Sensors or Keypad Shown as Disconnected from the Base Station

I'm admittedly no tech wizard, but it's mind-boggling that this has been a sustained problem for a week and SimpliSafe still doesn't have a fix, nor is there an option to revert back to the prior version of the firmware. Sensors going offline lead to warning chimes that can't just be disabled. You have to go and open the door or window to get things back online. Slight inconvenience if you're home doing nothing, but HUGE inconvenience if you're trying to sleep through the night (eh hem...as I was JUST trying to do when I was woken up by my fourth offline sensor of the day). The engineers really need to get their act together with this, or at least give us a temporary work around until a permanent fix is identified. This is completely unacceptable.

Wow I wish I would have read this a month ago before I purchased. Everything has been working fine until today. Three glass break monitors randomly disconnect, after bringing them closer to the station and pressing the button, they reconnected. I put them back in their location. Then a door monitor disconnected a few hours later. I opened and closed the door and it reconnected. I assumed the glass break sensors may be a bit far away, but the door sensor is in direct line of sight 3ft off the ground, on a dense material (covering the only suggestion simply safe has given as a solution to this problem). If this happens again in the next couple days, I will return everything and go with a competitor. My families safety should not depend on a fickle connection that Simply Safe will not address and continues to provide non-solutions.

My key pad is showing offline as well.  I replaced the batteries and tried to reboot everything with no luck.

My 2nd base station keypad also disconnects occasionally, put new batteries in. Nope just did it again.

However, it was also doing this on firmware 2.17. it's 4 or 5 feet away from base 2. Every month or so since I received it, 🤔 6 months ago+-.

Main base station never disconnects, has older batteries and is at least two walls away from main base.

I don't need or want help, nor do I expect any self monitoring, just adding info to the pile in case its useful.

Doesn't seem like it is though.

The idiosyncrasies of WiFi and RF gadgets in completely different environments.

I have had a SimpliSafe system since March and almost every time I put it in Away mode for more than a day, I get random sensors that go offline or are not responding, including the keypad randomly going out of range. It is extremely aggravating and is making me seriously consider switching to a more expensive system just for peace of mind, so I'm hoping this issue gets resolved quickly.

Chiming in — major ongoing issues with sensor disconnects + interference

Hi — adding my voice here.

I’ve been experiencing ongoing issues with the front door sensor disconnecting and repeated wireless interference alerts, sometimes 20+ times in a single night. It was working totally fine for weeks, then started having problems out of nowhere. The base station shows the front door sensor as disconnected or unreachable, then sometimes it reconnects, sometimes it doesn’t. I’ve deleted and re-added the sensor, rebooted everything, and followed all support steps. Still no luck.

Support sent me a replacement sensor (hasn’t arrived yet), but it doesn’t seem like a sensor issue — it feels much more like a base station or firmware-level problem.

Also worth noting:

• Keypad sometimes reports it’s out of range even though it hasn’t moved.

• I have no high-RF devices nearby (no Zigbee, baby monitors, 2.4 GHz phones, etc.)

• I live in Brooklyn, so ambient RF is a given — but that shouldn’t cause this level of failure.

The logs show interference is being “detected” and “resolved” multiple times per night, always within the same minute — which doesn’t feel like real resolution.

I’ve spent a lot of time trying to get this fixed through support. Hoping this engineering review leads to some actual answers.

Let me know if there’s anything I can do to help test or document this further. I’ve got detailed logs if that’s helpful.

We have two keypads and three entry sensors that I had to delete from our system overnight last night because the base station kept chirping saying they were “out of range” and “not responding”. One keypad did the same thing the night before. We’ve had our system since January of 2025 and have not had any issues until the latest update. The issue also only seems to happen between 11pm-2am ET.

My base station still lays on the floor with the batteries removed; what a mess.

My system is less than 6 months old, and I continue to receive this message, sensors are not connected. I have tried disconnecting, readding, and renaming to no avail. 

I had my system installed in December 2024. I had only one issue back in early March, the tech said I needed to put new batteries in 5 of my sensors. Now I have had continuous issues with my "keypad out of range". This started April 12 and has continued anytime I set my alarm. My base is model SSBS. Each time I call for tech support and have to take batteries out of my 2 keypads and the base to get things reset. It works for a while but the next morning I cannot open my doors before everything is reset! I tried just unplugging the base this morning and then plugging it back it. That did a reset for me and allowed me to put the system off. This is extremely frustrating!!!!

still having multiple problems.  today we are close to 10 separate connection issues.  thinking about disconnecting mesh wifi and letting the base station use cellular only to see if it makes a difference. 

So is there no answers from SimpliSafe yet on these issues? My sensors were stable for a few days after my last call with tech support. Now for last few days sensors and keypads disconnecting. Really don’t want another 30 minutes on the phone repeating the same steps. 

Keypad randomly loses connection with the base station after the recent software update.  Coincidentally the base station does not give sensor name announcements when I open door sensors.  The only workaround I found: delete the keypad in Device Settings, remove the battery, and add it again.  Then the base station will respond to the sensors again.  Maybe it’s better to leave the keypad deleted until simplisafe figures out the software bug.

I’m having the same problem as well, came home yesterday and alarm should have tripped and didn’t…everything was out of range/disconnected/not signaling, but I received no alerts that it was disconnected. Reset everything, was working before we went to bed, woke up, same thing this morning. We’ve had no previous issues with any components.

This needs to be fixed or you need to refund my money, I’ll happily ship the equipment back at your cost.