Skip to main content

5-2 Connection Issue Troubleshooting

FLUX Support Team
  • Updated

Description

There are many reasons for being unable to connect. It may be a hardware problem, such as a control board failure, or a software problem, such as compatibility issues, network settings, environment, etc.

  • If you have only tried one connection method, please go to the link and try other methods to see if they work.
  • If you have tried all the connection methods and still can't connect successfully, please use a USB drive to send files while waiting for support from FLUX.

Please choose your connection method.

 

Possible Causes

  1. The system fails (Re-update the firmware, reset to factory, or reflash SD card.)
  2. The network signal is too weak.
  3. The network environment is not ideal.
  4. The Internet setting is having an issue. (DHCP, Static IP...etc.)
  5. The WIFI source is not able to give a frequency of 2.4 GHz.
  6. The name or password of the WIFI/network source has special characters.
  7. The WIFI dongle is malfunctioning.
  8. The USB cable is malfunctioning.
  9. The router is malfunctioning.
  10. The RPi board/RK board is malfunctioning.
  11. The software, Beam Studio is having an issue.

 

A - Wireless: WIFI Dongle


Step A1

Tighten the WIFI dongle firmly, fold the antenna 90 degrees, insert it into the USB slot of the machine, and then check whether the blue light is on.

Check if the blue light is on:

 

Step A1.1

Plug the WIFI dongle into another USB port of the machine and check again whether the blue light is on.

Check if the blue light is on:


Step A1.2

Insert a USB flash drive into one of the USB ports. Then, determine whether the drive has been read.


Determine whether the drive has been read:


Step A1.3

Reflash the SD card and check if the blue light is on.

Refer to the following links for the guide to SD card reflash.

Check if the blue light is on:


Step A2

Go to [NETWORK] and check whether the MAC address is displayed according to the WIFI connection method you are using.

  • The red is the built-in WIFI connection, which supports 2.4GHz and 5GHz (HEXA only).
    The blue is the WIFI dongle, which only supports 2.4GHz.

Check if the MAC is shown:

 


Step A2.1

Reset the machine to the factory. [Machine ➞ Reset to Factory]
Please refer to the link: 5-30 Reset to Factory
After the reset, check again if the MAC is shown.


Check if the MAC is shown:

  • Yes, and the connection works >> Problem Solved
  • Yes, but the connection still fails >> Step A3


Step A2.2

Reflash the SD card and check again if the MAC is shown.
Refer to the following links for the guide to SD card reflash.

Check if the MAC is shown:

  • Yes, it is shown, and the connection works >> Problem Solved
  • Yes, it is shown, but the connection still fails >> Step A3

 

Step A3

Try to connect to a WIFI and check if an IP address is shown.

 

Check if an IP address is shown:

  • Yes, an IP is shown >> Step A4 

 

Step A3.1

Set the connection settings to DHCP： Click the following on the machine panel,
『MACHINE ➞ Network ➞ Advanced Settings ➞ Wireless Network Advanced Settings ➞ TCP/IP Setting ➞Obtain IP Address from DHCP ➞ Apply』
After that, try to connect and see if the IP address is shown.


Check if an IP address is shown:

  • Yes, an IP is shown >> Step A4 

 

Step A3.2

Check if the using Wi-Fi frequency is 2.4GHz. If it's not 2.4GHz, the machine might not find the Wi-Fi name.
(Guide - getnexx.com)

 

  • After checking, proceed to Step A3.3 to confirm the Wi-Fi encryption type (WPA2).

 

Step A3.3

Confirm if the encryption type is "WPA2" or "No password needed." If not, you won’t be able to connect even if you see the Wi-Fi name and enter the password. You can set the encryption type on your computer and refer to your router's instructions for detailed settings. You can also search online.

 

After setting up, check if the machine can connect to the network：

  • Yes, and the software can send jobs correctly >> Problem Solved
  • Yes, but the software cannot connect to the machine >> Step A4

 

Step A3.4

Use the mobile's hotspot, and ensure the frequency supports 2.4GHz.
Note: The machine and your computer must be connected to this hotspot to communicate.

