IP conflict Airconditioning and Virtual Machine manager Synology Home Assistant app

Helo,

Since 3-4 weeks I have 2 panasonic airconditionings installed. Both are integrated in home assistant and set up the wifi connection with the “comfort app” of panasonic. Everything is working as it should.
Since the installation of the airconditionings i had sometimes that the Home assistant App couldn’t not connect. Also on the computer it wasn’t connecting either. To solve this I must restart the VM manager on my synology and then everything works fine.
Today I was looking for a solution because it happend again. I didn’t restart the VM manager but opened the wireless acces point and the router to take a look on the IP addresses. I see that 1 of the aircondintioning has the same IP address of the Home Assistant installed on the VM manager and this will be the problem! The Home Assistant installed on the VM manager gets another IP address to and that’s why i couldn’t reach the addres with the home assistant app. The solution is easy but I can’t find where I can change the IP address of the airconditionings to a static one and i have been looking to change the IP of the VM manager to but here I can’t either find this.
Looked on google but nothing… For the moment I blocked the 2 airco’s on the router.

Hopefully somebody could help me out with this.

best regards
Andries

Not all devices support settiong up static IP directly on the device itself. For HA you can assign static IT going to Supervisor → System tab → Host card → IP address - CHANGE.
For other devices perhaps the solution would be to bind IP to MAC on the router itself. It might be called differently (IP reservation, assigning static IP, IP binding) depending on the router manufacturer…
BTW, in each scenario, even if IP is assigned directly on the device, I also make reservations on the router, just to keep list of used IPs up to date.

Ok thx for the reply.
The HA i will assing the static IP.
For the router i must check this but i am not sure that i can do this…

Set static IP address in the router

This is usually easiest method since you may set and manage all static up in one place

You will likely need to restart/power off>>on devices for new IP to take affect

Since not all router have functionality of IP binding, it indeed might be tricky. However all router have DHCP server functionality and frequently it is somehow configurable (starting IP and range of assignable IPs, for example). IP addresses are always assigned by router from the lowest availble. So you can also play with this:

  • Assign IP to HA in range below starting point of DHCP range
  • Assign IP to HA at the very end of your subnet, so changes that IP assigned by DHCP will reach this IP and cause conflict are negligible

HA is done and changed to static.
For the router… it isn’t possible. This is a router from the provider with just same standard configurations. The option ‘static’ is for business proposal and to be paid.
For now it works and will buy Unifi Security gateway since a have here Unifi Acces points…

Thx alot for the advice!

regards

Hm… this is strange… I’ve never seen router without possibility to at least confiure some DHCP options (subnet, starting IP and number of IPs withing dynamic range), though assigning static IPs on LAN side might be optional.
Are you sure that this static IP option, you mentioned, is related to LAN configuration? It is common practice that ISP charges extra or limit an option of static WAN IP for sort of business plans, but dynamic WAN IP should not be a problem. Again I’ve never seen that they would charge for static IPs on LAN…

I am pretty sure that i cannot assign a static ip. In the expert mode i only can change the ip starting nr and some ipv4 and 6 settings some mac adress recognition and will do…
If i search on the web for this providers router it is noted that static ip has been moved to busines. Before it was standard for everyone now its not.
With my unifi acces point i can setup static ip adres but for this i need the extra router from unifi that must been connected after the providers router.

Shame, we are in 21st century and ISPs still apply some stupid limitations, that prohibits creative people from using systems to their full potential.
So, indeed having your own router is indeed way to go. I myself use also my own router and keep one provided by ISP as gateway only, even if some of required functionality could be implemented using this one… but not all of what I want :slight_smile: