Responding to Error Messages
(NOTE: Referenced page numbers are for the EOS R Users Manual.)

When an error occurs, display the details of the error by following one of the procedures below. Then, eliminate the cause of the error by referring to the examples shown in this article.

• On the [View info] screen, press (p.516).
• Select [Error details] on the [Wi-Fi on] screen.

11: Connection target not found

• In the case of  , is Camera Connect running?
  • Establish a connection using Camera Connect. (p.442)).
• In the case of   , is the power of the printer on?
  • ​Turn on the printer.
• In the case of  , is the EOS software running?
  • ​Start the EOS software and reestablish the connection (p.463).
• Are the camera and the access point set to use the same password for authentication?
  • ​This error occurs if the passwords do not match when the authentication method for encryption is set to [Open system]. The setting is case-sensitive, so check upper- and lower-case characters. Make sure that the correct password for authentication is set on the camera (p.506).

12: Connection target not found

• Is the power of the target device and access point on?
  • ​Turn on the target device and access point, then wait a while. If a connection still cannot be established, perform the procedures to establish the connection again.

21: No address assigned by DHCP server
What to check on the camera

• On the camera, IP address is set to [Auto setting]. Is this the correct setting?
  • ​If no DHCP server is used, specify the settings after setting the IP address to [Manual setting] on the camera (p.535).

What to check on the DHCP server

• Is the power of the DHCP server on?
  • ​Turn on the DHCP server.
• Are there enough addresses for assignment by the DHCP server?
  • ​Increase the number of addresses assigned by the DHCP server.
  • Remove devices assigned addresses by the DHCP server from the network to reduce the number of addresses in use.
• Is the DHCP server working correctly?
  • ​Check the DHCP server settings to make sure it is working correctly as a DHCP server.
  • If applicable, ask your network administrator to ensure the DHCP server is available.

22: No response from DNS server
What to check on the camera

• On the camera, does the DNS server's IP address setting match the server's actual address?
  • ​Set the IP address to [Manual setting]. Then, on the camera, set the IP address that matches the address of the DNS server used (p.531, 535).

What to check on the DNS server

• Is the power of the DNS server on?
  • ​Turn on the DNS server.
• Are the DNS server settings for the IP addresses and the corresponding names correct?
  • ​On the DNS server, make sure IP addresses and the corresponding names are entered correctly.
• Is the DNS server working correctly?
  • ​Check the DNS server settings to make sure it is working correctly as a DNS server.
  • Is applicable, ask your network administrator to ensure the DNS server is available.

What to check on the network as a whole

• Does the network that you are trying to connect to via Wi-Fi include a router or similar device that serves as a gateway?
  • ​If applicable, ask your network administrator for the network gateway address and enter it on the camera (p.531, 535).
  • Make sure that the gateway address setting is correctly entered on all network devices including the camera.

23: Device with same IP address exists on selected network
What to check on the camera

• Do the camera and another device connected via Wi-Fi to the same network have the same IP address?
  • ​Change the camera's IP address to avoid using the same address as another device on the network. Otherwise, change the IP address of the device that has a duplicate address.
  • If the camera's IP address is set to [Manual setting] in network environments using a DHCP server, change the setting to [Auto setting] (p.507).

NOTE: Responding to Error Messages 21-23 Also check the following points when responding to errors numbered 21-23. Are the camera and the access point set to use the same password for authentication? This error occurs if the passwords do not match when the authentication method for encryption is set to [Open system]. The setting is case-sensitive, so check upper- and lower-case characters. Make sure that the correct password for authentication is set on the camera (p.506).

61: Selected SSID wireless LAN network not found

• Are any obstacles blocking the line of sight between the camera and the antenna of the access point?
  • ​Move the antenna of the access point to a position clearly visible from the point of view of the camera (p.528).

What to check on the camera

• Does the SSID set on the camera match that of the access point?
  • ​Check the SSID at the access point, then set the same SSID on the camera (p.505).

What to check at the access point

• Is the access point turned on?
  • ​Turn on the power of the access point.
• If filtering by MAC address is active, is the MAC address of the camera in use registered at the access point?
  • ​Register the MAC address of the camera used to the access point. The MAC address can be checked on the [View info] screen (p.516).

