I can't Connect all my devices to HA

[aceindy]

@Maku

So you mean to skip the switch that locate in the basement and make netgear router as a main router instead of the switch with dchp enable, and the other two or three low end routers as an access point with dchp disable, right?

Euh, something like that yes, normally the ‘main’ router would also be your internet gateway.
It normally act as DHCP and DNS server, but that is not required (it could also be on any other device; f.e HA can also be a DHCP/DNS server, which makes sense especially if you want to set up https )

PS: it is preferable to hardwire (if possible) your access-points, it is faster then wifi only

[aceindy]

@stevemann

well under the 255 IP limit of a standard IPV4 DHCP server.

I wouldn’t say 255 is the limit, but yeah, many have that as default

(although the last router provided by my ISP did have a 255 limit, the netmask could not be changed, so i had to replace it with my own )

[k8gg]

@Maku

HA ip is a static ip 10.6.0.112 connected to router 1,

Router 1 netgear r7000
Router 2&3 tp link n450

They get ip from the powerbeam m5,

@Maku

router1 ip: 10.6.0.1
router2 ip: 10.6.0.2
router3 ip: 10.6.0.3

@Maku

The three routers WLan connected to switch and switch connected to internet

Is the “switch” here the powerbeam m5? Or is there another device sitting between your powerbeam and your 3 routers? What do you mean by “WLan connected” – are they all ethernet cable connected and if yes / if not how?

Powerbeam m5 is a building to building disc antenna pair setup, and you said the switch connected to internet. I suppose the switch would connect to some cable modem or fiber optics ONT or something?

You said powerbeam is providing IPs to 3 routers. So is powerbeam m5 providing DHCP service? Based on the four IPs you have provided, is it really that router 1 is providing DHCP service? Is it really r7000 and N450 acting as DHCP servers also? Or your HAOS getting IP from the powerbeam m5 also?

Also you have not answered this:

@k8gg

IP of those other devices that are connected to router 2&3…?

Again, not enough information. But I think we are getting close.

====
For reference: quick googling indicated that netgear r7000 has a DHCP reservation limit of 64.
(… but then… your r7000 is getting IP from Unifi powerbeam, and then your HAOS is getting IP in the same range of your r7000. I guess there’s something else we do not know just yet.)

And, Maku, I believe TP-Link has maybe a dozen of routers over the years all advertising at N450 grade - you can do a quick google image search and see they come in different shapes and sizes. Which model are yours?

[aceindy]

@sparkydave

Although many routers (ie: the cheapo ones that ISP’s hand out) can’t handle that many clients from a hardware perspective.

It is not the amount of clients which is a limiting factor, it just comes down to throughput MB/s.

I have a d-link capable of handling 200+ clients (maybe more but never tried), it was until i upgraded my internet to 1Gb/s i found out it couldn’t handle speeds above 250 Mb/s

I still use it as acces-point though… just added another gateway router (without wifi)

[exx]

There’s a distinct difference between throughput limitations and the number of clients an AP can service. Most IoT devices (lightswitches, bulbs, garage door openers, outlets, etc) require VERY little bandwidth, and there’s no reason you couldn’t have several hundred on a single AP.

OTOH, if bandwidth is a concern, you could very easily overrun most consumer-grade WiFi equipment with 3-4 TVs streaming 4k content at the same time…

Most times throughput is limited by CPU speeds in the edge device. Even enterprise-class gear has limitations that vary by model. This is done so that hardware can be appropriately sized to match the customer’s internet connection speed without overbuying capacity they don’t need. Sure, Cisco could make only one model of firewall that could handle 10gig wire speeds, but nobody with a 200meg connection would want to spend that kind of money.

The CPU speed limitation is also why speeds decrease on firewalls as more features are enabled - IDS/IPS/DPI/etc. The more processing that needs to be performed on the traffic, the more the hardware is taxed, and diminished throughput is the natural result.

Back to OP’s question - it appears you are describing a network with three wireless AP/NAT devices, each with a separate network behind them. Your goal is to have devices auto-discovered by HA? The only way that happens is if you dismantle two of the networks. Network discovery relies on broadcast traffic, and broadcast traffic does not cross subnet boundaries. Since you have created 3 separate subnets, HA will only ever autodiscover the devices on it’s local network.

Can you tell us the purpose for having three different wireless AP/NAT devices? 60 devices is not really that many. I have well over 100 WiFi connected devices here…

In short - the issue you are facing is not a lack of understanding of HA, it’s a lack of understanding of basic networking.

[Maku (Maku esem)]

thank you all guys,
i skipped the switch by replacing it with router as a main router, other routers set as an access points, now i can reach HA from any point in the house and add all my devices regardless which router my phone or device connected with,

I raelly appreciate your help and concern.