When Messages Won't Send
SMS is reliable, but occasional issues happen. This guide helps you identify and fix common problems.
Connection Issues
Problem: "Not Connected" on Web Interface
Symptoms:
Web shows "Waiting for device" or "Disconnected"
Messages queue but don't sendSolutions:
1. Check your phone's internet connection (WiFi or mobile data)
2. Open the Group SMS app on your phone
3. Ensure the app is logged in with the same number
4. Check if the app needs to be updated
5. Try closing and reopening the appProblem: Phone Shows No Internet
Solutions:
1. Toggle WiFi off and on
2. Toggle Airplane mode on and off
3. Restart your phone
4. Check if other apps have internet accessApp-Related Issues
Problem: App Crashes or Freezes
Solutions:
1. Force close the app
2. Clear app cache (Settings > Apps > Group SMS > Clear Cache)
3. Restart your phone
4. Reinstall the app if problems persistProblem: Messages Stuck in Queue
Symptoms:
Messages show "Sending..." but never complete
Progress bar doesn't moveSolutions:
1. Check internet connection
2. Ensure app has SMS permissions
3. Check if your phone's default SMS app changed
4. Restart the sending processProblem: Permission Errors
Symptoms:
"SMS permission denied" errors
App can't access contactsSolutions:
1. Go to Settings > Apps > Group SMS > Permissions
2. Enable SMS permission
3. Enable Contacts permission (if needed)
4. Restart the appDelivery Failures
Problem: Messages Sent But Not Received
Possible Causes:
Recipient's number is incorrect
Recipient's phone is off or out of range
Carrier blocking (spam filter)
Recipient has blocked your numberWhat to Try:
1. Verify the phone number is correct
2. Ask recipient to check spam/blocked messages
3. Send a test message from your phone's default SMS app
4. Try removing special characters from your messageProblem: Only Some Messages Fail
Likely Causes:
Invalid phone numbers in your list
Mix of valid and invalid numbersSolutions:
1. Review failed numbers for typos
2. Remove invalid entries from your contact list
3. Check number formatting (country codes, etc.)Carrier-Related Issues
Problem: Carrier Blocking Messages
Symptoms:
Messages send from app but never arrive
Works for some recipients but not othersSolutions:
1. Review message content for spam triggers
2. Remove URL shorteners (use full URLs or no links)
3. Reduce sending frequency
4. Contact your carrier if problems persistProblem: Rate Limiting
Symptoms:
First messages send fine
Later messages fail or slow down dramaticallyExplanation:
Carriers limit how many messages you can send quickly to prevent spam.
Solutions:
1. Wait and let queued messages send naturally
2. Don't send to hundreds of people simultaneously
3. Group SMS automatically paces messages to help with thisAccount Issues
Problem: Can't Log In to Web Interface
Solutions:
1. Verify you're using the same phone number as the app
2. Check if verification code arrives on your phone
3. Try a different browser
4. Clear browser cache and cookiesProblem: Web and App Out of Sync
Symptoms:
Contacts show differently
Messages appear on one but not the otherSolutions:
1. Pull down to refresh in the app
2. Refresh the web page
3. Log out and log back in on bothWhen Nothing Works
Contact Support
If you've tried everything:
1. Note the exact error message
2. Note what you were trying to do
3. Check what troubleshooting you've already tried
4. Reach out through the app's support optionTemporary Workaround
While troubleshooting:
Use your phone's native SMS app for urgent messages
Manually copy recipient numbers and send individually if neededPrevention Tips
To avoid future issues:
Keep the app updated
Maintain good internet connectivity
Don't send too many messages at once
Regularly clean up invalid contacts
Periodically restart your phoneConclusion
Most SMS issues have simple solutions. Work through this checklist systematically, and you'll usually find the fix. If problems persist, don't hesitate to reach out for support.