Written by Jason Feemster, POS specialist with 15+ years of experience helping restaurants and retailers troubleshoot POS systems, payments, and hardware issues.
Common Issue: MICROS POS gets stuck in Offline Mode and won’t reconnect to the server or processor.
Fast Fixes: Restart workstation and BOH server, verify network connection, check IP settings, and restart MICROS services.
Need official help? See our MICROS POS Support Guide
Want guided troubleshooting? Try the POSUSA POS Support Assistant (Free).
MICROS POS stuck in Offline Mode? This usually happens when the terminal can’t reach the back-of-house server or payment gateway. You might still print tickets and take orders, but credit cards may not process—causing chaos during service.
Here’s how to quickly get MICROS out of Offline Mode and restore full connectivity.
Table of Contents
Common Reasons MICROS Gets Stuck in Offline Mode
- Workstation lost connection to BOH server
- Network switch or router rebooted or disconnected
- Payment processor or gateway outage
- Incorrect or lost IP settings
- CAL or database service stopped running on the server
- Firewall or antivirus blocking communication
How to Fix MICROS POS Stuck in Offline Mode
1. Restart Your MICROS Workstation
A simple restart resets the MICROS client software and often restores communication.
- Shut down the workstation completely
- Wait 10–15 seconds
- Power it back on
If it reconnects to the server and gateway, Offline Mode will usually clear automatically.
2. Reboot the BOH Server
If the server crashes or loses network communication, all terminals will get stuck offline.
- Restart CAL and Database services
- Reboot the BOH server if needed
- Check server network connectivity
Server reboots often fix system-wide connectivity issues after a power outage or overload.
3. Check Ethernet Cables and Switch Connections
Offline Mode can trigger if MICROS loses even a momentary network connection.
- Verify workstation Ethernet cable is secure
- Check switch/router link lights
- Test a different switch port or cable
Loose cables are the #1 cause of random Offline Mode issues in restaurants.
4. Confirm Static IP Address Settings
If the workstation pulls a new IP from DHCP, MICROS may lose communication with the server.
- Check network settings for correct static IP
- Verify subnet matches BOH network
- Ping the server’s IP from the workstation
Static IPs are required in most MICROS environments for stable database and payment routing.
5. Restart MICROS CAL and Database Services
If CAL stops running, terminals lose communication and drop into Offline Mode instantly.
- Open Windows Services on the BOH
- Restart “MICROS CAL”
- Restart “MICROS Database”
If CAL repeatedly shuts down, you may have underlying server issues to address soon.
6. Check Payment Gateway Status
Even if MICROS can reach the server, a gateway outage can still cause Offline Mode.
- Check credit card processor dashboard
- Retry test card transaction
- Confirm BOH can reach the internet
If payments still fail after network is restored, contact your gateway provider.
7. Disable Firewall for Testing
Security software can mistakenly block MICROS ports used for server communication.
- Temporarily disable Windows firewall on BOH server
- Test connectivity
- Re-enable with proper exceptions afterward
Only disable firewall features temporarily to prevent vulnerabilities.
When to Contact MICROS Support
- Offline Mode persists after network and BOH resets
- Database won’t launch or keeps crashing
- Multiple terminals offline system-wide
- Credit cards fail even after reboot and reconnection
👉 MICROS POS SUPPORT – Phone & Online Customer Service
MICROS Offline Mode – FAQs
Why does MICROS go into Offline Mode?
Can you still take payments in Offline Mode?
Do static IP issues cause Offline Mode?
What if the entire restaurant is stuck offline?
Try the POSUSA POS Support Assistant
Need step-by-step help getting MICROS out of Offline Mode?
- POSUSA POS Support Assistant
- Select MICROS
- Type: “offline mode”
- Follow the guided troubleshooting flow
It’s fast, free, and designed for real restaurant environments.
Thinking About Switching POS Systems?
If you’re dealing with repeated POS issues, it might be time to compare more reliable options built for restaurants and retail businesses.
Takes 30 seconds • No sales pressure
