Did an upgrade from 1.5.1 to 1.5.3 yesterday and received this during the upgrade:

CURL NON-SSL Capability = CURL problems detected: 28 => Connection timed out after 11000 milliseconds Click here for more info

CURL SSL Capability = CURL requires SSL support. Please notify webmaster or hosting company. 28 => Connection timed out after 11000 milliseconds
However, cURL is fully enabled on the server, orders via PPEC are processed without problems.

Site has it's own GeoTrust SSL cert.

Server/Version Info tells me this:

cURL support enabled
cURL Information 7.36.0
Age 3
Features
AsynchDNS Yes
Debug No
GSS-Negotiate Yes
IDN Yes
IPv6 Yes
Largefile Yes
NTLM Yes
SPNEGO No
SSL Yes
SSPI No
krb4 No
libz Yes
CharConv No
Protocols dict, file, ftp, ftps, gopher, http, https, imap, imaps, ldap, ldaps, pop3, pop3s, rtsp, scp, sftp, smtp, smtps, telnet, tftp
Host x86_64-redhat-linux-gnu
SSL Version OpenSSL/0.9.8b
ZLib Version 1.2.3
libSSH Version libssh2/1.4.3
Did a live test order via PPEC paying with a VISA and had no problems. Full refund went just as smooth.

Why the error during the upgrade process?

Thanks / Frank