Primescan 2 Works on One Computer or Tablet but Not Another: What the Result Tells You

If your Primescan 2 scans normally on one computer or tablet but won't load, connect, or complete a scan on another, the scanner may not be the problem. A Primescan 2 that works on a second internet-connected device is already giving you valuable evidence. A browser, DS Core session, network, or device-level problem becomes a far more likely suspect than the scanner itself.

This article shows how to run that comparison properly, what each outcome suggests, and which checks are safe for your team. If the fault follows the scanner from device to device, Repair.Dental can evaluate the unit for a scanner-side fault.

Primescan 2 Works on One Computer or Tablet but Not Another on Repair Guru

Why a Second Device Is Your Most Useful Diagnostic Test

Primescan 2 is built around a cloud-connected workflow, so the scanner is not tied to one dedicated workstation the way older systems were. In practice, that gives you a clean A/B test: same scanner, same patient workflow, different device.

The logic is simple:

Works on Device B: the scanner can still capture and deliver data, so the fault likely sits with Device A or its connection.
Fails on both: the problem may be the scanner, or something shared by both devices, such as the Wi-Fi network, account access, or a practice-wide setting.

That distinction saves time. Without it, teams often recalibrate, swap batteries, or reboot repeatedly when the scanner was never the issue.

How to Run the Same-Scanner, Different-Device Test Properly

A casual test can mislead you. A controlled one takes about ten minutes.

Keep the Variables Fixed

Change only the device. Use the same:

Primescan 2 and the same battery
User login and account
Operatory, if practical
Wi-Fi network

If you switch the device and the room together, you won't know which one made the difference.

Record What Actually Happens

Write down the result on each device rather than relying on memory. Note:

Where the process stops (login, scanner recognition, scan screen, or during capture)
Any message displayed, copied exactly as shown
Whether the failure is immediate or intermittent
Which browser and operating system the device uses

Exact wording matters. Please don't guess at error codes; a precise note of what appears on screen is far more useful to a technician than a paraphrase.

Reading the Result: What Each Pattern May Suggest

What You Observe	What It May Suggest	Recommended Next Step
Works on Device B, fails on Device A	Browser, cache, permissions, OS, or device-level issue	Work through the device checks below
Works on Device B, fails on Device A, even on the same network	Problem is likely specific to Device A, not the network	Test a different browser on Device A
Fails on both devices, same network	Network, account, or scanner	Test on a different network if possible
Fails on both devices, different networks	Stronger indication of a scanner-side issue	Confirm battery and sleeve, then consider professional diagnosis
Works in one operatory, fails in another	Local Wi-Fi coverage or interference	Test signal and network in the failing room
Intermittent on every device	Possible scanner-side or power-related fault	Document the pattern; evaluation may be appropriate

Treat the table as a guide for reasoning, not a verdict. A single test rarely proves hardware failure, but a consistent pattern across several devices narrows the field quickly.

Clinic-Side Fixes When One Device Fails and the Other Works

When the scanner behaves on Device B, focus your effort on Device A. Nothing here involves opening or modifying the scanner.

Browser and Device Checks

Start with the easiest causes to rule out:

Try a different browser on the failing device. If the scan workflow loads in one browser but not another, the issue is almost certainly browser-related.
Clear cache and cookies, then sign in again.
Check for pending updates to the browser or operating system.
Disable extensions temporarily, including ad blockers or privacy tools that may interfere with a web-based session.
Confirm the tablet or computer is not in a power-saving mode that restricts network or background activity.
Restart the device and reconnect rather than resuming an old session.

Network and Security Settings

A device can sit on the same Wi-Fi as a working one and still be treated differently. Practice IT settings, firewalls, VPN software, or endpoint security may be applied to one machine but not another.

If the failing device is a managed workstation, ask whoever supports your IT whether it carries restrictions the working device doesn't. Dentsply Sirona's documentation and your DS Core administrator are the right sources for the specific requirements your setup must meet, and this article doesn't try to substitute for them.

