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Forum Discussion
Brownds
Sep 16, 2020Tutor
RBS850 Phantom MAC address appearing/disappearing from LANwith same IP as Satellite
I have RBK853 (1 x RBR850 & 2 x RBS850) + 1 x additional RBS850 satellite. All satellites are Cat 6 cabled direct to RBR850 router, All devices on same firmware version v3.2.16.6 and have been factory reset, and mesh resync'd to router. Guest Network is disabled and RBR850 is in Access Point Mode. All appears to be working ok apart from the additional satellite which occasionally drops out out the mesh network and then immediately reconnects and resyncs.
It appears that the route cause for the additional satellite to eventually disconnect/reconnect to the mesh network via wired backhaul, is due to a phantom MAC Address which is constantly appearing/disappearing on the LAN. The actual DHCP IP Bind address for the additional satellite is 192.168.1.6 which is bound to MAC 10xxxxxxxxDA, whereas the phantom MAC address is 12xxxxxxxxDD (xxxxxxxx denoting identical details) which also appears on the network with the same IP address of the satellite 192.168.1.6. My manage switch the detects a duplicate IP address on the network and starts to alert.
I have tried to setup an DHCP IP Bind for the 12xxxxxxxxDD MAC, but it never makes a DHCP request and always assumes 192.168.1.6!
I have factory reset all devices and started over many times, but the additional satellite to the original RBK853 kit, always ends up with the same trait.
Any help with this would be much appreciated.
17 Replies
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
What is the mfr and model# of the main host router the RBR is connected to?
What is the Mfr and model# of the ethernet switch in the configuration?Where is the swtich connected? Between the RBR and RBS?
What browser are you using?
Please provide a screen capture of that your seeing. Use the Choose File button to attach the capture file.
- BrowndsTutor
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
Draytek Vigor 3910 Router WAN port is connected to a Virgin Media Hub 4 (in Modem Mode) - Gig1 Service
Draytek Vigor 3910 Router WAN failover is connected to a Netgear 6400 AC1600 VDSL/ADSL Modem (in Modem Mode), BT 64Gb service
Draytek Vigor 3910 Router WAN failover load balancing, connected to USB LTE Modem, Virgin Mobile 4G Unlimited Data
RBR850 iNet port is connected directly via Cat 6e Cable to a 2.5Gb LAN port on Draytek Vigor 3910 Router
What is the mfr and model# of the main host router the RBR is connected to?
Draytek Vigor 3910 Router - Latest Firmware
What is the Mfr and model# of the ethernet switch in the configuration?
Draytek Vigor G2280x Managed Switch - Latest Firware
Where is the swtich connected? Between the RBR and RBS?
The RBS's are direct cabled via Cat 6 cables to the RBR, all 1Gb links.
The RBR is connected via its iNet Port directly to the Daytek Vigor 3910 via 1m 2.5Gb LAN link
The G2280x switch is connected directly to the Draytek Vigor 3910 via 1m 10Gb SFP+ cable
What browser are you using?
Various browsers ... MS Edge, MS IE, FireFox or Chrome ... all latest versions vailable
- BrowndsTutor
- DarthBobAspirant
I just now had the identical issue. I use my RBR/RBS850 in AP mode and within the last 10 min. received a notification from my router that a new device with MAC of 16:0C:6B:3E:FD:46 was connecting to my network with the IP address of my RBS850. This doesn't match any MAC address on my network and, when I look it up, doesn't resolve back to any vendor.
Brownds wrote:I have RBK853 (1 x RBR850 & 2 x RBS850) + 1 x additional RBS850 satellite. All satellites are Cat 6 cabled direct to RBR850 router, All devices on same firmware version v3.2.16.6 and have been factory reset, and mesh resync'd to router. Guest Network is disabled and RBR850 is in Access Point Mode. All appears to be working ok apart from the additional satellite which occasionally drops out out the mesh network and then immediately reconnects and resyncs.
It appears that the route cause for the additional satellite to eventually disconnect/reconnect to the mesh network via wired backhaul, is due to a phantom MAC Address which is constantly appearing/disappearing on the LAN. The actual DHCP IP Bind address for the additional satellite is 192.168.1.6 which is bound to MAC 10xxxxxxxxDA, whereas the phantom MAC address is 12xxxxxxxxDD (xxxxxxxx denoting identical details) which also appears on the network with the same IP address of the satellite 192.168.1.6. My manage switch the detects a duplicate IP address on the network and starts to alert.
I have tried to setup an DHCP IP Bind for the 12xxxxxxxxDD MAC, but it never makes a DHCP request and always assumes 192.168.1.6!
I have factory reset all devices and started over many times, but the additional satellite to the original RBK853 kit, always ends up with the same trait.
Any help with this would be much appreciated.
What happens if you turn OFF the other RBS leaving this one with the Phantom MAC on, does the problem still appear?
Try swapping this one RBS with one of the other RBS in it's placement and connection to see if the problem follows. If so, I would make contact with NG support about this.
DarthBob wrote:I just now had the identical issue. I use my RBR/RBS850 in AP mode and within the last 10 min. received a notification from my router that a new device with MAC of 16:0C:6B:3E:FD:46 was connecting to my network with the IP address of my RBS850. This doesn't match any MAC address on my network and, when I look it up, doesn't resolve back to any vendor.
- BrowndsTutor
Does any part of the phantom MAC 16:0C:6B:3E:FD:46 match that of your any of Orbi Satellites or Orbi Router?