I found a lot of posts about this issue, but none is like mine.
I have a website that subscribes to IG real-time updates. Since some time ago trying to subscribe to new notifications returns the above error. Seems like IG can't reach the callback_url.
Interesting findings while troubleshooting:
- I tried to manually (directly) access the callback_url and it works flawlessly.
- When I run the site on my local machine and make sure the callback_url is to my server + the verify_token is a valid one then it all works as it should! IG reaches the callback_url.
- I used the apigee console to make the subscription request and there it sometimes works.. Meaning - I craft the request to IG API and click Send. If it fails then I click again (I don't change parameters) and then it works..
- Web server logs are in line with the results I get (when it complains it can't reach then there's no log of a request).
Does anyone have any tip or suggestion how to fix this?
Thanks!