Publicize Error code -10520

I’m facing the same issue with the same error code here

Your site doesn’t seem to be properly connected to WordPress.com at the moment. Could you try the following:

1) Go the Jetpack menu in your dashboard
2) Click on “My Jetpack” at the top of the page.
3) Click on “Disconnect Site from WordPress.com” if your site is currently connected to WordPress.com.
4) Confirm the disconnection.
5) Click on the Connect button to connect your site to WordPress.com again.

If that doesn’t help, can you please use Jetpack’s Debugger module to send us some more information about your site?

1) Go to the Jetpack page in your dashboard.
2) Click on the Debug link appearing at the bottom of the page.
3) Click the link that says “click here to contact Jetpack support.”
4) Fill in the description box and your name and email address.
5) Click the “Contact Support” button.

Thanks!

Ok the problem is still there but I found a way to by pass it.

one I reactivated jetpack I conected to wordpress.com.
from there I clicked sharing and I could successfully connected my site ??

thanks for your time though :).

I have Same Problem but not resolved
The jetpack Debug Report
SELF:
Array
(
[headers] => Requests_Utility_CaseInsensitiveDictionary Object
(
[data:protected] => Array
(
[server] => nginx
[date] => Fri, 16 Sep 2016 09:00:58 GMT
[content-type] => text/plain;charset=utf-8
[expires] => Wed, 11 Jan 1984 05:00:00 GMT
[cache-control] => no-cache, must-revalidate, max-age=60
[x-hacker] => Jetpack Test
[x-ac] => 3.fra _dfw
[strict-transport-security] => max-age=15552000
)

)

[body] => {“error”:”Can not resolve your domain \”A record\””,”error_description”:”We were unable to resolve the A record for your domain. It is likely that you have recently registered your domain name. It takes several hours for new or transferred domain names to start working, so please come check back later. If you’re still having the same error after 48 hours, please contact your web hosting provider.”}
[response] => Array
(
[code] => 400
[message] => Bad Request
)

[cookies] => Array
(
)

[filename] =>
[http_response] => WP_HTTP_Requests_Response Object
(
[response:protected] => Requests_Response Object
(
[body] => {"error":"Can not resolve your domain \"A record\"","error_description":"We were unable to resolve the A record for your domain. It is likely that you have recently registered your domain name. It takes several hours for new or transferred domain names to start working, so please come check back later. If you're still having the same error after 48 hours, please contact your web hosting provider."}
[raw] => HTTP/1.1 400 Bad Request
Server: nginx
Date: Fri, 16 Sep 2016 09:00:58 GMT
Content-Type: text/plain;charset=utf-8
Transfer-Encoding: chunked
Connection: close
Expires: Wed, 11 Jan 1984 05:00:00 GMT
Cache-Control: no-cache, must-revalidate, max-age=60
X-hacker: Jetpack Test
X-ac: 3.fra _dfw
Strict-Transport-Security: max-age=15552000

191
{"error":"Can not resolve your domain \"A record\"","error_description":"We were unable to resolve the A record for your domain. It is likely that you have recently registered your domain name. It takes several hours for new or transferred domain names to start working, so please come check back later. If you're still having the same error after 48 hours, please contact your web hosting provider."}
0

[headers] => Requests_Response_Headers Object
(
[data:protected] => Array
(
[server] => Array
(
[0] => nginx
)

[date] => Array
(
[0] => Fri, 16 Sep 2016 09:00:58 GMT
)

[content-type] => Array
(
[0] => text/plain;charset=utf-8
)

[expires] => Array
(
[0] => Wed, 11 Jan 1984 05:00:00 GMT
)

[cache-control] => Array
(
[0] => no-cache, must-revalidate, max-age=60
)

[x-hacker] => Array
(
[0] => Jetpack Test
)

[x-ac] => Array
(
[0] => 3.fra _dfw
)

[strict-transport-security] => Array
(
[0] => max-age=15552000
)

)

)

[status_code] => 400
[protocol_version] => 1.1
[success] =>
[redirects] => 0
//The actual URL is removed with "blog url"
[url] => https://jetpack.wordpress.com/jetpack.testsite/1/?url=https://blog url/xmlrpc.php
[history] => Array
(
)

[cookies] => Requests_Cookie_Jar Object
(
[cookies:protected] => Array
(
)

)

)

[filename:protected] =>
[data] =>
[headers] =>
[status] =>
)

)
When i directly access the blog url/xml-rpc.php then i get
XML-RPC server accepts POST requests only.

but when i access it like
https://jetpack.wordpress.com/jetpack.testsite/1/?url=https://blog url/xmlrpc.php
i get
{"error":"Can not resolve your domain \"A record\"","error_description":"We were unable to resolve the A record for your domain. It is likely that you have recently registered your domain name. It takes several hours for new or transferred domain names to start working, so please come check back later. If you're still having the same error after 48 hours, please contact your web hosting provider."}

@debashish1216 It seems that your domain’s A record is not configured properly. I’d recommend checking your site’s DNS and A records and make sure everything is set up properly. Your hosting provider should also be able to help you with that.

If that doesn’t help, could you follow the instructions I posted above to contact us and send us more details about your site?

Thanks!