Camera goes to sleep or disconnects during tethering: fixes
By the CloudTether team · Updated
Short answer: the camera's power saving is the usual cause — when it sleeps, the USB or Wi-Fi link drops with it. Lengthen or disable auto power off (the standby timer on Nikon), keep the battery charged, anchor the cable so a tug can't unplug it, and on iPhone keep CloudTether on screen with Pocket mode rather than locking the phone.
Likely causes
- Auto power off, or the standby timer on Nikon, putting the camera to sleep between sets.
- A low camera battery, or an eco mode that shortens power-saving times.
- A cable pulled half out by a tug, or a worn plug.
- The iPhone locked or CloudTether sent to the background.
- On Android, battery saver pausing the app, or a Samsung setting that blocks USB while locked.
- Over Wi-Fi, distance or interference between camera and phone.
How to fix it, step by step
Lengthen the camera's power-off time
Make the camera's sleep timer as long as the shoot needs, or switch it off while tethered. The names differ by brand and body: Auto power off on Canon (under the power-saving settings on many EOS bodies), the standby timer on Nikon, Power Save Start Time on Sony, and AUTO POWER OFF in the power management settings on Fujifilm.
Turn off eco modes for the shoot
Eco and power-saving modes shorten the time before the camera dims or sleeps. Turn them off while you tether, and accept a little more battery use.
Keep the camera battery healthy
A nearly flat battery can make a camera drop its connections before it shuts down. Start with a full battery and swap early; a battery grip helps on long days.
Anchor the cable
A sideways tug can pull a plug half out or damage the port. Add a cable clamp on the camera, cage or tripod, use a right-angle plug next to a grip or flash, and keep the cable as short as the setup allows.
Keep the phone awake the right way
On iPhone, keep CloudTether open; Pocket mode darkens the screen while the tether keeps running — tap Pocket mode on Home and double-tap to wake. Don't lock the phone. On Android, CloudTether runs as a foreground service with the screen locked, but turn battery saver off, and on some Samsung phones turn off the security setting that blocks USB while locked.
Over Wi-Fi, stay close
Keep the phone on the same side of your body as the camera. Walls and crowds between them weaken the signal, and a sleeping camera drops off the network.
Wake and reconnect
Half-press the shutter to wake the camera. If CloudTether doesn't show it connected again, unplug and replug the cable, or re-approve the Wi-Fi connection on the camera if it asks. Shots already on the phone keep uploading, and the card keeps its own copy.
Fujifilm: keep the cable for data
On newer Fujifilm bodies, USB POWER SUPPLY/COMM SETTING decides whether the camera takes power over the cable. POWER SUPPLY OFF/COMM ON keeps the cable for data, so a tethered camera doesn't run down the phone's battery.
Power for a long day
Tethering uses the phone's radio and screen. A USB-PD power bank, or the charging port on Apple's Lightning to USB 3 Camera Adapter, covers a full wedding day. On iPhone each connected camera gets a Live Activity on the Lock Screen with its shot, sending and delivered counts, so you can see at a glance that the tether is still up.
FAQ
Why does my camera disconnect when tethered?
Usually the camera's auto power off or standby timer puts it to sleep. Lengthen or disable it, and keep the cable anchored.
What is the standby timer on a Nikon?
Nikon's name for its power-saving timer. Make it longer so the camera stays awake while tethered.
Can I lock my iPhone while tethering?
Keep CloudTether open instead and use Pocket mode, which darkens the screen while the tether keeps running.
Does CloudTether keep tethering with an Android phone locked?
Yes, as a foreground service. Turn off battery saver, and on some Samsung phones the setting that blocks USB while locked.
Will I lose shots if the camera disconnects?
Shots already on the phone keep uploading, and the card keeps its own copy. Wake the camera and reconnect to carry on.
Tether your camera to your phone with CloudTether
Canon, Nikon, Sony and Fujifilm over USB or Wi-Fi, on iPhone, iPad and Android. Every full-resolution shot is copied off the camera and delivered to Dropbox, Google Drive, a client gallery or FTP while you keep shooting.