# Browser Permissions

If the POS in a browser tab can't reach your Epson or Star printer, though it's on and on the same network, start with [Fix it in this order](#fix-in-order). The desktop app doesn't need these fixes.

## What you'll see[​](#symptom "Direkter Link zu What you'll see")

In **Settings → Printing → Add printer**, the scan finds nothing (**No printer found**), or you enter the printer's address and its card says **No connection**, though the printer is on and on the same network. Or the same printer prints from the desktop app and not from the browser tab.

After a failed test page, the app may say **The app was not allowed to reach the printer. Allow it in your system settings, then try again.** In a browser this means the browser couldn't reach the printer. Check that the printer is on and its address is right, then work through the fixes below. Both screens are [labelled further down](#on-screen).

## Fix it in this order[​](#fix-in-order "Direkter Link zu Fix it in this order")

In Safari or Firefox, start with [what works there](#safari-and-firefox). In Chrome or Edge:

1. [Allow local network access](#allow-local-network-access), then check again.

2. If it still fails, find the printer's **Port**: in **Edit printer** for a saved printer, or under **Enter an IP address** when you add one. The port tells you whether the POS uses HTTPS or plain HTTP:

   | Printer | HTTPS port          | HTTP port          |
   | ------- | ------------------- | ------------------ |
   | Epson   | **8043** or **443** | **8008** or **80** |
   | Star    | **443**             | **80**             |

   Then follow one route:

   * **HTTPS port:** [trust the printer's certificate](#the-printers-certificate), then check again.
   * **HTTP port:** see [When the printer uses HTTP](#mixed-content).

3. Still **No connection**, or the test still fails? See [Still stuck?](#still-stuck)

### Check again[​](#check-again "Direkter Link zu Check again")

* **Adding a printer:** press **Enter an IP address**, then **Check this address**. When the card shows **Ready**, the browser can reach the printer: go on to [Print a test page](/de/hardware/receipt-printers/printer-setup-wizard.md#test-page).
* **A printer you've already saved:** in **Settings → Printing**, press **Test Print** on its row, or in **Edit printer**.

Still failing after allowing local network access? [Find the port](#fix-in-order) (step 2). Still failing after your port's route? See [Still stuck?](#still-stuck)

[HTTPS or HTTP](#https-or-http) has screens that show where to read the port.

## Allow local network access[​](#allow-local-network-access "Direkter Link zu Allow local network access")

Chrome and Edge ask before a website may reach a device on your local network. The prompt asks to **Access other devices on your local network**. Allow it.

If someone chose **Never allow**, or closed the prompt:

1. Click the icon at the left of the address bar, then **Site settings**.
2. Set **Local network** to **Allow**.
3. Reload the POS and [check again](#check-again).

## The printer's certificate[​](#the-printers-certificate "Direkter Link zu The printer's certificate")

Over HTTPS the printer shows its own certificate. If this browser doesn't trust it, the connection fails before anything is sent. These steps let this browser connect.

1. Make sure the printer has a certificate. If its status sheet shows none, create a self-signed certificate in the printer's web configuration. On an Epson, log in the way [Epson Secure Printing](/de/hardware/receipt-printers/epson-secure-printing.md#turn-it-off) describes.

2. In the same browser, open the printer's address over HTTPS, using your printer's own IP address:

   * **Epson:** try `https://192.168.1.200:8043` first. If that doesn't open, try `https://192.168.1.200`, which is port 443.
   * **Star:** `https://192.168.1.200`, which is port 443.

3. Accept the certificate warning. Open the steps for your browser:

   Chrome

   On **Your connection is not private**, press **Advanced**, then **Proceed to 192.168.1.200 (unsafe)**.

   Edge

   Press **Advanced**, then **Continue to 192.168.1.200 (unsafe)**.

   Safari

   On **This Connection Is Not Private**, press **Show Details**, then the **visit this website** link, then **Visit Website**.

   Firefox

   Use the warning's own option to continue to the site.

4. Go back to the POS and [check again](#check-again).

Do this in every browser on every computer that prints.

The desktop app accepts the printer's certificate itself. That's why the same printer can work there and not in the tab.

## When the printer uses HTTP[​](#mixed-content "Direkter Link zu When the printer uses HTTP")

If your store's address starts with `https://` and the printer only has plain HTTP, print from Chrome or Edge 142 or newer and [allow local network access](#allow-local-network-access).

Other browsers block it: a secure page may not send to an insecure address, which browsers call mixed content. If you can't use Chrome or Edge, switch the printer to HTTPS with a [certificate](#the-printers-certificate), or use the desktop app.

## Safari and Firefox[​](#safari-and-firefox "Direkter Link zu Safari and Firefox")

* **Over Wi-Fi:** the printer has to match the store. From an `https://` store only HTTPS works, once you've [accepted the certificate](#the-printers-certificate); plain HTTP is blocked. From an `http://` store, plain HTTP works.
* **USB and Bluetooth:** **Find a USB printer** and **Find a Bluetooth printer** appear only in browsers that can reach those devices, Chrome and Edge.

For anything else, use Chrome or Edge, or the desktop app.

