12-19-2017 16:12 - edited 02-14-2018 13:04
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post


12-19-2017 16:12 - edited 02-14-2018 13:04
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
- Who Voted for this post?
Update: 12/22/2017: We released a new version of the app today which should resolve this issue. Please update your app. Thanks for your reports and patience.
We received reports that an increased amount of users see Error 403 when attempting to set up or sync their device. If basic troubleshoots do not work (force quit app, restart tracker, restart device) users have reported uninstalling and reinstalling the app helps resolve the issue.
Thanks very much for your reports as we work on a resolution.
Actively managing your weight? Find accountability buddies on the Manage Weight board
Answered! Go to the Best Answer.
12-19-2017 16:10
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-19-2017 16:10
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
This was a really quick solution in transitioning to new iPhone 8+...!

12-19-2017 20:11
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-19-2017 20:11
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
I switched phones and got the same error. I had transferred my apps from old phone to new using iCloud backup. Could not get it to sync properly. Uninstalling the app and reinstalling it worked for me. Just go through set up procedures again and your set.

12-20-2017 03:55
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-20-2017 03:55
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
Actually literally just updated and it still will not sync to either my flex 2 or charge 2 on the iOS app! No problem with my kindle fire though so clearly after 2 different patches in 2 days someone needs to get back to work!! Getting very frustrated! Since September no notifications either!! WTF?! Doesn’t make me want to upgrade to the Iconic! I have also tried every single suggestion too so not good at all!

12-20-2017 06:47
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-20-2017 06:47
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
- Who Voted for this post?
I tried everything, and then uninstalled and reinstalled the app, and it now works with my iPhone 8 Plus!!
12-20-2017 06:49
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-20-2017 06:49
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
- Who Voted for this post?
Uninstall and reinstall the app!! I just did this, and it resynced to my new iPhone 8 Plus. Good luck, and I hope this works for you!!
12-20-2017 06:51
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-20-2017 06:51
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
- Who Voted for this post?
Try to uninstall (delete) the app, and then reinstall it. I just did this and it works with my new iPhone 8 Plus! Good luck and I hope this helps. This was SO frustrating!!
12-20-2017 13:19
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-20-2017 13:19
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
- Who Voted for this post?
To sync my Blaze with my new iPhone 8, i needed to delete my fitbit app, re-download it, then all was well.
12-20-2017 13:27
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-20-2017 13:27
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
- Who Voted for this post?
I just got the iphoneX and uninstalling and re-installing the fitbit app worked for me.
12-20-2017 16:16
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-20-2017 16:16
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
- Who Voted for this post?
My alta HR and iphone are not syncing. I've had no problems with it for months but for some reason they now won't sync. I tried turning blue tooth on and off and restarting the Alta HR. But I kept getting a com.fitbit.http error 403. So I deleted the device from my iphone and tried setting it up again. I put in the 4 digit number that displays on my Alta but I still get the com.fitbit.http error 403
12-21-2017 08:54
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-21-2017 08:54
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
Fitbit Blaze had error message with new Iphone 8 this week. Uninstalling & re-installing the App worked.

12-21-2017 10:23
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-21-2017 10:23
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
Same thing happened when I got my new phone, so I just deleted the app and reinstalled the app and it works now.

12-21-2017 18:42
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-21-2017 18:42
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
- Who Voted for this post?
Deleting the app and adding it back WORKED! Thanks so much!
12-22-2017 02:53
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-22-2017 02:53
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
- Who Voted for this post?
I WOULD LIKE A REFUND !!!
ENTERING THE FOUR DIGITS AND THEN RECEVING 403 ERROR MESSAGE WILL NOT DO IT
12-22-2017 09:11
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post


12-22-2017 09:11
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
- Who Voted for this post?
Hi everyone, we released a new version of the app today which should resolve this issue. Please update your app. Thanks for your reports and patience!
Actively managing your weight? Find accountability buddies on the Manage Weight board
12-25-2017 17:59
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-25-2017 17:59
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
Have uninstalled twice and now getting the networkbitkit error when trying to log in!! This has been going on for 2days now Ive had wifi on and off, restarted phone, blue tooth on and off and nothing. How can I connect my alta to my phone??

12-26-2017 11:37
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-26-2017 11:37
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
This is very frustrating!! My Flex 2 did sync with my iPhone 8, but only as much as allowing me to view and edit the dashboard. I’m not getting text or phone notifications at all now, so I don’t know what is going on!!

12-26-2017 11:42
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-26-2017 11:42
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
Now my Fitbit Flex 2 won’t receive text or phone call notifications from my iPhone 8 Plus. I can at least open the app and view the dashboard, but I don’t know why the notifications won’t work.

12-26-2017 12:43
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-26-2017 12:43
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
Done that (updated app) but I still get the 403 error. Got a new iPhone and can’t get the two devices to sync. Frustrating

12-26-2017 13:18
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-26-2017 13:18
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
- Who Voted for this post?
Ok - deleting app and reloading the app and signing in again allowed to me to setup my Charge 2 on a new iPhone X with now errors. I’m a happy camper again. 😀
12-26-2017 19:03
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post

12-26-2017 19:03
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Report this post
I ended up deleting the app and reinstalling it, and it worked fine after that.

