You finish editing a Reel, tap Share, and Instagram hangs on “Sharing…” or shows “Couldn’t post. Try again.” It is one of the most common Instagram frustrations, and it usually comes down to a weak connection, a full cache, an outdated app, or a file that doesn’t meet Instagram’s requirements. This guide walks through practical troubleshooting steps for Reels, Stories and feed posts that won’t upload on both Android and iPhone.
What You’ll Need
- The latest version of Instagram from Google Play or the App Store
- A stable Wi-Fi or mobile data connection
- Some free storage on your phone (a few hundred MB is a good minimum)
- Your Instagram login details, in case you need to log back in
Step 1: Check Your Connection First
Uploads need a steady connection more than a fast one. Open a browser and load a page, or play a short video, to confirm you are really online. If you are on Wi-Fi, try switching to mobile data (or the reverse) and retry the upload. Restarting your router can also clear temporary Wi-Fi issues. Turn off any VPN while posting, since VPNs can slow or interrupt uploads.
Step 2: Check Whether Instagram Is Having Problems
Sometimes the problem is not on your phone. Search for “Instagram down” on a status-tracking site or look at recent posts from Instagram’s official support accounts. If there is an outage, the best fix is to wait and try again later.
Step 3: Force Close and Reopen the App
- Android: Open the recent apps screen, swipe Instagram away, then open it again.
- iPhone: Swipe up from the bottom (or double-press the Home button), then swipe Instagram off the screen and relaunch it.
Your draft is usually saved, so you can retry from where you left off.
Step 4: Update Instagram and Your Phone
Older app versions can break uploads when Instagram changes its servers. Open Google Play or the App Store, search for Instagram, and tap Update if it is offered. It is also worth installing any pending system update in your phone’s Settings.
Step 5: Clear the Cache (Android) or Reinstall (iPhone)
On Android, go to Settings > Apps > Instagram > Storage and choose Clear cache. Do not choose Clear data unless you are prepared to log in again. The exact menu names vary by manufacturer.
iPhone does not offer a cache-clearing button for apps. If problems persist, you can delete and reinstall Instagram. Make sure you know your password first, because you will need to sign in again.
Step 6: Check the Video or Photo Itself
A file that is very large, very long, or in an unusual format can fail to upload. A few general tips:
- Use a common format such as MP4 or MOV for videos and JPG or PNG for photos.
- Reels and Stories have length limits that Instagram adjusts from time to time, so check the in-app guidance if your clip is long.
- If you edited the clip in another app, try exporting it again at a slightly lower quality or resolution.
- Make sure the file is stored on your phone and not only in cloud storage.
Step 7: Review Permissions and Data Saver
Instagram needs access to your photos and videos. On Android, check Settings > Apps > Instagram > Permissions. On iPhone, open Settings > Instagram > Photos and allow access. Also check that Data Saver or Low Data Mode is not limiting Instagram’s activity, and review the data usage and upload-quality options inside Instagram’s own settings, which can also affect uploads.
Common Problems and Fixes
- Stuck on “Sharing” forever: Cancel the post, force close the app, and try again on a different network.
- “Couldn’t post” on a Reel only: Re-export the video, trim it slightly, or remove heavy effects and try again.
- Story uploads but looks blurry: Record or export in a standard portrait size and avoid re-uploading screenshots of other videos.
- Error only on one account: Log out and back in, or check Account Status in Settings to see whether any content restrictions apply.
- Upload fails after a copyright notice: Music or clips may be restricted. Replace the audio with something from Instagram’s own library.
Data Safety and Account Precautions
When troubleshooting, only download Instagram from Google Play or the App Store. Avoid third-party “upload fixer” apps or websites that ask for your password, since they can put your account at risk. Keep two-factor authentication turned on, and save your original photos and videos before reinstalling the app or clearing data, so nothing is lost if a draft disappears.
FAQ
Why does my Reel upload on Wi-Fi but not mobile data?
Your mobile plan or signal may be limiting upload speeds, or Data Saver may be on. Check those settings or use Wi-Fi for large files.
Will I lose my draft if I reinstall Instagram?
Drafts are stored with the app and may be lost, so save the original media to your gallery first.
Does clearing the cache delete my posts?
No. Clearing the cache only removes temporary files. Your posts live on Instagram’s servers.
How long should I wait before trying again?
If the problem seems to be on Instagram’s side, waiting an hour or so and retrying often works.
Steps and menu labels may change as apps update. Last updated: October 2026.