EProcessingNetwork error 28 Operation timed out after 15000 milliseconds with 0 bytes

Zen Cart 1.3.8a

Most credit cards order are working and showing up in the admin but a couple do not show up. I have an error report and with post it below. When the error happens the card is charge but doesn't have the new order posted. I do have the recover cart sales add on install and the order will show up there.

I think it is our processing company server is loaded when the error happens.

Thanks,
Jon

Comm results: 28 Operation timed out after 15000 milliseconds with 0 bytes received

Response Code: .
Response Text:

"Customer and Order info"

Results Received back from Authorizenet: Array
(
[0] => Response from gateway
[1] =>
[Expected-MD5-Hash] => D11BE118BD50697CA1B81498A1061B05
[HashMatchStatus] => PASS
)

CURL communication info: Array
(
[url] => https://www.eProcessingNetwork.Com/cgi-bin/an/order.pl
[content_type] =>
[http_code] => 100
[header_size] => 25
[request_size] => 178
[filetime] => -1
[ssl_verify_result] => 0
[redirect_count] => 0
[total_time] => 15.329308
[namelookup_time] => 0.040903
[connect_time] => 0.08957
[pretransfer_time] => 0.255871
[size_upload] => 1173
[size_download] => 0
[speed_download] => 0
[speed_upload] => 76
[download_content_length] => -1
[upload_content_length] => 1173
[starttransfer_time] => 0.309657
[redirect_time] => 0
)