I recently bought a couple of LIFX 100mm Downlights and haven’t had much success getting them connected to the network. They connect to the Wi-Fi but don’t get an IP address.
I have run the update in the android app as well as the 0.4 macOS LifxFirmwareUpdater and 0.6 macOS LifxBetaFirmwareUpdater and as of this post the lights are all up to date
My network consists of multiple UniFi AP-AC Lite wireless access points connected to a switch which connects to a router provided by our ISP. The router provides dhcp for the network (10.0.0.0/24)
In the UniFi console, I can see the lights connect to the network but they don’t get assigned an IP address.
I observed the DHCP handshake between the lights and the router by inserting a hub between the router and switch and running Wireshark on a PC connected to the hub.
The lights send a discover and the router responds with a offer but there is no request sent from the lights to the router. They just keep spamming discover for a while then stop.
Also, if this DHCP issue isn’t fixed soon, is it possible to set the lights to a static IP address?
The mobile app can sometimes find the lights with their self assigned IP addresses (e.g. 169.254.244.150) but it’s slow and the lights often just disappear in the app then maybe come back a few minutes/hours later. I’m not sure if the poor connection to the lights is due to them having self assigned IPs but the app is pretty much unusable at this stage. Google home is also unable to find the lights at all even when they are visible in the LIFX app which I suspect is due to the self assigned IP addresses.
I checked if connecting the phone and lights to the same access point was any better than having the phone and lights on separate access points but observed no noticeable difference.
Here’s a couple of packets captured from Wireshark of the DHCP handshake:
Frame 199478: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
Ethernet II, Src: LifiLabs_27:c7:68 (d0:73:d5:27:c7:68), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
0100 .... = Version: 4
.... 0101 = Header Length: 20 bytes (5)
Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
Total Length: 328
Identification: 0x000b (11)
Flags: 0x00
Fragment offset: 0
Time to live: 64
Protocol: UDP (17)
Header checksum: 0x799b [validation disabled]
[Header checksum status: Unverified]
Source: 0.0.0.0
Destination: 255.255.255.255
[Source GeoIP: Unknown]
[Destination GeoIP: Unknown]
User Datagram Protocol, Src Port: 68, Dst Port: 67
Source Port: 68
Destination Port: 67
Length: 308
Checksum: 0xf02c [unverified]
[Checksum Status: Unverified]
[Stream index: 36]
Bootstrap Protocol (Discover)
Message type: Boot Request (1)
Hardware type: Ethernet (0x01)
Hardware address length: 6
Hops: 0
Transaction ID: 0xa8fa9451
Seconds elapsed: 4
Bootp flags: 0x0000 (Unicast)
0... .... .... .... = Broadcast flag: Unicast
.000 0000 0000 0000 = Reserved flags: 0x0000
Client IP address: 0.0.0.0
Your (client) IP address: 0.0.0.0
Next server IP address: 0.0.0.0
Relay agent IP address: 0.0.0.0
Client MAC address: LifiLabs_27:c7:68 (d0:73:d5:27:c7:68)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name not given
Magic cookie: DHCP
Option: (53) DHCP Message Type (Discover)
Length: 1
DHCP: Discover (1)
Option: (57) Maximum DHCP Message Size
Length: 2
Maximum DHCP Message Size: 1500
Option: (55) Parameter Request List
Length: 5
Parameter Request List Item: (1) Subnet Mask
Parameter Request List Item: (2) Time Offset
Parameter Request List Item: (3) Router
Parameter Request List Item: (6) Domain Name Server
Parameter Request List Item: (69) SMTP Server
Option: (60) Vendor class identifier
Length: 5
Vendor class identifier: EMLAB
Option: (61) Client identifier
Length: 7
Hardware type: Ethernet (0x01)
Client MAC address: LifiLabs_27:c7:68 (d0:73:d5:27:c7:68)
Option: (255) End
Option End: 255
Padding: 000000000000000000000000000000000000000000000000...
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
Frame 199479: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits) on interface 0
Ethernet II, Src: Netgear_a0:bc:94 (00:24:b2:a0:bc:94), Dst: LifiLabs_27:c7:68 (d0:73:d5:27:c7:68)
Internet Protocol Version 4, Src: 10.0.0.1, Dst: 10.0.0.191
0100 .... = Version: 4
.... 0101 = Header Length: 20 bytes (5)
Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
Total Length: 328
Identification: 0xdead (57005)
Flags: 0x00
Fragment offset: 0
Time to live: 128
Protocol: UDP (17)
Header checksum: 0x4638 [validation disabled]
[Header checksum status: Unverified]
Source: 10.0.0.1
Destination: 10.0.0.191
[Source GeoIP: Unknown]
[Destination GeoIP: Unknown]
User Datagram Protocol, Src Port: 67, Dst Port: 68
Source Port: 67
Destination Port: 68
Length: 308
Checksum: 0xdf56 [unverified]
[Checksum Status: Unverified]
[Stream index: 38]
Bootstrap Protocol (Offer)
Message type: Boot Reply (2)
Hardware type: Ethernet (0x01)
Hardware address length: 6
Hops: 0
Transaction ID: 0xa8fa9451
Seconds elapsed: 0
Bootp flags: 0x0000 (Unicast)
0... .... .... .... = Broadcast flag: Unicast
.000 0000 0000 0000 = Reserved flags: 0x0000
Client IP address: 0.0.0.0
Your (client) IP address: 10.0.0.191
Next server IP address: 10.0.0.1
Relay agent IP address: 0.0.0.0
Client MAC address: LifiLabs_27:c7:68 (d0:73:d5:27:c7:68)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name not given
Magic cookie: DHCP
Option: (53) DHCP Message Type (Offer)
Length: 1
DHCP: Offer (2)
Option: (1) Subnet Mask
Length: 4
Subnet Mask: 255.255.255.0
Option: (2) Time Offset
Length: 4
Time Offset: (0s) 0 seconds
Option: (3) Router
Length: 4
Router: 10.0.0.1
Option: (23) Default IP Time-to-Live
Length: 1
Default IP Time-to-Live: 64
Option: (51) IP Address Lease Time
Length: 4
IP Address Lease Time: (3600s) 1 hour
Option: (54) DHCP Server Identifier
Length: 4
DHCP Server Identifier: 10.0.0.1
Option: (6) Domain Name Server
Length: 8
Domain Name Server: 198.142.152.164
Domain Name Server: 198.142.152.165
Option: (255) End
Option End: 255
Padding: 00000000000000000000000000
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