This is a chart with the most frequently asked questions regarding the troubleshooting of the MT48. Please find a more detailed version attached to this article as a pdf file.
| Issue / Question | Cause | Resolution | |
| 1 | MT 48 won’t power on | Insufficient power from switch or wall outlet | Use original PSU and wait 10 s; ensure PoE+ switch and sufficient power budget; try another outlet; USB data cable must remain connected. |
| 2 | MT 48 feels warm | Normal operation | The aluminum enclosure acts as a heat sink; warmth is expected. You can adjust fan control. |
| 3 | Talkback mic not working | Inst Line 4 connected disables Talkback | Disconnect Inst Line 4 input to enable Talkback. |
| 4 | Red Agent icon / “Subnet conflict” error | IP conflict between AES67 Ravenna and USB C Data | Use only one connection type; disconnect either USB C Data or AES67. |
| 5 | Windows PC not recognizing MT 48 | Outdated or missing driver | In Device Manager → Audio Inputs/Outputs, right-click → Update Driver; reinstall latest MT 48 Toolkit if needed. |
| 6 | MT 48 not visible in Web Control App | Loose USB connection or improper driver install | Reinstall MT 48 Toolkit; avoid USB hubs; try another port; check version via MENU → SETTINGS → INFO. |
| 7 | Firmware / update issues | Outdated firmware or browser limitation | Use Neumann Agent → Show Available Updates; use Chrome; update sequentially (v1.6.2 → 1.6.3 → 1.8.0); don’t interrupt update. |
| 8 | Touchscreen unresponsive / discolored | Outdated firmware | Update firmware using latest MT 48 Toolkit; reboot unit. |
| 9 | Launch Remote Controller won’t open (Windows) | Missing components (Bonjour, Visual C++) | Uninstall Bonjour & Visual C++ 2015–2019; reinstall both via MT 48 Toolkit; reboot and retry. |
| 10 | No sound, but DAW shows levels | Incorrect routing | Verify DAW output routing; use ASIO/CoreAudio driver; check MT 48 output pairs; raise output level. |
| 11 | Delay when monitoring mic | Latency | Reduce buffer size (64 samples); use MT 48 DSP for direct monitoring; disable DAW input monitoring. |
| 12 | Dropouts during record/playback | Latency or driver issues | Use MT 48 ASIO/CoreAudio; disable heavy plugins; optimize OS audio settings. |
| 13 | Project plays back at wrong speed | Sample rate mismatch | Match DAW sample rate with MT 48 setting under SETTINGS → GENERAL. |
| 14 | Crackling / popping audio | Latency or USB issues | Use original USB cable (no hubs); try another port; increase buffer size; optimize OS for real-time audio. |