Why do I have two IP addresses?

Audio Gear Talk RoPieee
1

Why do I have two IP addresses?
The endpoint keeps dropping the audio and when I investigated I saw that there are two IP addresses - I can ping both of them.

Screenshot 2026-02-08 at 20.41.33
Screenshot 2026-02-08 at 20.41.332986×1890 224 KB

2

What addresses are you pinging?

3

Hi @Bart_Maguire,

This device only has one IP address (10.10.66.70).

IP Netmask 255.255.255.0 configures the device to be on subnet 10.10.66.xxx

Gateway: 10.10.66.1 is where this device should send traffic to reach devices / services that are not within your local subnet. Typically this is the address of your internet router, which will then forward the traffic out to the cloud.

I can see the device is configured to have a static address, that’s ok but do make sure that the configured IP address is not within the DHCP range that your router can allocate from. Otherwise there is a risk of IP contention.

My preferred way to avoid this is configure devices to get there IP address via DHCP, and then in the router configuration reserve the IP against the device’s MAC address. This way the address come from the router but it does not change. IMHO this is the best of both worlds.

1 Like
4

I only see one IP address in that screen shot. Yes the Gateway is an IP address but not of the RoPiee. The gateway IP is what RoPiee sends traffic to with the destination is not on the Same subnet 10.10.66.0/24. You should be able to ping both 10.10.66.70 and 10.10.66.1.

5

I wondered if the point was the 10.10.66.68 showing in the tab title of the browser? Suggesting that the unit is on both 66.68 & 66.70?

6

Hi @Calum_Mackay,
That’s a good spot, I’d missed that (viewing on my iPhone), it could be … does seem odd.
Let’s see if @spockfish can shed some light.

7

Yes, the endpoint is on both addresses and I can ping them both. Roon sees the 10.10.66.68 address but keeps dropping the audio. I can open both addresses in a browser, both show the address to be 10.10.66.68 but the address bar of the browser shows either 10.10.66.68 or 10.10.66.70.

8

I suspect the router’s MAC to IP mapping table … which links a device’s unique physical hardware address (MAC) to its current network location (IP address), is corrupted.

I’d suggest rebooting the router to force it to rebuild the data.

9

Good spot! So, it looks like what @Carl has suggested in the cause.

@Bart_Maguire, if it continues to do this, assign (reserve) an IP address to Ropieee in the router.

10

I have now rebooted the router and set a static address for the endpoint. Let’s see what happens over the next few hours…

11

You can also send me feedback so I can have a look what happens on the device.

12

I have now played it for 5.5 hours with no dropouts. Rebooting the router might have solved the problem.

1 Like
13

Thanks Harry,
26919c7dc27ecd41
I have had dropouts for some days, the last two were last night, the two tracks before I played “Elegia”