Technician helping troubleshoot Motorola phone screen brightness not working

Steve H.

Reviewed for technical accuracy

Specialities: Samsung Wi-Fi privacy labels (“Public” vs “Private”), hotspot/tethering safety checks, network sharing and device visibility, update-related Wi-Fi.

Network marked “Public” on Samsung: common reasons + what to check first (hotspot vs Wi-Fi, sharing/visibility, after update)

Technician avatar Technician
I can help—this “Public” label worries a lot of people because it sounds like anyone can see your phone.

Trust moment: Let’s start with safe checks first. I don’t want you to reset anything or forget networks yet, because that can create extra problems (like losing saved passwords).

Quick question to avoid chasing the wrong thing: where exactly do you see “Public”?
A) On your Samsung phone inside Wi-Fi details
B) On a computer (Windows/Mac) that’s using your phone’s hotspot
C) On your router/app (home network settings)

And when did you first notice it—after an update, new router, or switching networks?
Customer
I saw it on my laptop. My Samsung hotspot shows up and Windows says “Public network.” It started today. I didn’t change anything (I think).
Technician avatar Technician
That actually helps a lot—this is often a “misleading label” situation, not a security disaster.

In Windows, “Public network” is usually the computer’s own safety setting. It controls things like whether the computer shares files or lets other devices discover it.

Before we do anything: are you using your phone’s hotspot at home, or in a public place (cafe, clinic, airport)? And do you see any odd pop-ups like “network discovery on” or “allow your PC to be discoverable”?
Customer
I’m at home. It asked something like “allow your PC to be discoverable.” I clicked no because it sounded risky.
Technician avatar Technician
You chose the safer option—good call. That prompt is exactly why Windows labels some connections as “Public.” It’s trying to protect you by turning off sharing features unless you choose otherwise.

Trust moment: I don’t want you turning on sharing just to make the label look nicer. First we’ll confirm what “Public” refers to in your case.

Two quick checks to separate causes:
• Is the laptop connected to your home router Wi-Fi, or to your Samsung hotspot right now?
• Do you use the hotspot name/password you set yourself, or is it something you never changed?
Customer
It’s connected to my Samsung hotspot right now. The hotspot name is the one my phone made. I’m not sure about the password.
Technician avatar Technician
That’s a common setup. Here’s the calm way to think about it:

• The phone hotspot is a private connection as long as it uses a password and modern security (like WPA2/WPA3).
• The computer’s “Public network” setting mostly decides whether the computer shares things on that connection.

What are you worried about most right now?
A) Someone can join your hotspot
B) The laptop is “visible” to others
C) You can’t print / cast / share because it says Public
D) You think it means you joined a dangerous network
Customer
Mostly A and D. I’m afraid strangers could get into it, or that I connected to something unsafe.
Technician avatar Technician
That makes sense. Let’s do safe checks that reduce risk without changing a bunch of settings.

Safe check 1 (phone side): confirm your hotspot has a password and isn’t “open.” If it’s open, anyone nearby could join—so we’d stop there and secure it first.

Safe check 2 (environment): look for extra connected devices. If you see an unfamiliar device connected to your hotspot, that’s a real red flag.

Safe check 3 (computer side): “Public” on Windows often means sharing is OFF, which is safer—not worse.

Do you see a list of connected devices on the hotspot screen? If yes, does anything look unfamiliar?
Customer
I see my laptop listed. Nothing else. That’s good. But why did it suddenly call it public today?
Technician avatar Technician
A few “sudden” reasons that don’t mean you did anything wrong:

• Windows treats any new connection as Public until you choose otherwise.
• If your phone changed its hotspot name, band (2.4 vs 5 GHz), or security mode after an update, Windows can see it as a new network.
• Some laptops forget the “Private/Public” choice after certain updates or driver changes.

Trust moment: We don’t need to flip it to Private just to feel better. First, we confirm what you need it for.

Are you having a problem because it’s Public (like printer sharing, casting, or file sharing not working), or is the label itself the main worry?
Customer
The label made me panic. But also my printer doesn’t show up when I’m on hotspot.
Technician avatar Technician
That’s an important detail—and it’s a classic “false alarm.” On a phone hotspot, many home devices (printers, smart TVs) won’t appear because the hotspot acts differently than your home router.

So the printer issue may be normal behavior, not a sign your network is unsafe.

Quick clarifier: is your printer connected to your home Wi-Fi router? If yes, your laptop usually needs to be on the same router Wi-Fi to see it. When you switch the laptop to a phone hotspot, it’s essentially on a different network.
Customer
Yes, printer is on the home Wi-Fi. I didn’t realize hotspot is “separate.” So public doesn’t mean strangers?
Technician avatar Technician
Correct—on your laptop, “Public” is mostly a sharing posture, not a sign that strangers are already inside.

