 -0500 ]]> https://www.comfortforums.com/thread-5464.html SNTP  Setting

Check that the local time is correct. Select one of the servers in the NTP Server Pool. These are a list of International NTP servers that provide the local time adjusted for Daylight saving where applicable

The NTP Synchronize Interval is the interval for the updating of time to Comfort. 60 minutes is the recommended interval athough you can set a shorter time for testing.
If the time difference is less than 4 seconds, the Comfort time is updated but  is not recorded in the event log.
\"Send Time to Comfort\" should be checked if the time should be sent to Comfort.
Leave it unchecked if you do not want to update Comfort Time.
Comfort will correct for any Daylight saving Time adjustments based on the Sunrise/Sunset times settings so it is important to get the setting to the correct location.

]]> SNTP  Setting

Check that the local time is correct. Select one of the servers in the NTP Server Pool. These are a list of International NTP servers that provide the local time adjusted for Daylight saving where applicable

The NTP Synchronize Interval is the interval for the updating of time to Comfort. 60 minutes is the recommended interval athough you can set a shorter time for testing.
If the time difference is less than 4 seconds, the Comfort time is updated but  is not recorded in the event log.
\"Send Time to Comfort\" should be checked if the time should be sent to Comfort.
Leave it unchecked if you do not want to update Comfort Time.
Comfort will correct for any Daylight saving Time adjustments based on the Sunrise/Sunset times settings so it is important to get the setting to the correct location.

]]> https://www.comfortforums.com/thread-5446.html Fri, 13 Oct 2023 10:15:38 -0400 ]]> https://www.comfortforums.com/thread-5446.html I have several pieces of kit that issue transactional emails (Acronis backup, UPS, network monitor) and for these I use the google server gmail-smtp-in.l.google.com:25 which does not require authentication (no user name or password) if the sender and recipient have gmail addresses and the mail volume is low. This works flawless for these devices but not for Comfort mail server. Since there is no feedback from the server on errors I have no idea where this is failing. The whole email process is getting more complicated as security increases.
I have fallen back to SMTP2Go as recommended and though they have tightened usage on their free account and you need to verify the sending address - it works.
Any other methods out there ?

]]> I have several pieces of kit that issue transactional emails (Acronis backup, UPS, network monitor) and for these I use the google server gmail-smtp-in.l.google.com:25 which does not require authentication (no user name or password) if the sender and recipient have gmail addresses and the mail volume is low. This works flawless for these devices but not for Comfort mail server. Since there is no feedback from the server on errors I have no idea where this is failing. The whole email process is getting more complicated as security increases.
I have fallen back to SMTP2Go as recommended and though they have tightened usage on their free account and you need to verify the sending address - it works.
Any other methods out there ?

]]> https://www.comfortforums.com/thread-5437.html Sun, 03 Sep 2023 06:27:13 -0400 ]]> https://www.comfortforums.com/thread-5437.html The upgrade seemed to go OK, but the device is no longer responding. If I do a scan for modules I get \"Module scan timed out. Please retry the scan later.\" Also, the Comfort Server Manager (ETH03) does not find the module.

I tried resetting the ETH03 module and that didn\'t work and I also tried uploading the previous firmware. It seemed to go OK but the version shown didn\'t change and I\'m still getting timeouts.
Any ideas?
]]> The upgrade seemed to go OK, but the device is no longer responding. If I do a scan for modules I get \"Module scan timed out. Please retry the scan later.\" Also, the Comfort Server Manager (ETH03) does not find the module.

