Double entries on DHCP reservation list

[busman1598]

Google Home lists duplicate entries for each device on my DHCP Reservation list.  All other Home features are working correctly. The  Home app has been uninstalled and reinstalled with no change to the reservation list.  I installed the app on my wife's iphone and the issue does not appear there.  I have the app installed on my Moto G Power 2023 which I have rebooted several times with no change to the issue.  After 1.5 hours on the phone last night with Google support, they basically gave up.  Any suggestions??

[aperezdeleon]

Hi busman1598,

Thanks for reaching out to our community.

I understand it can be confusing if your Google Home app is showing you duplicate values, but it's okay. Let's see what we can do about it.

Since it seems these entries are only showing on your Moto G Power, I want to know: Are your phone and your wife's phone on different networks altogether? It would be great if you could remove your current network from your device and connect it back again to check if it starts to display the DHCP IP reservations as intended.

Since you've already removed your app once, I suggest you delete the Google Home app cache by:

Open your phone’s Settings > Apps > Google Home > Clear app cache.

Let me know what you find out.

Regards,
Angel.

[busman1598]

I have reset all network connections and cleared the cache.  The double entries still exist.

[aperezdeleon]

Hello again busman1598,

Thanks for your reply.

To better assist you in viewing the DHCP reservation list as intended, we need to gather additional information about your device. Therefore, I suggest you please fill out this form. Doing so will allow my team to contact you directly via email so we can determine the best course of action.

Please let me know once you've filled it out. I'll keep an eye out for your response so my team can contact you as soon as possible.

Regards,
Angel.

[busman1598]

I have submitted the form.

[busman1598]

A bit more information.  Probably about 3 weeks ago my Nest router seemed to have failed.  It would not connect to my ISP to get the internet connection.  It was still providing WiFi to the rest of the system, just no internet.  Assuming a hardware failure, I reset all devices to factory settings and repurposed a second Nest router as the primary router using the same Google account and then set up the two Google WiFi pucks as access points.  I believe that this is when the issue started .  Maybe this will help identify the problem.

Thanks.

[Lidelse]

This has been happening for weeks on my nest wifi pro setup. 2 of every dhcp reservation. On every device I look at it with using Google home. So at least other people are seeing this behavior 

[busman1598]

At one point they told me it was an issue with my Moto G Power (2023) as the problem did not manifest itself on my wife's iPhone.  I still don't think it's a phone problem.  My belief is that it's an app issue,  Everything else seems to work OK in the Home app with the exception of devices randomly appearing as off-line when in fact they are on line and working perfectly.

[sydhzf]

https://imgur.com/a/C3M4y2M 

Same here using Nest Router as main Wifi. Attached the list for 15 devices with exact double entries making it to show 30 entries. Seems to be with the app as when I delete the duplicate, it deletes both of the same entries.

[aperezdeleon]

Hello folks,

Thanks for chiming in this thread.

I understand how confusing it can be to have multiple devices sharing the same IP address and name on the DHCP reservation list. Let's figure out what's going on.

Please let me know which type of devices (such as a phone or tablet) you're using to access your DHCP list. Also, could you give me an estimated timeline of when you first noticed multiple entries for the same device on the list?

My suggestion is to try accessing the DHCP list from a different device. You could also test this device on a different network (like a mobile hotspot) and see if the issue persists. After that, try rebooting your router just as I mentioned earlier.

I look forward to your response.

Regards,
Angel.

[busman1598]

I DO NOT have multiple devices sharing the same IP address.  If you read my posts carefully, you will see that isn't the problem.  Every time I assign an IP address to a device it appears twice (2 times) on the reservation list.  If I delete one of the duplicates from the list, they both disappear.  There have been 2 other users that have reported the exact same issue on my original post in the community forum.  I have explained this issue several times but it seems that every one is misinterpreting the actual issue.  I repeat,  there are not 2 different devices with the same IP address.  It's one device, listed twice with the same IP  address.  I am accessing the list via my Android phone.  Everything seems to be OK with the IOS app on my wife's phone.  It's my opinion that there is an issue with the Android app.  This issue started many, many weeks ago.  The app is up-to-date and has been reinstalled several times.  I can't count the number of times I have restarted the router.  Please go back and reread the ACTUAL issue so you are trying to solve the ACTUAL problem.  Keep me posted.  Thanks.

[Lidelse]

I will add that busman is fully correct here it'd showing the same thing twice. I have used 3 different android devices 2 on 15 1 on 14 all with the same thing. Router rebooted many time and also the nest wifi pro just got a new firmware and the issue persists through that. I THINK I noticed this once the latest round of public previews went out. Because it was working normally before that when we weren't running a preview build several weeks ago. But my memory is foggy. 

[Lidelse]

The Google home app on android is out of public preview now and the issue persists. Just wanted to drop a quick update. 