Check if the machine can connect to the phone's hotspot：

  • Yes, the computer can also connect, and the software works fine. >> The machine is fine; check the original Wi-Fi source settings.
  • Yes, the computer can connect, but the software cannot >> Step A4

 

Step A3.5

Change the hotspot's name and password.

If the hotspot name and password contain special characters or non-English or non-numeric characters, the machine connection may be problematic.
Change the Wi-Fi name to all English characters and the password to all numbers.

Recommended changes:
- Name: ABCDEFG
- Password: 12345678


Check both the machine and computer can connect to the phone's hotspot：

  • Yes, and the software works fine >> Problem Solved
  • Yes, but the software cannot connect to the machine >> Step A4
  • Both cannot connect to the phone's hotspot >> The hotspot and the original WIFI source are abnormal.

 

Step A4

Check if the IP on the machine starts with 169.254.

 

Valid IP formats:

  • 172.16.0.0 – 172.31.255.255 (iOS hotspot or enterprise router)
  • 10.0.0.0 – 10.255.255.255 (enterprise router)

 

Invalid IP formats:

  • 169.254.x.x.
    • May be caused by too many devices connected to your router or wrong DHCP settings. 
    • If you are not familiar with network settings, contact your ISP (Internet Service Provider) and ask how to enable DHCP for additional devices connected to the router.
    • If you are familiar with network settings, assign a valid IP to the MAC address shown on the Network page.

 

Check if the IP on the machine starts with 169.254:

  • Yes, it starts with 169.254 >> The router DHCP might not be enabled, or the hotspot is abnormal.
    (If the IP address starts with 169.254, it indicates the network interface card does not obtain the IP address automatically. Usually, this is because the router does not have DHCP service enabled or the DHCP service is malfunctioning. Please contact your internet service provider to turn the DHCP function on.

 

Step A5

Manually enter the IP in Beam Studio to make a connection between the software and the machine.
(If you are a Windows user, please select, right-click the Beam Studio app, and select "Run as administrator". Then press "yes" to run the application.)

 

Determine the status according to your connection method: 

  • Using the router, the software and machine connection are fine >> Problem Solved
  • Using the mobile's hotspot, the software and machine connection are fine >> The machine is fine, but there is an issue with the Wi-Fi source (Check if the WIFI name and password contain special characters).
  • Either using the router or mobile's hotspot, the software and machine cannot connect >> Step A5.1

 

Step A5.1

Use Beam Studio to test the connection quality.
Connection Quality > 70, Average Response Time < 100ms indicates a healthy connection.

 

Check the connection quality:
  • The connection quality is not healthy >> Check the WIFI signal strength and verify if your computer and machine are on the same network.

Back to top

 

B - Wireless: Built-in WIFI (HEXA Only)


Step B1

Go to [NETWORK] and check whether the MAC address is displayed according to the WIFI connection method you are using.

  • The red is the built-in WIFI connection, which supports 2.4GHz and 5GHz (HEXA only).
    The blue is the WIFI dongle, which only supports 2.4GHz.


Check if the MAC is shown:

 


Step B1.1

Reset the machine to the factory. [Machine ➞ Reset to Factory]
Please refer to the link: 5-30 Reset to Factory
After the reset, check again if the MAC is shown.

Check if the MAC is shown: 

  • Yes, and the connection works >> Problem Solved
  • Yes, but the connection still fails >> Step B2


Step B1.2

Reflash the SD card and check again if the MAC is shown.
Refer to the following links for the guide to SD card reflash.

Check if the MAC is shown: 

  • Yes, the MAC is shown, and the connection works >> Problem Solved
  • Yes, the MAC is shown, but the connection still fails >> Step B2

 

Step B2

Try to connect to a WIFI and check if an IP address is shown.