I tried resetting the ETH03 module and that didn\'t work and I also tried uploading the previous firmware. It seemed to go OK but the version shown didn\'t change and I\'m still getting timeouts.
Any ideas?
]]> https://www.comfortforums.com/thread-5298.html Sun, 04 Apr 2021 09:13:08 -0400 ]]> https://www.comfortforums.com/thread-5298.html Then I saw the UCM/ETH03 was not on the latest firmware and updated the firmware. The update completed (or so it seem), and asked me if it should scan the components again. I selected yes and then it required the sign-on password again. From this point onwards I was not able to login. It constantly replies with the message to go the UCM connection settings.
I\'ve also seen a comment on the forum where someone had a similar problem after an upgrade of the firmware and then had to downgrade the firmware on the ETH03 component to connect again. I have tried that, but no difference.  
Is there a way to reset the UCM board back to factory settings, so that one can start the install process again? ]]> Then I saw the UCM/ETH03 was not on the latest firmware and updated the firmware. The update completed (or so it seem), and asked me if it should scan the components again. I selected yes and then it required the sign-on password again. From this point onwards I was not able to login. It constantly replies with the message to go the UCM connection settings.
I\'ve also seen a comment on the forum where someone had a similar problem after an upgrade of the firmware and then had to downgrade the firmware on the ETH03 component to connect again. I have tried that, but no difference.  
Is there a way to reset the UCM board back to factory settings, so that one can start the install process again? ]]> https://www.comfortforums.com/thread-5292.html Tue, 02 Mar 2021 17:26:42 -0500 ]]> https://www.comfortforums.com/thread-5292.html My ETH03 has 2 ports configured 1001 and 1002.
I usually use the first one for Comfigurator and I\'ve recently been testing a separate Comfort->MQTT Bridge connecting to the port too.
I had forgotten there was a second port and I\'ve now proved I can connect both at the same time - e.g. Comfigurator to 1001, and my MQTTBridge to 1002.
However, my bridge also seems to see messages to/from Comfigurator, so I assume the Comfort connection is more of a bus than an individual point-to-point connection?
So... can I assume it would NOT be safe to use Comfigurator to do any programming if my module was also connected and active? i.e. I should only have 1 device connected to Comfort via ETH03 when programming?
Thanks]]> My ETH03 has 2 ports configured 1001 and 1002.
I usually use the first one for Comfigurator and I\'ve recently been testing a separate Comfort->MQTT Bridge connecting to the port too.
I had forgotten there was a second port and I\'ve now proved I can connect both at the same time - e.g. Comfigurator to 1001, and my MQTTBridge to 1002.
However, my bridge also seems to see messages to/from Comfigurator, so I assume the Comfort connection is more of a bus than an individual point-to-point connection?
So... can I assume it would NOT be safe to use Comfigurator to do any programming if my module was also connected and active? i.e. I should only have 1 device connected to Comfort via ETH03 when programming?
Thanks]]> https://www.comfortforums.com/thread-5241.html Thu, 22 Oct 2020 14:22:23 -0400 ]]> https://www.comfortforums.com/thread-5241.html What I\'m seeing is it won\'t connect to the network, as in the network switch sees no link. It\'s running 7.117 according to Comfigurator.
If I press and hold SW1, after 2 seconds the Eth02 springs to life and the link indicator on the switch shows it\'s connected. As soon as I release SW1, it drops.


I tried this by holding SW1 for 7 seconds whilst powering the UCM back up by reconnecting the RS4 cable, same issue http://www.comfortforums.com/forum119/3522.html
If I stand there, hold down SW1, DSManager does see the Eth02 on the network and you can access it. As soon as SW1 is released, it\'s gone again.

Any ideas as to where I\'m going wrong?
Thanks

  uucm copy.jpg (Size: 225 KB / Downloads: 17) ]]> What I\'m seeing is it won\'t connect to the network, as in the network switch sees no link. It\'s running 7.117 according to Comfigurator.
If I press and hold SW1, after 2 seconds the Eth02 springs to life and the link indicator on the switch shows it\'s connected. As soon as I release SW1, it drops.


I tried this by holding SW1 for 7 seconds whilst powering the UCM back up by reconnecting the RS4 cable, same issue http://www.comfortforums.com/forum119/3522.html
If I stand there, hold down SW1, DSManager does see the Eth02 on the network and you can access it. As soon as SW1 is released, it\'s gone again.

Any ideas as to where I\'m going wrong?
Thanks

  uucm copy.jpg (Size: 225 KB / Downloads: 17) ]]> https://www.comfortforums.com/thread-5207.html Fri, 07 Aug 2020 11:34:37 -0400 ]]> https://www.comfortforums.com/thread-5207.html https://www.comfortforums.com/thread-5198.html Tue, 14 Jul 2020 13:58:34 -0400 ]]> https://www.comfortforums.com/thread-5198.html https://www.comfortforums.com/thread-5168.html Sun, 03 May 2020 00:52:04 -0400 ]]> https://www.comfortforums.com/thread-5168.html VERY occasional. Over the last few years, I have \'lost\' the ability to see the ethernet module on my home network a couple of times. Quite randomly! Of course, this means I cannot use Comfigurator to access my Comfort system. It is definitely not a \'level 1\' (wiring) problem! For some unknown and unexplained reason, my ETH03 module just appears to hang and so can\'t be accessed. No IP address; can\'t be \'pinged\' etc. I can fix it - relatively easily - by switching the power off to the panel; removing the cover and disconnecting the battery.  :X  When I reapply power, everything is fine again, and it just works - exactly as expected. So, my question is - is there any programmable method using engineer mode from a phone or the keypad (both of which continue to work, of course) by which I can \'reset\' the ethernet module. This would be far easier and much more convenient than the power-off; panel access etc method. BTW, this doesn\'t seem to be a firmware function, either, since it has occurred with a few different firmware variants installed. Many thanks for any comments!
]]> VERY occasional. Over the last few years, I have \'lost\' the ability to see the ethernet module on my home network a couple of times. Quite randomly! Of course, this means I cannot use Comfigurator to access my Comfort system. It is definitely not a \'level 1\' (wiring) problem! For some unknown and unexplained reason, my ETH03 module just appears to hang and so can\'t be accessed. No IP address; can\'t be \'pinged\' etc. I can fix it - relatively easily - by switching the power off to the panel; removing the cover and disconnecting the battery.  :X  When I reapply power, everything is fine again, and it just works - exactly as expected. So, my question is - is there any programmable method using engineer mode from a phone or the keypad (both of which continue to work, of course) by which I can \'reset\' the ethernet module. This would be far easier and much more convenient than the power-off; panel access etc method. BTW, this doesn\'t seem to be a firmware function, either, since it has occurred with a few different firmware variants installed. Many thanks for any comments!
]]>