APNS Connection Timed out

Question

Created Sep ’24

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This error has been continuously occurring for about 9 hours. We have not replaced the certificate, modified the server code, or changed the firewall policy. Some requests succeed, but many are timing out, with several timeouts occurring every minute. We are unable to find the cause. Please help.

APNS Exception io netty channel ConnecttimeException: Connection timed out APNSOutboundHandler

api.push.apple.com/17.188.169.28:443 api.push.apple.com/(other ip):443 api.push.apple.com/(other ip):443 api.push.apple.com/(other ip):443 api.push.apple.com/(other ip):443 ...

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Answer 1

Engineer OP

Apple

Sep ’24

There was a DNS server issue that caused intermittent failures. The issue is now resolved.

If the cause of your timeouts was due to the same, that would explain it. If you are still seeing these issues, then we would need to look elsewhere.

First thing to check is that your network resources are not the cause here. Most of the time, timeout issues can be explained by network conditions between your push server and APNs.

If the problem is ongoing, and you are not able to establish a cause, we can take a look to see if the requests are reaching us.

We have a pinned post on how to provide diagnostic information so we can check what might be the problem. Please read through the post If you need assistance debugging your push notification issues

and supply the requested detailed information for a notification request that was not received and we can take a look.

Argun Tekant /  DTS Engineer / Core Technologies

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