Check if an IP address is shown:

  • Yes, an IP is shown >> Step B3 

 

Step B2.1

Set the connection settings to DHCP： Click the following on the machine panel,
『MACHINE ➞ Network ➞ Advanced Settings ➞ Wireless Network Advanced Settings ➞ TCP/IP Setting ➞Obtain IP Address from DHCP ➞ Apply』
After that, try to connect and see if the IP address is shown.


Check if an IP address is shown: 

 

Step B2.2

Check if the using Wi-Fi frequency is 2.4GHz or 5GHz. (Only the HEXA built-in WIFI supports 5GHz)
(Guide - getnexx.com)

 

  • After checking, proceed to Step B2.3 to confirm the Wi-Fi encryption type (WPA2).

 

Step B2.3

Confirm if the encryption type is "WPA2" or "No password needed." If not, you won’t be able to connect even if you see the Wi-Fi name and enter the password. You can set the encryption type on your computer and refer to your router's instructions for detailed settings. You can also search online.

After setting up, check if the machine can connect to the network:

  • Yes, and the software can send jobs correctly >> Problem Solved
  • Yes, but the software cannot connect to the machine >> Step B3

 

Step B2.4

Use the mobile's hotspot, and ensure the frequency supports 2.4GHz.
Note: The machine and your computer must be connected to this hotspot to communicate.

Check if the machine can connect to the phone's hotspot: 

  • Yes, the computer can also connect, and the software works fine. >> The machine is fine; check the original Wi-Fi source settings.
  • Yes, the computer can connect, but the software cannot >> Step B3

 

Step B2.5

Change the hotspot's name and password.

If the hotspot name and password contain special characters or non-English or non-numeric characters, the machine connection may be problematic.
Change the Wi-Fi name to all English characters and the password to all numbers.

Recommended changes:
- Name: ABCDEFG
- Password: 12345678

Check both the machine and computer can connect to the phone's hotspot:

  • Yes, and the software works fine >> Problem Solved
  • Yes, but the software cannot connect to the machine >> Step B3
  • Both cannot connect to the phone's hotspot >> The hotspot and the original WIFI source are abnormal.

 

Step B3

Check if the IP on the machine starts with 169.254.

 

Valid IP formats:

  • 172.16.0.0 – 172.31.255.255 (iOS hotspot or enterprise router)
  • 10.0.0.0 – 10.255.255.255 (enterprise router)

 

Invalid IP formats:

  • 169.254.x.x.
    • May be caused by too many devices connected to your router or wrong DHCP settings. 
    • If you are not familiar with network settings, contact your ISP (Internet Service Provider) and ask how to enable DHCP for additional devices connected to the router.
    • If you are familiar with network settings, assign a valid IP to the MAC address shown on the Network page.

 

Check if the IP on the machine starts with 169.254:

  • Yes, it starts with 169.254 >> The router DHCP might not be enabled, or the hotspot is abnormal.
    (If the IP address starts with 169.254, it means that the network interface card did not obtain the IP address automatically. Usually, this is because the router does not have DHCP service enabled or the DHCP service is malfunctioning. Please contact your internet service provider to turn the DHCP function on.

 

Step B4

Manually enter the IP in Beam Studio to make a connection between the software and the machine.
(If you are a Windows user, please select, right-click the Beam Studio app, and select "Run as administrator". Then press "yes" to run the application.)

 

Determine the status according to your connection method:

  • Using the router, the software and machine connection are fine >> Problem Solved
  • Using the mobile's hotspot, the software and machine connection are fine >> The machine is fine, but there is an issue with the Wi-Fi source (Check if the WIFI name and password contain special characters).
  • Either using the router or mobile's hotspot, the software and machine cannot connect >> Step B4.1

 

Step B4.1

Use Beam Studio to test the connection quality.
Connection Quality > 70, Average Response Time < 100ms indicates a healthy connection.

 

Check the connection quality:
  • The connection quality is not healthy >> Check the WIFI signal strength and verify if your computer and machine are on the same network.

Back to top

 

C - Wired: Router (Computer <-> Router <-> Machine)


Step C1

Go to [NETWORK] and check whether the MAC address for the wired network is displayed.

