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When I try to log into my Instagram account via Facebook (on a laptop) I keep getting "sorry an unknown error occurred, please try again". I've reset passwords, tried different browsers, cleared caches, etc., and still no connection. However Instagram does connect to my FB account from my Android phone and has found all my friends to follow, etc.

Does anyone know how to fix this problem?

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  • If you open the developer tools (F12), and then try to connect - do you see any errors in the console?
    – arieljannai
    Commented Mar 7, 2018 at 9:58
  • Do you have any ad blocker or privacy guard active on your browser?
    – arieljannai
    Commented Mar 7, 2018 at 9:59
  • Thanks arieljannai. Following your prompt I disabled my ad-blocker and made my profile public. It has now allowed a log-in.
    – Karl Bartlett
    Commented Mar 9, 2018 at 11:02
  • Great, glad it helped. I added this solution as an answer.
    – arieljannai
    Commented Mar 9, 2018 at 15:55
  • Hi Karl, Welcome to WebApps. Please note that the preferred way of saying 'thanks' around here is by up-voting good questions and helpful answers (once you have enough reputation to do so), and by accepting the most helpful answer to any question you ask (which also gives you a small boost to your reputation). Please see the About page and also How do I ask questions here?
    – arieljannai
    Commented Apr 5, 2018 at 15:36

2 Answers 2

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A lot of times ad blockers and privacy guards block connections from one domain to another.

It might lead to failures in connecting to one service using another.

Try check what the ad blocker / privacy guard has blocked, and also check the console logs. If you see that something related to facebook login/connection was blocked - it's probably the reason.

Written as a helpful answer for others as well, after the issue was resolved by this, in the question comments.

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  • I get an Internal Server Error (HTTP 500) from Facebook: i.sstatic.net/cN0Sd.png
    – ADTC
    Commented Aug 24, 2019 at 8:02
  • Even though I've tried all the solutions mentioned here, didn't help me. Post log-in with FB account, instagram simply takes me to the sign up page. There is no console error as well but in network tab I could see 302 from FB network calls, how to fix this
    – vikramvi
    Commented May 12, 2021 at 6:33
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This only works (currently) with Instagram Business profiles. Creator accounts don't give any errors sensible errors, just "Sorry, an unknown error occurred. Please try again."

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