Project Overview
Hotel Royal Ambarrukmo, a 5-star hotel in Yogyakarta, relies on a Point-to-Point (PTP) wireless link connecting the main building to its laundry facility. This link is mission-critical, serving as the main communication channel for laundry management, inventory tracking, and operational coordination. Any downtime can impact hotel services, making link reliability urgent.
Table of Contents
During routine monitoring, the PTP link experienced intermittent disconnections, prompting a systematic troubleshooting and optimization approach.
Client
- Client: Hotel Royal Ambarrukmo Yogyakarta (5-star)
- Link Function: Main communication link for laundry operations, supporting operational continuity across the property.
- Device Used: XST Lite5 AC (both ends)
Problem Identification
- Issue: Intermittent PTP wireless disconnections, high latency, and sporadic drops.
- Impact: Disrupted laundry operations, potential delays in guest services, and operational inefficiency.
Troubleshooting Steps & Metrics
| Step | Action | Latency | Packet Loss |
|---|---|---|---|
| 1 | Initial Antenna Alignment | 25 - 40 ms | 5 - 10% |
| 2 | Single-Side Device Replacement (Laundry) | 20 - 35 ms | 15 - 20% |
| 3 | Dual-Side Device Replacement & Final optimization | 2 - 5 ms | 0% |
Challenges / Lessons Learned
- Antenna alignment alone may not resolve issues if the hardware is degrading.
- Replacing only one side can provide minor improvement, but for critical links, dual-side replacement may be necessary.
- Frequency optimization and LAN/RJ45 cable inspection are essential to rule out environmental or physical factors.
- The primary root cause was device degradation, requiring simultaneous replacement on both ends for reliable connectivity.
Tools & Technologies
- XST Lite5 AC PTP Wireless Radios
- Spectrum Analyzer / Signal Strength Tools
- Ping & Latency Monitoring
- Network Management Tools (WinBox)
Technical Notes / Best Practices
- Always perform line-of-sight checks before installation.
- Use spectrum analysis to detect and avoid interference.
- Proactively replace aging devices to prevent critical downtime.
- Perform precise antenna alignment and verify signal strength.
- Regularly monitor latency, packet loss, and uptime.
- Inspect and maintain all LAN cables and RJ45 connectors to ensure physical integrity.
Outcome & Benefits
- Achieved stable, low-latency PTP connectivity between hotel and laundry.
- Ensured operational continuity for mission-critical hotel services.
- Demonstrated hands-on expertise in wireless troubleshooting, device replacement, and precise link alignment.
- Highlighted ability to systematically resolve urgent connectivity issues in a high-stakes hospitality environment.