When the Problem Follows the Scanner Across Devices

If you've tested more than one compatible device and the same failure appears each time, the diagnostic picture changes.

Repair clue: If the same problem follows the Primescan 2 across different devices, operatories, and browsers, suspicion shifts away from the local environment and toward the scanner itself.

Before drawing that conclusion, confirm the basics: a known-good battery, a clean and undamaged sleeve and optical window, and a stable connection. Once those are ruled out, a fault that persists across devices is a stronger repair indicator than any single failed session.

At that point, Dentsply Sirona intraoral scanner repair evaluation is a reasonable next step. Professional diagnosis can determine whether the cause lies inside the Primescan 2 rather than in your supporting equipment.

Don't Let Neighboring Problems Muddy the Test

Several other issues can look similar to a device problem. If your symptoms are better described by one of these, address it separately:

Battery or charging that behaves inconsistently
Wi-Fi dropouts that occur in only some rooms
Scan quality or accuracy complaints unrelated to loading or connecting
Calibration problems

Repair.Dental's intraoral scanner troubleshooting guides cover these topics individually, so you can follow the one that matches your situation without mixing diagnoses.

What to Avoid While Troubleshooting

Under patient-schedule pressure, it's tempting to try anything. A few things are best left alone:

Don't open the scanner or attempt internal repair. Damage from DIY attempts can complicate an otherwise straightforward diagnosis.
Don't change multiple variables at once. It makes the result impossible to interpret.
Don't assume a sleeve or battery swap solved the problem after a single successful scan. Intermittent faults often return.
Don't ignore patterns. Failures at the same stage on every device are informative.

Preparing Your Primescan 2 for Professional Evaluation

If your tests point toward the scanner, a little preparation helps the evaluation go faster.

Gather your notes: which devices were tested, what happened on each, and exactly what was displayed.
Note whether the issue is constant or intermittent.
Include the battery you used and whether others were tried.
Print a shipping label for the scanner when you're ready to send it in.
Once it's on its way, you can track the repair as it progresses.

Practices that want to see how others have experienced the process can also read customer reviews of Repair.Dental before deciding.

Primescan 2 Device Problem FAQs

Can a Primescan 2 work on one tablet but not another?
Yes. Because the workflow depends on the connected device, a browser, settings, or network restriction on one tablet can cause failures that don't appear on another. That is why testing a second device is such a useful first step.

Does Primescan 2 not working on a computer mean the scanner is broken?
Not necessarily. If it works on another compatible device, the computer is the more likely cause. A scanner fault becomes more plausible when the failure follows the scanner across devices.

Should I clear the browser cache for a Primescan 2 DS Core browser issue?
It's a reasonable, low-risk step. Clearing cache and cookies, trying a different browser, and signing in again can resolve many session problems on the affected device.

What if the Primescan 2 fails on every device I try?
Check whether the devices share a network or account, then try a different network if possible. If it still fails with a known-good battery and a clean sleeve, a scanner-side issue becomes more likely, and professional evaluation may be appropriate.

Where can I find answers to other repair questions?
Repair.Dental's repair FAQ covers common questions about the repair process.

Scanner Fault or Device Problem? Know When to Call for Repair

A Primescan 2 that works on one device and not another usually points to the device, browser, or network. A Primescan 2 that fails consistently across several devices, with a good battery and a clean sleeve, points more strongly toward the scanner.

Rule out the easy causes first, document what you see, and let the pattern guide your decision. Repeating the same checks without a new result only extends downtime.

If your testing suggests the fault is inside the scanner, contact Repair.Dental to arrange a diagnosis. Our team can determine whether your Primescan 2 has a repairable fault and help your practice get back to reliable scanning without more trial and error.

For more insights on professional dental equipment repair, please visit Repair.Dental or follow us on Facebook & Instagram.

Primescan 2 Works on One Computer or Tablet but Not Another: Scanner or Device Problem?