GS324TP S350 unable to obtain IP from unifi USG3 and UAP-AC-PRO

Hello everyone, I have been trying to configure multiple vlans to be accessible on my unifi AP. I read similar post where people indicated they were successful, however I have not been lucky enough to be successful. Here is my harware info. I will appreciate if anyone can help me troubleshot/setup. thanks in advance.

1 Unifi USG-3

1 UAP-AC-PRO

1 netgear GS324TP S350

USG3 port1 ---> netgear GS324TP Port1

UAP-AC-PRO ---> netgear GS324TP Port5

USG3 network and wireless config

Networking

internetofthings VLAN10 172.16.10.1/24

SecurityCam VLAN20 172.16.20.1/24

VLAN1 192.168.2.1/24

Wireless Networks (inherit the above network IP)

internetofthings ---> internetofthings network

SecurityCam ---> SecurityCam network.

Netgeat GS324TP

Port 1. Untaged VLAN ID 1 / Taged VLAN ID 10 and 20

Port 5. Untaged VLAN ID 1 / Taged VLAN ID 10 and 20

Port 1 to 26 : untaged VLAN ID 1

The access point is able to see the device attemtping to connect, but it is unable to obtain IP address. I am sharin couple screen capture for reference.

11 Replies

jleon71
Aspirant
Apr 05, 2021
Pictures did not appear on the first post.
- schumaku
  Guru - Experienced User
  Apr 06, 2021
  jleon71
  
  Based on the NetgearGS324TP-VLANPVIDPORT.png and assuming USG and AP are connected to the two ports configured accordingly, there isn't anything wrong with your VLAN config. Back to the UniFi config I'd say...
  
  PS. The in-line images are under mandatory moderation, so it will take a while until visible.
DietmarItsMe
Aspirant
Jul 08, 2021
Hi Jelon71,

I have a very similar problem using a Unify Dream Machine and a GS348T switch + a Unify U6-Lite AP.
The AP plugged into the Unify Dream Machine works perfect, when I plug it into my switch it does no longer.
My assumption is that the DHCP requests do not get through, but I 'm just not sure what I need to configure .
My config on the switch VLAN looks exactly like yours.
Is there any other traffic that needs to be allowed on the switch?

Did you find the problem?

Thanks

Dietmar
- schumaku
  Guru - Experienced User
  Jul 08, 2021
  DietmarItsMe wrote:
  
  My assumption is that the DHCP requests do not get through,
  
  Where exactly, which VLAN, ...? The basic untagged (?) UniFi management VLAN or any other VLAN accessed by some dedicated SSID(s)?
  - DietmarItsMe
    Aspirant
    Jul 09, 2021
    Hi schumaku,
    
    I have 3 WIFI Networks , lets call them WIFI_PRIVATE, WIFI_GUEST, WIFI_IOT and according to these 4 VLANs
    WIFI_PRIVATE = 5 (DM Port 1 - Switch Port 1) PVID 5 Tagged 5
    WIFI_GUEST = 15(DM Port 2 - Switch Port 15) PVID 15 Tagged 15
    WIFI_IOT = 35(DM Port 3 - Switch Port 20) PVID 35 Tagged 35
    Management LAN = 1(DM Port 4 - Switch Port 30) PVID 1 Tagged 1
    AP = Switch Port 31 - Tagged for 1,5,15,35 and PVID 1
    The WIFI Networs all do have wired network as well.
    And there are 4 DHCP Servers configured in my Dream Machine
    
    I use 4 uplink cables from my Dream Machine to the switch . One for each VLAN (I know this is not needed, but made it easier for mybrain :-)
    
    The switch is configured on VLAN 1 to be management VLAN
    My thought was, that the AP needs to acquire an IP Address, which should be on the Management VLAN, as this defaults to 1 (I assume) it should come through from Port 31 to 30 and should reach the DHCP there.
    Then it spans the WIFI and communicates on the tagged Networks according to the LAN Config that is used on each WIFI.
    
    But the AP just tries to communicate with my DM and then fails.
    As I said, I assume it is the DHCP, bur maybe it is something that I don't see yet.
    Any idea what I do wrong?
    
    Thanks