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Chromecast shows up with multiple IP and MAC addresses?

dhylands
Community Member

I noticed that when I power up my Chromecast (1st gen), it advertises itself with 2 different MAC addresses which get assigned 2 different IP addresses.

I can arping both IP addresses, and as soon as I pull power I can't arping either one. When I plug it back in, I can then arping both IP addresses.

One of the MAC addresses (d0:e7:82:d9:31:65) is the one that shows up in the Google Home App under Device Information. The other one seems to come from a dynamic range (9a:b7:13:13:4e:31). Each Mac address gets assigned an IP address.

I was curious to find out if this was normal? Does anybody know the purpose of the second MAC/IP address?

7 REPLIES 7

Kennywayne
Community Member

Mine does too, and my phone (android) does the same thing too. Weird

Jeran
Community Specialist
Community Specialist

Hey there dhylands,

I apologize about the late response, thank you for being patient! If you are still encountering this issue, I'd be happy to help take a look into it, since I know this is a bit of an odd problem. Let me just ask a few questions about what's happening:

  • What is the firmware version of your Chromecast device?
  • Does this issue still occur after restarting the Chromecast?
  • Is the issue still happening after a factory reset?

I look forward to your response, and if you have any other questions or concerns for me, please let me know!

Best regards,
Jeran

dhylands
Community Member

Firmware version is 1.36.159268

The issue still occurs after restarting (i.e. power cycle) and after a factory reset.

I only noticed it because I now have a device on my network which allows me to track unknown devices.

Jeran
Community Specialist
Community Specialist

That is a strange occurrence. There was a similar thread not too long ago where someone had the same issues. They were able to get into contact with Google to look at getting the device replaced. If you are able to, I'd recommend that you do the same.

 

Here is how to get into contact with Google Chromecast Support directly.

 

Best regards,

Jeran

Jeran
Community Specialist
Community Specialist

Hey there,

Did you have any more questions or need any additional help?

Thank you,
Jeran
 

Jeran
Community Specialist
Community Specialist

Hey there,

Did you have any more questions or need any additional help? If not, I'll go ahead and lock up this thread in 24 hours.

Just checking up,
Jeran
 

Jeran
Community Specialist
Community Specialist

Hey there!

We haven't heard back from dhylands, and it's been a few days, so I'm locking the thread. As always, feel free to make a new thread if you have any more questions or concerns.

Have a good one!

Best regards,
Jeran