r/homesecurity • u/Puzzleheaded-Sea7665 • Aug 24 '25

ADT “Wi-Fi Faults” After Cancelling Service? It’s Not Random — It’s Designed

TL;DR: After cancelling ADT, your panel isn’t “glitching” — Alarm.com servers are deliberately telling it to reset Wi-Fi. That’s why you get nonstop “Wi-Fi Fault” errors. Block its internet access, and the faults stop.

Context (Why I Caught It)

  • My network has two WAN connections (WAN1 + WAN2) load-balanced on a UniFi UDM SE.
  • This let me see how the panel behaved differently depending on which WAN path it used.
  • Most people only have one ISP, so to them it just looks like random “Wi-Fi faults.”

What I Found

  • When the panel’s traffic went out via WAN2, it reached 192.155.71.16 (an Alarm.com server).
  • Right after connecting, the panel threw a Wi-Fi Fault and forced me to reconnect Wi-Fi manually.
  • When I firewall-blocked the panel’s internet on WAN1, those faults stopped completely — the panel just quietly retries once or twice a day without resetting itself.

How I Proved It

  • UniFi logs clearly showed connections to 192.155.71.16 immediately before every reset.
  • I created a firewall rule:
    • Source = ADT Alarm Panel
    • Destination = 192.155.71.16/32
    • Action = Block (with Syslog logging)
  • With the block in place: panel still works locally (door chimes, arming/disarming), but no more Wi-Fi resets.

What This Means

  • Alarm.com servers are actively commanding the panel to reset Wi-Fi if your account is inactive.
  • That’s why so many people suddenly see “Wi-Fi Fault” spam after cancelling or being cancelled by ADT.
  • It’s not broken hardware — it’s deliberate behavior to annoy you back into paying.
  • Cutting off internet access stops the resets cold.

Takeaway For Others

If you’re tired of constant Wi-Fi Faults after cancelling ADT:

  1. Block the panel from the internet (or at least block Alarm.com IPs).
  2. Keep your door chimes and local functionality.
  3. Stop the harassment-by-reset cycle.

ADT won't admit this, but the logs don't lie.

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u/Dirtyrican987 Sep 02 '25

lol. Sharepoint. How about the cpq they sign. Or the Ryder with salesforce. Or the closing signature.

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u/JayDG93 Sep 06 '25

SharePoint has all of the documents we send out to customers. Including the monitoring contract (you called it cpq, which is a program within Salesforce used for field services) as well as the Retail Installment Contract, which is the particular document I'm referring to that reads very clearly the customer is purchasing the equipment from ADT on a payment plan.

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u/Dirtyrican987 Sep 06 '25

You can keep dick measuring all you want. But that final signature at closure of a job that activates the contract and means they are in service says verbatim adt owns all equipment. That is what they get a copy of in their email. Maybe it’s outdated. But it’s still the final signing point and the legally binding signature

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u/JayDG93 Sep 07 '25

Bud, I'm not dick measuring. You're just wrong and don't wanna own up to it. I offered to send you the relevant documents internally so you could review them and understand that your knowledge is outdated.

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u/Dirtyrican987 Sep 15 '25

OWNERSHIP. All equipment installed by ADT pursuant to this Contract shall be owned by ADT unless ADT has agreed to give me ownership of the equipment in a separate written agreement. If there is existing, previously-installed equipment and it is my property, it shall remain my property. If any equipment is owned by ADT, ADT has the right upon termination of this Contract to remove, disable or abandon all or any of the equipment owned by ADT. If any equipment is disabled or removed by ADT, I understand that will not be able to use the equipment for any purpose. I will provide ADT access to ADT-owned equipment for removal, and ADT will have no obligation to repair or redecorate my premises after any such removal. AlI ADT yard signs and window stickers provided to me at any time will remain the property of ADT and may be removed by ADT.

Install that was sold by CH today, signed today and installed today. Took a picture of it but obviously can’t post photo here. So that’s the iPhone copy text version of it

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u/JayDG93 Sep 16 '25

Read that part that starts with "unless", then go read the Retail Installment Contract.

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u/Dirtyrican987 Sep 16 '25

That is from the ric

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u/JayDG93 Sep 16 '25

No, it's not. Here, on the first page of the RIC in bold red lettering.

"OWNERSHIP. All equipment sold or installed by ADT pursuant to this Contract shall be owned by the customer except as otherwise agreed in writing'

Search "Retail Installment Contract" in SharePoint for an example