I was helped by Jay S of Sandisk with a solution that I will copy and paste. It worked for me. Happy happy, joy joy!
- Close the SanDisk Wireless Drive App and clear it from recent apps list.
- Go to Wi-Fi settings on your Android device.
- Long press the name of your SanDisk Wireless Drive and select “Forget network”. Launch the SanDisk Wireless Drive App and connect to the Wireless Drive as usual.