eSIM Connection Issues

Complete troubleshooting guide to resolve network connectivity and data connection problems

Connection Problems?

Network connectivity issues with eSIM can be frustrating, but most problems have simple solutions. Follow our comprehensive troubleshooting guide to restore your connection.

Quick Diagnostic

Check Your Connection Status
Signal Strength

Check bars in status bar

Data Icon

Look for 4G/5G/LTE

eSIM Status

Active in settings

Coverage Area

Check network map

Troubleshooting Steps

No Data Connection

Step-by-Step Solutions
Basic Checks
  1. Verify eSIM is activated and enabled
  2. Check if mobile data is turned on
  3. Ensure you're in coverage area
  4. Restart your device
  5. Toggle airplane mode on/off
Settings Check
  1. Verify eSIM is set as data line
  2. Check data roaming settings
  3. Disable Wi-Fi to test cellular
  4. Check for carrier restrictions
  5. Verify plan has data allowance
Common Cause: eSIM is not set as the primary data line. Check your cellular settings to ensure the eSIM is selected for mobile data.

Slow Internet Speeds

Speed Test Steps
  1. Run speed test on Wi-Fi first
  2. Switch to eSIM and test again
  3. Compare results
  4. Test at different times of day
  5. Try different locations
Recommended: Fast.com, Speedtest.net
Speed Optimization
  • Clear browser cache and data
  • Close background apps
  • Check for network congestion
  • Switch between 4G/5G networks
  • Reset network settings
Peak hours (7-9 PM) may have slower speeds
Network Type Expected Download Speed Expected Upload Speed Typical Use Cases
5G 100-1000 Mbps 50-100 Mbps 4K streaming, gaming, large downloads
4G LTE 20-100 Mbps 10-50 Mbps HD streaming, video calls, browsing
3G 1-10 Mbps 0.5-2 Mbps Basic browsing, email, maps

Network Registration Issues

Solutions:
  1. Wait patiently: Initial registration can take 5-15 minutes
  2. Manual network selection: Go to Settings > Cellular > Network Selection
  3. Airplane mode cycle: Turn on for 30 seconds, then off
  4. Location change: Move to area with better coverage
  5. SIM refresh: Remove and re-add eSIM profile

Troubleshooting Steps:
  1. Check if eSIM plan is active and not expired
  2. Verify you're in supported coverage area
  3. Update carrier settings (iPhone) or carrier services (Android)
  4. Reset network settings completely
  5. Contact carrier for account verification
Note: Some networks require up to 24 hours for full activation.

Advanced Solutions:
  1. Check IMEI registration with carrier
  2. Verify eSIM compatibility with your device
  3. Ensure device is not blacklisted
  4. Check for network maintenance in your area
  5. Try manual APN configuration

Roaming Connection Problems

International Roaming
Common Issues:
  • Data roaming disabled
  • Wrong network selection
  • Roaming restrictions
  • Incorrect APN settings
Solutions:
  1. Enable data roaming in settings
  2. Select partner networks manually
  3. Update roaming APN settings
  4. Check plan roaming coverage
Domestic Roaming
Common Issues:
  • Network selection locked
  • Preferred network unavailable
  • Roaming agreements
  • Coverage gaps
Solutions:
  1. Enable automatic network selection
  2. Reset preferred network list
  3. Check coverage maps
  4. Contact carrier support

iPhone Connection Issues

iPhone-Specific Troubleshooting
Settings Path

Cellular Settings:
Settings > Cellular > Cellular Plans

Key Settings to Check
  • Cellular Data: On
  • Data Roaming: On (if traveling)
  • Default Voice Line: Set correctly
  • Cellular Data: Select eSIM
iPhone Solutions
  1. Reset Cellular Settings:
    Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings
  2. Update Carrier Settings:
    Settings > General > About (wait for prompt)
  3. Cellular Plan Reset:
    Remove and re-add eSIM profile
  4. iOS Update:
    Settings > General > Software Update

Android Connection Issues

Android-Specific Troubleshooting
Settings Path

Mobile Network Settings:
Settings > Connections > Mobile Networks

Key Settings
  • Mobile Data: On
  • Data Roaming: On (if needed)
  • Preferred Network Type: Auto
  • Network Operators: Automatic
Android Solutions
  1. Clear Network Cache:
    Apps > SIM Manager > Storage > Clear Cache
  2. Reset Network Settings:
    Settings > General > Reset > Reset Network Settings
  3. Update Carrier Services:
    Google Play Store > Carrier Services
  4. Refresh SIM:
    Settings > About Phone > Status > SIM Status

APN Configuration

Important: Incorrect APN settings are a common cause of connection issues. Most eSIMs configure APN automatically, but manual setup may be needed.
iPhone APN Setup
  1. Go to Settings > Cellular
  2. Select your eSIM plan
  3. Tap "Cellular Data Options"
  4. Tap "Cellular Data Network"
  5. Enter APN details if needed
Most iPhone eSIMs configure automatically
Android APN Setup
  1. Settings > Mobile Networks
  2. Select eSIM
  3. Tap "Access Point Names"
  4. Tap "+" to add new APN
  5. Enter carrier-provided details
  6. Save and select new APN
Check with carrier for correct APN settings
Common APN Settings
Setting Common Values Description
Name Carrier name Display name for APN
APN internet, data, etc. Access Point Name
Username Usually blank Authentication username
Password Usually blank Authentication password
Authentication None or PAP Security protocol

Advanced Troubleshooting

Warning: These are advanced solutions. Proceed carefully and contact support if unsure.

When to Use:

When all other solutions fail and you have persistent connection issues.

Steps:
  1. Backup important data
  2. Reset all network settings
  3. Remove all cellular plans
  4. Restart device
  5. Re-add eSIM from scratch
  6. Reconfigure all network settings
Note: This will remove all saved Wi-Fi passwords and network configurations.

Access Diagnostic Information:
  1. Dial *#*#4636#*#*
  2. Select "Phone Information"
  3. Check radio status and signal strength
  4. Try "Refresh" or "Update"
  5. Test different radio bands
Note: Diagnostic codes vary by manufacturer and may not work on all devices.

Manual Network Registration:
  1. Turn off automatic network selection
  2. Manually search for available networks
  3. Select your carrier's network
  4. Wait for registration completion
  5. Turn automatic selection back on
iPhone Path:

Settings > Cellular > Network Selection > Manual

Android Path:

Settings > Mobile Networks > Network Operators > Manual

When to Contact Support

Contact support if you experience:
  • No connection after 24 hours
  • Persistent "Network not available" errors
  • eSIM shows as inactive despite activation
  • Connection works but no data flow
  • Speeds consistently under 1 Mbps
  • Frequent disconnections
  • Cannot access carrier network
  • Advanced troubleshooting failed
Contact Support View FAQ

Related Articles

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General Troubleshooting

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