DeviceOK
SearchDevice checks
Home / Models / Synology / Synology DiskStation DS923+

Verified model diagnostic center

Synology DiskStation DS923+

Use DeviceOK to test the client/network side of a DS923+ problem and plan transfers, while DSM, storage pools, drives and RAID remain Synology diagnostic tasks.

2 verified model facts4 relevant live tests0 exact compatibility answers0 model-specific fixesReviewed 2026-08-11

Model facts that change the troubleshooting path

01

Synology documents the DS923+ as a four-bay DiskStation NAS.

02

Synology's product manual lists two 1GbE RJ-45 LAN ports, two USB 3.2 Gen 1 ports and one eSATA port.

Documented connection paths2 × 1GbE RJ-45 · 2 × USB 3.2 Gen 1 · eSATA

Test matrix

What to test and what a pass actually tells you

Run the test closest to the symptom. A passing result narrows the diagnosis; it does not certify the entire device.

Browser Online Status TestCheck the browser online state, available connection hints, and a short round trip to DeviceOK.

A pass proves this browser can reach DeviceOK through the current network path; link negotiation and router counters require OS/router evidence.

→
Browser Latency TestMeasure several browser-to-DeviceOK request round trips as a quick connection responsiveness check.

A pass proves this browser can reach DeviceOK through the current network path; link negotiation and router counters require OS/router evidence.

→
Browser Network Timing Variation CheckRun repeated HTTP round trips to DeviceOK and show timing variation between samples.

A pass proves this browser can reach DeviceOK through the current network path; link negotiation and router counters require OS/router evidence.

→
Data Transfer Time CalculatorEstimate ideal transfer time from data size and an entered link rate.

Use the result to narrow the next branch; browser visibility is intentionally limited to the subsystem exposed by the current API.

→

Diagnostic focus

Problems worth separating on this model

01 · DSM reachable from one client but not anotherReproduce this symptom independently, then choose the closest live test or exact compatibility record before changing drivers, firmware, cables or hardware.
02 · Transfer feels slowReproduce this symptom independently, then choose the closest live test or exact compatibility record before changing drivers, firmware, cables or hardware.
03 · NAS disappears from networkReproduce this symptom independently, then choose the closest live test or exact compatibility record before changing drivers, firmware, cables or hardware.
04 · Client/network path vs drive/volume issueReproduce this symptom independently, then choose the closest live test or exact compatibility record before changing drivers, firmware, cables or hardware.
05 · Need official DSM/storage diagnosticsReproduce this symptom independently, then choose the closest live test or exact compatibility record before changing drivers, firmware, cables or hardware.

Evidence handoff

If the browser cannot reach the suspected subsystem

Keep the browser result as one observation, then move to the operating system or manufacturer diagnostic that can see the protected hardware state. Do not interpret an unsupported browser API as a failed component.

For model-specific firmware, drivers or service diagnostics, use the official Synology source linked on this page.