Why is my device unable to access my QNAP NAS?
Applicable Products
Software
- QuFirewall 2.4.1 and later
Operating Systems
- QTS
- QuTS hero
- QuTScloud
- QVP
Scenario
If you're unable to access your QNAP NAS, investigate potential changes in your device's firewall settings, including both Security and QuFirewall applications. It's possible your device's IP address was unintentionally added to a deny rule within either firewall, blocking its access to the NAS.
Workaround
If you are unable to access your QNAP NAS using your Windows or macOS device, explore these suggested workarounds as troubleshooting measures:
QuFirewall Configuration and Management
Unblock your device's IP address in QuFirewall, and then add the IP address to the allow list.
For details, see Did QuFirewall block my device, preventing it from connecting to the NAS?.
QTS Security Configuration and Management
If QuFirewall is not installed on the NAS, make sure that the security settings in Control Panel are not preventing your device from accessing the NAS.
- Connect a different computer that can access the NAS.
- Log in to QTS as an administrator.
- Go to Control Panel > System > Security > Allow/Deny List.
- Select an option.
Option Description User Action Allow all connections The NAS can connect to all IP addresses and network domains. Select Allow all connections. Use IP deny list The NAS cannot connect to any IP address or network domains included in the IP deny list. - Select Deny connections from the list.
- Click Add.
The IP configuration window appears. - Specify an IP address, netmask, or IP range.
- Click Create.NoteTo remove an IP address, netmask, or IP range, select an entry from the table, then click Remove.
Use IP allow list The NAS can only connect to the IP addresses or network domains included in the IP allow list. - Select Allow connections from the list only..
- Click Add.
The IP configuration window appears. - Specify an IP address, netmask, or IP range.
- Click Create.NoteTo remove an IP address, netmask, or IP range, select an entry from the table, then click Remove.
- Click Apply.
- If your device remains blocked by the NAS, review the System Access Logs in QuLog Center to identify the root cause and report it to QNAP Customer Service.
- If you are still unable to access the NAS using any device, you may need to reset the NAS. For details, see System reset and restore to factory default.
