4Sight Is Retired. You Don't Need Connect to Upgrade

No, you don't need a subscription to update your system.

The most common message I get right now goes something like this: "I called about updating my Control4 system and was told I need to buy a subscription first before anything can be done." That advice is wrong. 4Sight is retired, Connect replaced it, and neither one is required to move an existing system to X4. Sometimes the person saying it is a dealer who hasn't checked in a while; sometimes it's a forum post from 2023 that still ranks well on Google. Either way, it costs people money they don't need to spend.

Here's the situation as it actually stands.

What 4Sight was

4Sight was Control4's remote-access subscription. You paid annually, and in exchange your controller could talk to Control4's cloud, which meant three things worked:

• Remote control from the app when you weren't on your home Wi-Fi — adjusting the thermostat from the airport, checking a camera from the office.
• Push notifications to your phone from system events.
• When >> Then, the cloud-based scheduling and automation you could edit from the app rather than needing a dealer in Composer.

Without it, everything still worked inside the house. Touchscreens, keypads, remotes, the app on your home network — all of that is local to the controller and always has been. 4Sight never controlled your lights. It controlled whether you could reach your lights from somewhere else.

That distinction matters, because a lot of owners have been told their system "won't work" without a subscription. It works. You just have to be standing in the house.

4Sight is retired. Connect replaced it.

Snap One retired 4Sight and replaced it with Connect. Connect does the same job — remote access, notifications, cloud automation — under a new name and a new tier structure. New systems get Connect. There is no path to buy 4Sight anymore.

If you have an active 4Sight subscription today and it still works, you're in a grandfathered position. Nothing has switched off underneath you yet. But there's a trapdoor you need to know about before you touch anything.

Activating Connect terminates 4Sight permanently

This is the single most important operational fact in this whole article: the moment Connect is activated on your account, 4Sight ends, and it cannot be reinstated. Not by you, not by your dealer, not by calling Control4. It is a one-way door. There is no "let me try Connect and switch back if I don't like it."

So if you're sitting on a working 4Sight subscription and someone suggests activating Connect "just to see," don't. Decide first whether you want to make the switch, understand what you're giving up and gaining, and then do it deliberately. I've had owners activate it during an unrelated support call and then discover the tier they landed on didn't include something they used daily.

Connect Core Lite is $0 through the end of 2026

The entry tier, Connect Core Lite, costs nothing through the end of 2026. That is worth knowing before you agree to a recurring charge. If a quote lands in front of you with a line item for remote access and the number isn't zero, ask specifically which Connect tier it is and what that tier includes that Core Lite doesn't. There may be a legitimate answer. There may not be. Make them say it out loud.

I'm not going to publish a feature-by-feature tier comparison here, because Snap One adjusts these and I'd rather you check the current tier sheet than trust a snapshot from an article. What I will tell you is the question to ask: "What specifically do I lose if I stay on Core Lite?"

The big one: you do not need Connect to upgrade to X4

For a while, this was true. Moving an existing system to OS 4 required an active subscription on the account, and that requirement was enforced. A lot of dealers built their advice around it, and a lot of owners were told, correctly at the time, that a subscription had to come first.

That requirement went away at the end of Q1 2026. A Connect subscription is now optional for upgrading an existing system to X4.

I'm not repeating something I read. We have taken a real EA-5 from OS 3.4.3 all the way to 4.2.0 with no Connect subscription on the account at any point in the process. It updated, the drivers came across, the project loaded, the house worked. No subscription involved.

So if the reason you haven't upgraded is that someone told you the subscription was a prerequisite — that reason is gone. You may still want Connect afterward, because you want remote access from your phone. That's a separate decision you get to make on its own merits, after the system is current, not as a gate you have to pay through first.

The upgrade itself is a staged climb, not a button

Since this is usually the next question: no, you don't jump from 3.x straight to 4.2.0.

