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 terminals slow to respond, lag when switching menus, or freeze during service.
Fast Fixes: Restart terminals, check network quality, close unused apps, ensure server connectivity.
Need official help? See our MICROS POS Support Page
Want guided troubleshooting? Try the POSUSA POS Support Assistant (Free).
MICROS running slow? If terminals lag while ringing in items or screens freeze during rushes, it costs time and disrupts service. Performance issues typically point to network or server load problems.
This quick guide covers the most common speed problems and how to fix them fast.
Table of Contents
Common Reasons MICROS Gets Slow or Unresponsive
- Weak or unstable network connection
- Terminals not rebooted recently
- Server overloaded or failing to sync
- Background processes consuming resources
- Too many open checks or guests in the system
- Corrupted cached data on clients
Pro tip: If lag only happens during peak hours, the server might be overloaded or the Wi-Fi network congested.
How to Fix MICROS Performance and Speed Issues
1. Restart the Affected MICROS Terminal
This clears cache, reloads processes, and restores normal responsiveness.
- Log out of MICROS
- Restart device completely
- Log back in and test speed
2. Check Network Strength and Stability
Lag is often due to poor Wi-Fi or network congestion, especially on older hardware.
- Test another POS station on the same network
- Move closer to access point (if wireless)
- Ensure POS devices use 5GHz when possible
Pro tip: POS terminals should be wired whenever possible to avoid Wi-Fi interference.
3. Close Unused Checks and Clear Old Data
Terminals can lag if overloaded with open orders and stored sessions.
- Transfer or settle completed checks
- Close unused tabs and windows
- Reduce held or voided orders sitting open
4. Restart or Check the MICROS Server
A struggling server slows every terminal connected to it.
- Check server hardware lights/status
- Reboot server during slow shifts if necessary
- Monitor for error prompts or sync failures
5. Check for Outdated Hardware or Configuration
Older terminals may require maintenance or upgrades to keep up with current menu sizes and order volume.
- Compare performance to newer terminals
- Look for fans running loud or device overheating
When to Contact MICROS Support
- Lag impacts multiple terminals regardless of restarts
- Performance slows dramatically during peak periods
- Server health warnings appear
- Terminals disconnect frequently
👉 MICROS POS SUPPORT – Phone & Online Customer Service
Support can check server utilization, memory issues, and database inconsistencies causing performance drops.
MICROS Slow Performance – FAQs
Why does MICROS lag more during dinner rush?
Is slow MICROS always a network issue?
Will rebooting terminals help?
Can more RAM or a new server speed everything up?
Try the POSUSA POS Support Assistant
Need help pinpointing what’s causing MICROS lag?
- POSUSA POS Support Assistant
- Select MICROS
- Search: “micros slow”
- Follow the guided troubleshooting
Faster POS performance helps your team serve guests quicker, with fewer delays.
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