The real safety questions for a Samsung hotspot are simpler:
• Is it password-protected (not open)?
• Do you recognize the connected devices list? (you do—good)
• Are you using it in a place where others are close enough to try to join?

If you’re at home and only your laptop is connected, you’re in a much calmer situation than the word “Public” suggests.
Customer
That helps. But should I change something on the phone anyway to be safer?
Technician avatar Technician
If you want a “safety-first” approach without getting complicated, focus on the basics rather than chasing the label:

• Use a strong hotspot password (something you can keep written down safely).
• Turn the hotspot off when you’re not using it.
• Keep an eye on the connected device list—if you ever see a device you don’t recognize, that’s the moment to take action.

We can also check whether a recent update changed hotspot settings, but we’ll do that carefully and one step at a time.
Customer
Okay. So it’s probably Windows calling it public, not my Samsung making it public?
Technician avatar Technician
Exactly. In most cases like yours, the “Public” label is a Windows profile choice for that connection.

If you ever need printer/file sharing on your home network, the easiest path is usually: connect the laptop back to the home router Wi-Fi for those tasks, and use the hotspot only when you truly need it.

And you did the right thing clicking “No” on discoverable—especially when you’re not sure. That’s a safe default.

Quick answer: the accepted fix

Accepted first approach when a Samsung hotspot or Wi-Fi shows “Public”: confirm whether the label is coming from the phone or from the computer, then focus on basic safety signals before changing sharing settings.

What usually helps most (safe checks):
• Confirm your phone hotspot is password-protected and not open to anyone nearby.
• Check the hotspot’s connected devices list for anything unfamiliar.
• If “Public” appears on a laptop, treat it as the computer’s sharing profile (often safer by default).
• If you need printers/casting, remember a phone hotspot can be a separate network from your home router.
• Avoid “Reset network settings” unless you fully understand what it removes.


Why a Samsung connection can look “Public” (and why it can appear suddenly)

A “Public” label often comes from the device you’re using (like a Windows laptop), not from your Samsung phone. It may appear after an update, after switching between hotspot and home Wi-Fi, or when the network details change (name, band, security mode). Many systems default to “Public” on new connections to keep sharing features turned off. The safer question is whether your hotspot is password-protected and whether you recognize the connected devices.

What to check first: hotspot security, connected devices, and sharing prompts

Start by checking where the “Public” label is shown—on the phone or on another device. If it’s on a computer, it usually controls file/printer sharing and discoverability. On the phone side, focus on simple safety checks: hotspot password enabled, no unknown devices connected, and hotspot turned off when not needed. If you’re trying to print or cast, connect both devices to the same home router Wi-Fi when possible.

Samsung network marked “Public” — gentle troubleshooting tips

Often the “Public” label is a sharing profile on your laptop, not a sign that strangers are inside your phone.

If you see “Public network” on a computer connected to your Samsung hotspot, it usually means sharing is turned off by default. That’s generally the safer posture. The key checks are on the hotspot itself: use a strong password, watch the connected device list, and switch the hotspot off when you’re done. If your printer or TV disappears on hotspot, it may be because the hotspot is a separate network from your home router.

Disclaimer: This information is AI-generated and intended for general guidance only. Avoid making multiple system changes at once. For device-specific steps, consult a verified expert on Whizz-Tech or the manufacturer’s support before making decisions.

Additional troubleshooting options


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FAQ

Why is my Samsung hotspot showing as a public network on my laptop?

Most of the time, that label comes from the laptop (especially Windows), not from your phone. It’s a sharing profile that often defaults to “Public” on new connections. Public usually means sharing and discoverability are turned off. Check hotspot password and connected devices to judge real risk.

Did this happen after an update or after switching Wi-Fi networks?

Yes, updates and network changes can make a device treat the connection as “new.” If your hotspot name, band, or security mode changed, the laptop may re-classify it. This doesn’t automatically mean you joined the wrong network. Focus on whether your hotspot is secured and who is connected.

Is “public network” a security problem or just a settings label?

It’s often just a label that controls sharing behavior on the device that shows it. The real security question is whether the hotspot/Wi-Fi is password-protected and encrypted. If you recognize all connected devices, that’s reassuring. Avoid turning on sharing features unless you truly need them.

Can I check this safely at home without resetting anything?

Yes. You can confirm hotspot password is enabled, review the connected device list, and turn the hotspot off when not in use. If a computer asks about discoverability, choosing “No” is a safe default. Avoid network reset options unless you understand what they remove.

Sources

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