Control4 OS upgrades have to be walked up in stages. There are intermediate versions you have to land on and let the system fully settle at before moving to the next one. Skip a step and the most common casualty is bindings — the connections in the project that tie a source to a zone, a keypad button to a load, a driver to the device it's supposed to be talking to. They don't throw a dramatic error. They just quietly come across empty, and you find out three weeks later that the keypad by the back door does nothing and nobody can explain why.

Older drivers are the other half of it. A 2014-era driver written against OS 2 may not have an OS 4 equivalent, and part of doing this properly is knowing which ones will need to be swapped for a current driver and reprogrammed rather than migrated. That's the part that takes judgment, and it's the part that's worth paying someone for. The clicking-of-buttons is not.

One hardware note: not every controller can make the trip. The EA and CA series are current-generation and go to X4. The older HC-series controllers stopped receiving OS updates years ago and top out well short of it. If your controller is an HC-250 or HC-800, no amount of subscription is going to change that — you're looking at a controller replacement, and anyone telling you otherwise is guessing. Check what OS your system reports in the app or on a touchscreen settings page before you assume either way.

Remote access still isn't working. Now what?

Assume for the moment your subscription situation is sorted and the app still won't connect from outside the house. In rough order of how often it's actually the cause:

The router got replaced

This is number one by a mile, and it's the same reason a Lutron processor goes dark after an ISP swaps the modem. The controller had a DHCP reservation on the old router. New router, new DHCP pool, no reservation — the controller picks up a different address, and everything that was pointed at the old address stops resolving. Fix: get into the new router, find the controller by its MAC address, and give it a reserved address again. Then reboot the controller so it re-registers with the cloud from a stable address.

Nobody needs to forward a port, and you shouldn't

Control4's remote access is an outbound connection from your controller to Control4's servers over standard HTTPS. Your controller reaches out; nothing reaches in. If a previous installer left port forwards pointed at the controller, those are a liability, not a feature. I'd close them.

The controller's clock is wrong

Encrypted connections care about time. If the controller has lost its time sync — usually after an extended power outage or a DNS problem — certificate validation fails and you get a generic "unable to connect." Check the controller's date and time in system settings. If it's off, that's your problem, and it's usually a DNS or NTP reachability issue on the network rather than the controller itself.

Push notifications specifically

If remote control works but notifications never arrive, it's almost always the phone, not the house. Modern iOS and Android aggressively suspend background apps to save battery. Exclude the Control4 app from battery optimization and confirm notifications are allowed at the OS level, not just inside the app.

Camera streams drop, everything else is fine

That's upload bandwidth. Remote camera viewing pushes video out of your house, and residential connections have far less upstream than downstream. Lower the remote stream quality on the cameras before you blame the controller.

If your dealer is gone

Worth saying plainly, because it's why most people end up reading an article like this: your Control4 system has a dealer of record attached to it in Snap One's system. That's the account that can push updates, open your project, and make subscription changes. If that dealer closed, retired, moved, or simply stopped returning calls, you are not locked out forever — the dealer of record can be transferred to another authorized dealer. You do not have to keep chasing someone who has decided your house isn't worth the drive.

What I'd actually do, in order

Find out what OS you're running and what controller you have. Those two facts determine everything else. If you're on 3.x with an EA or CA controller, you can be on X4 without buying a subscription first, and I'd do that before making any subscription decision at all — a current system behaves differently and you'll be deciding with better information.

If you have working 4Sight, leave it alone until you've decided. If you don't, look at Connect Core Lite at zero dollars through the end of 2026 and see whether it covers what you actually use. Most owners want remote app access and notifications, and that's the core of it.

And if someone quotes you a subscription as a required precondition to an OS upgrade on an existing system, that person is working from information that expired at the end of Q1 2026.

We do Control4 and Lutron work remotely — OS upgrades, driver migrations, reprogramming, and taking over dealer of record when the original dealer is no longer around. If you want someone to look at what you have and tell you what it actually needs, that's the job.