Hi there! I understand you're getting a Network Error message when trying to log in to the ECG app on your Mac running OS X 10.15. To get started, could you tell me:

- Is this issue happening only with the ECG app or with other apps or websites as well?
- Are you connected via Wi-Fi or Ethernet?
- Have you tried any steps already, like restarting your Mac or your network?

This info will help me guide you better. Meanwhile, I can suggest some initial troubleshooting steps:

1. Check Your Internet Connection
Make sure your Mac is connected to the internet by opening a browser and visiting a reliable website. If websites load fine, your internet is working.

2. Restart the ECG App and Your Mac
Quit the ECG app completely and reopen it. Sometimes restarting the app clears temporary network glitches. If that doesn’t help, restart your Mac.

3. Check for App Updates
Verify if there’s an update available for the ECG app in the App Store. An update might fix network-related bugs.

4. Network Settings Reset
On your Mac, try turning Wi-Fi off and back on. If using Ethernet, test the connection by unplugging and replugging the cable.

5. Firewall and Security Software
Sometimes firewall or security settings block the app from accessing the network. Check your Mac’s firewall settings in System Preferences > Security & Privacy > Firewall. You might want to temporarily disable the firewall to test if it’s the cause.

6. VPN or Proxy
Are you using a VPN or proxy service? They can sometimes interfere with network connections. If yes, try disabling it and logging in again.

If these steps don’t resolve the problem, please let me know what you tried and any error details you see. Then we can explore more advanced solutions like app permission checks or network diagnostics.

How does that sound? Would you like me to guide you through any of these steps specifically?

iPhone iOS 26. Have deleted and reinstalled app on iPhone and now cannot Log in. Just get Network Error message. On iPad I can take Measurement (using H19 device) but countdown stops at 001 seconds and screen freezes.

Thanks for sharing these details! It sounds like you’re encountering two related but distinct issues after updating your iPhone to iOS 26 and reinstalling the ECG app: a persistent Network Error on the iPhone and the measurement freeze on your iPad with the H19 device.

Based on recent reports, iOS 26 has been causing network connection glitches and app freezes for some users, which aligns with your experience. Here’s a tailored set of troubleshooting steps to help you resolve these problems on both devices:

### For your iPhone (Network Error in ECG app after reinstall on iOS 26):

1. Check Network Connectivity Independently
Open Safari on your iPhone and browse a few websites to confirm the internet connection is stable.

2. Toggle Airplane Mode
Turn on Airplane Mode for about 20 seconds, then turn it off. This can reset your phone’s network connections.

3. Reset Network Settings
Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.
This resets Wi-Fi, Bluetooth, and cellular settings, which often clears stubborn network issues. (Note: It will forget saved Wi-Fi passwords.)

4. Check App Permissions
Ensure the ECG app has permission to use cellular data and Wi-Fi if applicable: Settings > ECG app and toggle on permissions.

5. Update iOS or App
Sometimes Apple releases quick patches after initial updates. Verify your iPhone iOS version is the latest available, and your ECG app is updated.

6. Wait or Roll Back
If Apple recognizes this widespread issue, they may release a fix soon. If the problem persists and is blocking your use critically, some users choose to temporarily downgrade iOS—but that is more advanced and requires help.

---

### For your iPad with H19 measurement freeze:

1. Restart Both iPad and H19 Device
Power off the iPad and turn it back on. Also, turn the H19 device off and on, then try again.

2. Check Bluetooth Connection
Ensure the H19 device is paired correctly and hasn't dropped connection mid-measurement.

3. Force Close and Reopen ECG App
On iPad, swipe up from the bottom (or double press Home button) to force close the app, then relaunch it.

4. Verify iPad Software is Updated
Check for any available updates for your iPad. Sometimes app compatibility updates coincide with OS updates.

---

### Additional Notes

- Multiple users have posted similar Network Error and freezing issues after iOS 26 updates with apps requiring constant network and Bluetooth interaction. Temporary fixes like network resets or toggling Bluetooth may help, but awaiting an official patch is often needed1 2.

- If you want, I can send you links with visual guides for performing network resets or app permissions adjustments on iOS devices.

Would you like me to walk you through any of these steps in more detail? Also, can you confirm your iPad’s iOS version and whether it is also on iOS 26? That way I can tailor suggestions precisely for both of your devices.