 

Check if the MAC is shown:


Step C1.1

Reset the machine to the factory. [Machine ➞ Reset to Factory]
Please refer to the link: 5-30 Reset to Factory
After the reset, check again if the MAC is shown.

Check if the MAC is shown:

  • Yes, and the connection works >> Problem Solved
  • Yes, but the connection still fails >> Step C2


Step C1.2

Reflash the SD card and check again if the MAC is shown.
Refer to the following links for the guide to SD card reflash.

Check if the MAC is shown: 

  • Yes, but the connection still fails >> Step C2
  • Yes, but the connection still fails >> Step C2

 

Step C2

Make sure the cables for the machine and the computer are plugged into the LAN ports on the router.

Example:

 

 
Step C2.1

Go to [NETWORK] and check whether an Ethernet IP address is displayed.


Check if an IP address is shown: 

  • Yes, and the connection works >> Problem Solved
  • Yes, but the connection doesn't work >> Step C3


Step C2.2

Switch the LAN port for the machine's cable and check the IP again.


Check if an IP address is shown:

  • Yes, and the connection works >> Router's LAN port is abnormal >> Problem Solved
  • Yes, but the connection doesn't work >> Router's LAN port is abnormal >> Step C3

 

Step C2.3

Use another RJ45 cable to connect the router and the machine. Check the IP again.
(If another cable is not available, using the computer's cable is suggested.)


Check if an IP address is shown: 

  • Yes, and the connection works >> RJ45 cable is abnormal >> Problem Solved
  • Yes, but the connection doesn't work >> RJ45 cable is abnormal >> Step C3

 

Step C3

Check if the IP on the machine starts with 169.254.

 

Valid IP formats:

  • 172.16.0.0 – 172.31.255.255 (iOS hotspot or enterprise router)
  • 10.0.0.0 – 10.255.255.255 (enterprise router)

 

Invalid IP formats:

  • 169.254.x.x.
    • May be caused by too many devices connected to your router or wrong DHCP settings. 
    • If you are not familiar with network settings, contact your ISP (Internet Service Provider) and ask how to enable DHCP for additional devices connected to the router.
    • If you are familiar with network settings, assign a valid IP to the MAC address shown on the Network page.

 

Check if the IP on the machine starts with 169.254:

  • Yes, it starts with 169.254 >> The router DHCP might not be enabled, or the hotspot is abnormal.
    (If the IP address starts with 169.254, it means that the network interface card did not obtain the IP address automatically. Usually, this is because the router does not have DHCP service enabled or the DHCP service is malfunctioning. Please contact your internet service provider to turn the DHCP function on.

 

Step C4

Manually enter the IP in Beam Studio to make a connection between the software and the machine.
(If you are a Windows user, please select, right-click the Beam Studio app, and select "Run as administrator". Then press "yes" to run the application.)

 

Determine the status according to your connection method:

  • The software and machine connection are fine >> Problem Solved
  • The software and machine connection are not fine >> Step C4.1


Step C4.1

Use Beam Studio to test the connection quality.
Connection Quality > 70, Average Response Time < 100ms indicates a healthy connection.

 

Check the connection quality:
  • The connection quality is not healthy >> Check the WIFI signal strength and verify if your computer and machine are on the same network.

Back to top

 

 

D - Wired: Direct Connection with Network Cable
(Computer <-> Machine)

Step D1

Please refer to the guide below.

If you still cannot connect after following the instructions, please use other methods temporarily. Kindly record any error message or symptoms then contact FLUX Support.

Back to top

 

E - USB cable (HEXA Only - Computer <-> Machine)

Step E1

Please refer to the guide below. Please note that this method is only for HEXA.
2-5 Connection Settings [3 USB Connection]

 

Check if it works:

  • Yes >> Problem Solved

 

Step E2

Use another USB-A to USB-B cable.
(Skip this step and contact FLUX support if another cable is not available)


Check if it works:

  • Yes >> Problem Solved

Back to top


#END

Related articles

Comments

0 comments

Please sign in to leave a comment.