## Where the POS shows it[​](#on-screen "Direkter Link zu Where the POS shows it")

In **Edit printer**, a failed **Test Print** shows **The app was not allowed to reach the printer**:

![Edit printer after a failed Test Print to 192.168.1.128 on port 8008: a red box reading The app was not allowed to reach the printer. Allow it in your system settings, then try again, with Having trouble? beside it, Support details under it, and Open drawer, Test Print and Close at the foot](/img/2.x/hardware/printers/browser-permissions/en/tablet-light-regular--h12-8-support-details.png)123456

1. **IP Address** — the printer's address, from its status sheet.
2. **Port** — 8008 is Epson's plain HTTP port. See [HTTPS or HTTP](#https-or-http).
3. **The app was not allowed to reach the printer** — in a browser this shows whenever the browser couldn't reach the printer: it may be off or at another address, the local network permission may be off, or its certificate isn't trusted. Check the address, then work through [the fixes in order](#fix-in-order).
4. **Having trouble?** — opens the printer guide.
5. **Support details** — opens the details to copy for support. See [Still stuck?](#still-stuck)
6. **Test Print** — try again after each fix.

In **Add printer**, after **Check this address**, a printer the browser can't reach has a greyed-out card:

![The Add printer panel after Check this address: No printer found, a Receipt Printer card for 192.168.1.200, Epson, Wi-Fi, greyed out with No connection, and the buttons to try another way](/img/2.x/hardware/printers/browser-permissions/en/tablet-light-regular--j1-2-no-connection.png)1234

1. **The printer's card** — **No connection** means the browser got no answer at that address. Work through [the fixes in order](#fix-in-order).
2. **Enter an IP address** — check the address again once you've fixed it.
3. **More options** — choose **Epson** or **Star Micronics**.
4. **Open the printer guide** — the [printer guide](/de/hardware/receipt-printers.md).

## HTTPS or HTTP[​](#https-or-http "Direkter Link zu HTTPS or HTTP")

The browser reaches the printer's web server on one of the ports in [the table above](#fix-in-order). The port decides between HTTPS and plain HTTP.

* **HTTPS** needs a certificate on the printer that this browser trusts. See [the printer's certificate](#the-printers-certificate).
* **HTTP** from an HTTPS store needs Chrome or Edge 142 or newer and the [local network permission](#allow-local-network-access). See [When the printer uses HTTP](#mixed-content).

For a saved printer, **Edit printer** shows which one it uses under **Web print endpoint**:

![Edit printer for an Epson at 192.168.1.128 on port 8008, Detected: Epson, and the Web print endpoint http://192.168.1.128:8008/cgi-bin/epos/service.cgi, Using Epson ePOS over HTTP. Chrome or Edge may ask for permission to access your local network](/img/2.x/hardware/printers/browser-permissions/en/tablet-light-regular--h12-3-web-print-endpoint.png)1234

1. **IP Address** — the printer's address.
2. **Port** — 8008 here, Epson's plain HTTP port. On an HTTPS store a new Epson starts at **8043**, which uses HTTPS.
3. **Web print endpoint** — the address the browser sends the receipt to. It starts with `http://` for plain HTTP and `https://` for HTTPS.
4. **The line under the endpoint** — the vendor and HTTPS or HTTP in words. Over HTTP it adds that Chrome or Edge may ask for the [local network permission](#allow-local-network-access); over HTTPS, that the printer needs a certificate this browser trusts ([the printer's certificate](#the-printers-certificate)).

![Enter the printer's IP address: 192.168.1.200 in IP Address, 8043 in Port, and Check this address](/img/2.x/hardware/printers/browser-permissions/en/tablet-light-regular--j1-1-address-port.png)123

1. **IP Address** — from the printer's status sheet.
2. **Port** — on an HTTPS store it starts at Epson's HTTPS port, **8043**.
3. **Check this address** — tries the usual Epson and Star ports, HTTPS and HTTP, and keeps the one that answers.

The browser can print to Epson and Star only.

The card names the wrong maker

Change it under **More options**:

![More options open under the No connection card: Printer Name, and the Vendor switch set to Epson, with Star Micronics beside it](/img/2.x/hardware/printers/browser-permissions/en/tablet-light-regular--j1-3-vendor.png)1

1. **Vendor** — **Epson** or **Star Micronics**.

## Still stuck?[​](#still-stuck "Direkter Link zu Still stuck?")

Use **Copy setup report** and paste it into your message. It's on the **Nothing printed** screen after a failed test page, and in the menu of a saved printer. It records the address, the port and what was tried. On the **Nothing printed** screen, **Support details** also shows which browser you used.

[Discord Community](https://wcpos.com/discord)<support@wcpos.com>

## Related Documentation[​](#related-documentation "Direkter Link zu Related Documentation")

[PrintersWhat each app can connect to, and every printer page.](/de/hardware/receipt-printers.md)

[Printer Setup WizardAdd a printer, print the test page, and fix it if nothing comes out.](/de/hardware/receipt-printers/printer-setup-wizard.md)

[Epson Secure PrintingA new Epson that appears to send and prints nothing.](/de/hardware/receipt-printers/epson-secure-printing.md)