63: Wireless LAN authentication failed

• Are the camera and the access point set to use the same authentication method?
  • ​The camera supports the following authentication methods: [Open system], [Shared key], and [WPA/WPA2-PSK] (p.496).
• Are the camera and the access point set to use the same password for authentication?
  • ​The setting is case-sensitive, so check upper- and lower-case characters. Make sure that the correct password for authentication is set on the camera (p.506).
• If filtering by MAC address is active, is the MAC address of the camera in use registered at the access point?
  • ​​Register the MAC address of the camera used to the access point. The MAC address can be checked on the [View info] screen (p.516).

64: Cannot connect to wireless LAN terminal

• Are the camera and the access point set to use the same encryption method?
  • ​The camera supports the following encryption methods: WEP, TKIP, and AES (p.496).
• If filtering by MAC address is active, is the MAC address of the camera in use registered at the access point?
  • ​Register the MAC address of the camera used to the access point. The MAC address can be checked on the [View info] screen (p.516).

65: Wireless LAN connection lost

• Are any obstacles blocking the line of sight between the camera and the antenna of the access point?
  • ​Move the antenna of the access point to a position clearly visible from the point of view of the camera (p.528).
• The Wi-Fi connection was lost for some reason, and the connection cannot be restored.
  • ​The following are possible reasons: excessive access to the access point from another device, a microwave oven or similar appliance in use nearby (interfering with IEEE 802.11b/g/n (2.4 GHz band), or influence of rain or high humidity (p.528).

66: Incorrect wireless LAN password

• Are the camera and the access point set to use the same password for authentication?
  • T​he setting is case-sensitive, so check upper- and lower-case characters. Make sure that the correct password for authentication is set on the camera (p.506).​

67: Incorrect wireless LAN encryption method

• Are the camera and the access point set to use the same encryption method?
  • ​The camera supports the following encryption methods: WEP, TKIP, and AES (p.496).
• If filtering by MAC address is active, is the MAC address of the camera in use registered at the access point?
  • ​Register the MAC address of the camera used to the access point. The MAC address can be checked on the [View info] screen (p.516).

68: Cannot connect to wireless LAN terminal. Retry from the beginning.

• Did you hold down the access point's WPS (Wi-Fi Protected Setup) button for the specified period of time?
  • ​Hold down the WPS button for the period of time specified in the access point's instruction manual.
• Are you trying to establish a connection near the access point?
  • ​Try establishing the connection when both devices are within reach of each other.

69: Multiple wireless LAN terminals have been found. Cannot connect. Retry from the beginning.

• Connection is in progress by other access points in Pushbutton Connection mode (PBC mode) of WPS (Wi-Fi Protected Setup).
  • ​Wait a while before trying to establish the connection, or try to establish a connection in PIN code connection mode (PIN mode) (p.501).

91: Other error

• A problem other than error code number 11 to 69 occurred.
  • ​Turn the camera's power switch off and on.

121: Not enough free space on server

• The target Web server does not have enough free space.
  • ​Delete unnecessary images on the Web server, check the free space on the Web server, then try sending the data again.

125: Check the network settings

• Is the network connected?
  • ​Check the connection status of the network.

126: Could not connect to server

• CANON IMAGE GATEWAY is under maintenance or load is concentrated temporarily.
  • ​Try connecting to the Web service again later.

127: An error has occurred.

• A problem other than error code number 121 to 126 occurred while the camera is connected to the Web service.
  • ​Try again to establish the Wi-Fi connection to the Web service.

141: Printer is busy. Try connecting again.

• Is the printer performing a printing process?
  • ​Try again to establish the Wi-Fi connection to the printer after the printing process is finished.
• Is another camera connected to the printer via Wi-Fi?
  • ​Try again to establish the Wi-Fi connection to the printer after the Wi-Fi connection to the other camera has been terminated.

142: Could not acquire printer information. Reconnect to try again.

• Is the power of the printer on?
  • ​Try again to establish the Wi-Fi connection after turning on the printer.

151: Transmission cancelled

• Automatic image transfer to the computer was somehow interrupted.
  • ​To resume automatic image transfer, set the camera's power switch to , then set it to .

152: Card's write protect switch is set to lock

• Is the card's write-protect switch set to the locked position?
  • ​Slide the card's write-protect switch to the writing position.