HTTP 502 Error code received on some feeds after migration
Sunday, January 25, 2009 | 2:32 PM
Labels: Workaround
If you see a “502” HTTP Error when viewing your feed in a browser or feed reader, please note that this is a very general error code indicating that we can temporarily not access the content of your source feed. In nearly all cases, the error will disappear as soon as the feed has new posts added since you moved your account. This error usually occurs immediately after moving your feeds to a Google Account.
However, if the error persists for more than 24 hours, and you have added content to your feed, this is usually indicative of a problem with your ISP or hosting provider not allowing us to access your feed as often as we need in order to ensure proper updating of your feed. We see these errors and are filing support tickets with the responsible providers.
If you manage your own webserver, please whitelist the following IP addresses to have unrestricted access to your feed:
209.85.132.136
74.125.44.136
74.125.44.136
You may wish to report this IP address block to your service provider as well.