Canon EOS REBEL T7I Wi-Fi (Wireless Communication) Function Instruction Manual page 146

Responding to Error Messages
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.114).
91: Other error
A problem other than error code number 11 to 69 occurred.

Turn off and on the camera's power switch.

101: Could not establish connection
Has the procedure to establish a Wi-Fi connection between

cameras been performed on the other camera as well?
Perform the procedure to establish a Wi-Fi connection between

cameras on the other camera as well.
Even with cameras whose connection settings have been

registered with each other, perform the reconnection procedure on
both cameras when reconnecting them after terminating the first
Wi-Fi connection.
Is Wi-Fi connection being attempted by multiple cameras?

 The camera can be connected to only one camera at a time via
Wi-Fi. Confirm that no other camera is attempting to establish a
connection nearby and retry connection.
146