[ktf]

I am seeing the same problem.  My phone is a Pixel 9 Pro XL.  My phone and Nest Wifi Pro are both up to date.  I have about 15 hosts that I reserved IP addresses for in the 200-255 range.  My dynamic range is 20..199.  I deleted all 15 until the list was empty and then restarted my network.  I just added the first one back and I see two identical entries "envoy" -> "192.168.1.220".   Same for all the other assignments I added back in.

I don't actually know if this is an operational problem or not.  I started looking into it because I added a couple of new assignments and when I restarted the devices, they failed to take the assigned IP address.

[busman1598]

At one time, I also deleted all the devices on the reservation list. As I added them back the still listed twice.  I am sure there many others out there with the same issue.  Google support seem to be ignoring the issue.

[Lidelse]

It doesn't seem to have any functional issues. But when you have like 10 or so doubled it. Makes the list way longer to sort through. This doesn't seem to be adding 2 ips but rather just visually listing them twice. Removing them and reading them does readd 2 copies though still. 

[busman1598]

That is exactly the issue.  Other than Google Home randomly showing access points as  being  off-line when on fact they were still on-line, everything else seems to function OK.

[Hannover2k]

Just to toss in my two cents, I'm having the same issue on all my Samsung devices. A Note 8, S21 and S20 Ultra. Along with a galaxy Tablet 8.  All DHCP reservations are duplicated and deleting one deletes both. This is clearly an app issue.

[busman1598]

I don't think Google even cares!!

[juggalolefty]

I am having the same issue as well and I have done all troubleshooting that could be done (factory reset, remove devices, power cycle multiple times) trying to fix another issue with DHCP when I was trying to release an IP so I could issue it to another device but I found that issue as well. Functionally it works but has multiple entries for the same device for DHCP reservations in the app.

[busman1598]

Thanks for sharing your comments.  That provides more proof that it's not just an isolated issue.  You would think Mother Google would pickup on this. 😁😁

[ZanQdo]

Having the same issue. All IP reservations appear twice.

[asterger]

All DHCP reservations are appearing twice for me on Pixel 6, Android 14.

[busman1598]

Thanks for adding that you are having the same issue.  Maybe someday someone somewhere will fix the issue.

[Lidelse]

Yeah still happening on android 15 even on stable version. And in the qpr1 beta as well. On the latest version of Google home using public preview. Definitely still an issue. 

[tech_fatigue]

Same issue here, all reserved devices appear twice.

[busman1598]

Thanks for posting!!

[JDawgggg]

I'm also having the exact same issue.  Double entry of each reservation shows in app.

[busman1598]

Thanks for posting.

[Anonymous]

Is this only cosmetic or can it cause problems in addition to a list twice as long? I have had the problem with both Google WIFI (3-pack) and later with Google WIFI Pro (3-pack). Can double NAT be ruled out?

[busman1598]

No issues here other than the list being twice as long. Since I only have one single nest router, I believe double NAT can be ruled out

[juggalolefty]

I have no issues, I believe it is only cosmetic, I have mesh with 1 point. At this point I want to switch to a mesh that is not ridiculus like these google devices (no browser ui, limited ability to configure settings, cannot force ip refresh for dhcp reservations, etc., etc., etc.).

[Lidelse]

So it seems cosmetic. Though I had to cut down on how many reserved IPs i was using because my list had been so long. But I suppose if it is double NAT maybe it is coming from the carrier? The Nest Pro 3 Pack I am using is Not set up double NAT. It is set up as NAT on main and Bridge mode on other two. But as far as I know nothing else is acting as if I am having problems of being double NATed from the carrier NAT. But I know my ISP runs a carrier grade NAT so that could be part of it?

[juggalolefty]

My ISP does not use cgnat (Verizon FIOS). If you have double NAT though, you could switch your WAN to IPV6 (if your carrier supports it) to eliminate the cg/double NAT situation:
https://arstechnica.com/civis/threads/double-nat-solved.1490045/

However, I do not believe that this is the issue here. I understand how frustrating this issue is as I host a homelab and have over 10 devices (and growing) that require a static IP and let's only use 10, that is 20 entries to scroll through.

[Lidelse]

I will say forcing IPv6 which is how you get around the CGNAT for MetroNet doesn't fix this BTW. Nor is it something I really want to do. I have no desire to push my unique device IDs out there publicly more than I have to for privacy reasons.

[Dexmot74]

Pixel 9 pro, same issue. 

[busman1598]

Thanks for posting. The make/model of the phone is definitely not the issue.

[wimpler]

I have the same issue (Pixel 9 Pro) but think that it's more than simply a display artefact. When I reserved a DHCP IP against a device, after restarting the device it certainly retain the IP. Google Support, don't bother contacting me, just fix it.

[wimpler]

*certainly DIDN'T retain the IP...

[Lidelse]

Ooo. now this is a new one. for me the IP stays reserved on my reserved devices even after reboot. absolutely necessary for wireless printing unless you want it to be a mess on mobile especially. I am going to test and see if any new changes here but so far the one  printer in the basement hasn't had issues with maintaining its reserved IP and that is a POS HP that needs to restart a lot. But if this becomes more than a visual problem then it needs to move up the to do list.