Arlo Secure app UNKNOWN ERROR iPhone 17

[PMich]

I have been trying to troubleshoot the UNKNOWN ERROR which does not allow me to login to the Arlo Secure app on iPhone 17 for the past 15 days but the Arlo support has not been able to resolve.

This is Case No. 45099975 which has been escalated according to Arlo support, but no resolution since more than two weeks. 

The Arlo Secure app works well on my older iPhone 16, and on a computer. 

[ShayneS]

Hi @PMich 

Thanks for reaching out. Does this occur on mobile data and Wi-Fi? 

May I ask which troubleshooting steps you have tried so far? I don't want to suggest anything you have previously performed.

[PMich]

Arlo Secure app doesn’t work on the new iPhone 17 and older iPhone 15. And without the app, how can I reach Arlo telephone support? 

[PMich]

I have tried everything that Arlo telephone support asked me to perform and this has been with Level 3 support who haven’t figured this out yet.

[PMich]

Yes, it occurs on both mobile data and wifi. 

[PMich]

Now it is the third week seeking support from Arlo and still no resolution.

Apple has already emailed me asking for return of the older trade-in iPhone 16. And I can’t send it in without getting the Arlo app to work on the new iPhone 17. Can’t Arlo contact their counterparts at Apple since this appears to me like a compatibility glitch of the Arlo app with Apple’s IOS?

[Edelhart]

Have the same problem . Works on mini 12 and AirPod , not on 17 .

[PMich]

Looks like Arlo Support have abandoned its customers. Their canned response is: It has been escalated and someone will get in touch within the next 24-48 hours. Has been this way since more than the last two weeks.

[ShayneS]

@PMich 

What is the error message you receive, Do you have a screenshot?

[PMich]

 

[ShayneS]

Hi @PMich 

What is the Arlo app version you currently have installed?

I sent you a private message with some additional info. Can you please check your inbox and let me know.

Thanks!

[PMich]

I got the new iPhone 17 recently and hence it should be the latest version. While troubleshooting with Arlo technical support, the Arlo Secure app and data were deleted, newest version downloaded and installed. Still the same error message.

I just emailed you the log that was previously sent to Arlo Technical support.

[ShayneS]

@PMich 

Thanks you, I will get this info to the appropriate team and update you ASAP.

[ShayneS]

The info has been provided and I am waiting for an update. 

[ShayneS]

@PMich 

Can you try this. Can you try Using your iPhone 16 or a phone/device that was previously trusted, log in, then access your profile Icon in the top right, Select you name, Navigate to two-step verification and tap/change it to email, press back arrow, then try logging in to your iPhone 17 and see if you get the code sent to your email address to trust the iPhone 17.

Are you using a US-based phone number? We're trying to see if something changed since the iPhone 16 was able to log in successfully. I see you do not have a VPN connected, but can you verify if you're using a VPN app or anything? 

[ShayneS]

@Edelhart Can you please try the same suggestion above ^

[PMich]

I am not sure how the first paragraph changes anything.

I am using a US based phone number. No, I am not using any VPN. The VPN issue was checked out a couple of weeks back by Arlo technical support.

[ShayneS]

@Edelhart 

Were you able to test the suggested troubleshooting steps above? 

Do you have a screenshot of the error messaging as well? Is it the same reported by PMich?

[DanPM]

longtime aro user with 19 cameras; just upgraded from iPh 15 to 17 with ios26 beta; Arlo app will not process login credentials in credentials, just goes back to log in screen; iPh 15 worked fine even on ios26 beta; anyone having iPh 17 issues? will not work via WiFi or cell connection; tried everything (redownload app, reset network settings, reset WiFi)

[REDHOTROD2000]

I am also am having trouble logging in to the Arlo app on my Iphone 17 it just started happening on 10/15/25. i have tried rebooting my router, deleting the app and trying again and changing my password. Arlo  tells me that I am not entitled to a call from Arlo support. However i can log in on my Iphone 12. 

[DanPM]

Just finished online chat with Arlo; they had me manually unload the Arlo app, then retry the app; solved the issue; steps: Manually offload an app: 1. Open the Settings app. 2. Tap General. 3. Tap iPhone Storage. 4. Wait for the list of apps to load, then select the app you want to offload (Arlo Secure App). 5. Tap Offload App. 6. Confirm by tapping Offload App again in the pop-up warning 7. Do not reinstall app 8. Go to app still on iPhone , open it; should work

[DanPM]

Same procedure resolved problems with rest of my apps that had the same issues

[PMich]

@DanPM 

Offloading deletes the Arlo Secure app and there isn’t an Arlo Secure app left on the iPhone 17 to open from. The only option available was to download and reinstall the Arlo Secure app. The same error comes up again when I try to login.

What did you do not to delete the app when you were offloading the app?

[DanPM]

When you hit offload there is button to reinstall, do not hit that; instead go back to app (still on you phone) and open it; will go through process to reload app; then open the app

[PMich]

@DanPM 

Offloading deletes the Arlo Secure app and there isn’t an Arlo Secure app left on the iPhone 17 to open from.

What did you do NOT to delete the app when you were offloading the app?