PayPal CURL connect time out

[ItalianBoutiqueShoes]

PayPal Europe version 3.10.10

From this morning I get timeout error in all PayPal connection:

Making new connection to 'api-3t.paypal.com/nvp'
Connect with CURL method successful
Sending this params:
METHOD=SetExpressCheckout&VERSION=106&PWD=*********&USER=info_api1.italian-boutique.it&SIGNATURE=*********&CANCELURL=https%3A%2F%2Fwww.artigianodelcuo.io%2Fen%2Forder%3Fpaypal_ec_canceled%3D1%26&RETURNURL=https%3A%2F%2Fwww.artigianodelcuo.io%2Fmodules%2Fpaypal%2Fexpress_checkout%2Fpayment.php&NOSHIPPING=0&BUTTONSOURCE=PRESTASHOP_ECM&L_PAYMENTREQUEST_0_NUMBER0=1670&L_PAYMENTREQUEST_0_NAME0=Dark+brown+flat+sandals+for+women+real+leather+Handmade+in+Italy+-+Color+%3A+Dark+brown%2C+Sole+%3A+leather%2C+Size+%3A+39&L_PAYMENTREQUEST_0_DESC0=Real+cuir+greased+vachetta+leather+women%27s+brown+s...&L_PAYMENTREQUEST_0_AMT0=72&L_PAYMENTREQUEST_0_QTY0=1&L_PAYMENTREQUEST_0_NUMBER1=711&L_PAYMENTREQUEST_0_NAME1=Handmade+in+Italy+mens+sandals+in+dark+brown+leather+-+Color+%3A+Dark+brown%2C+Sole+%3A+leather%2C+Size+%3A+43&L_PAYMENTREQUEST_0_DESC1=Dark+brown+greased+vachetta+leather+men+sandals+wi...&L_PAYMENTREQUEST_0_AMT1=72&L_PAYMENTREQUEST_0_QTY1=1&PAYMENTREQUEST_0_PAYMENTACTION=Sale&PAYMENTREQUE ST_0_CURRENCYCODE=EUR&PAYMENTREQUEST_0_SHIPPINGAMT=7.00&PAYMENTREQUEST_0_ITEMAMT=144&PAYMENTREQUEST_0_AMT=151.00&ADDROVERRIDE=0&EMAIL=daniele.gfgfgfgf%40gmail.com&PAYMENTREQUEST_0_SHIPTONAME=Daniele+gfgfgfgf&PAYMENTREQUEST_0_SHIPTOPHONENUM=3473224160&PAYMENTREQUEST_0_SHIPTOSTREET=Via+dei+gfgffgf%2C+29&PAYMENTREQUEST_0_SHIPTOSTREET2=&PAYMENTREQUEST_0_SHIPTOCITY=Roma&PAYMENTREQUEST_0_SHIPTOSTATE=FI&PAYMENTREQUEST_0_SHIPTOCOUNTRYCODE=IT&PAYMENTREQUEST_0_SHIPTOZIP=50000&SOLUTIONTYPE=Sole&LANDINGPAGE=Login&USER=info_api1.italian-boutique.it&PWD=*********&SIGNATURE=*********
Send with CURL method failed ! Error: connect() timed out!
Connect failed with fsockopen method

I tested my server I am I able to connect:

curl -d "test" https://api-3t.paypal.com/nvp -v

* About to connect() to api-3t.paypal.com port 443
*   Trying 173.0.88.101... connected
* Connected to api-3t.paypal.com (173.0.88.101) port 443
* successfully set certificate verify locations:
*   CAfile: /etc/pki/tls/certs/ca-bundle.crt
  CApath: none
* SSLv3, TLS handshake, Client hello (1):
SSLv3, TLS handshake, Server hello (2):
SSLv3, TLS handshake, CERT (11):
SSLv3, TLS handshake, Server finished (14):
SSLv3, TLS handshake, Client key exchange (16):
SSLv3, TLS change cipher, Client hello (1):
SSLv3, TLS handshake, Finished (20):
SSLv3, TLS change cipher, Client hello (1):
SSLv3, TLS handshake, Finished (20):
SSL connection using AES256-SHA
* Server certificate:
*      subject: /C=US/ST=California/L=San Jose/O=PayPal, Inc./OU=PayPal Production/CN=api-3t.paypal.com
*      start date: 2015-07-24 00:00:00 GMT
*      expire date: 2016-10-31 23:59:59 GMT
*      subjectAltName: api-3t.paypal.com matched
*      issuer: /C=US/O=VeriSign, Inc./OU=VeriSign Trust Network/OU=Terms of use at https://www.verisign.com/rpa ©10/CN=VeriSign Class 3 Secure Server CA - G3
* SSL certificate verify ok.
> POST /nvp HTTP/1.1
> User-Agent: curl/7.15.5 (i386-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5
> Host: api-3t.paypal.com
> Accept: */*
> Content-Length: 4
> Content-Type: application/x-www-form-urlencoded
>
> testHTTP/1.1 200 OK
< Date: Wed, 14 Sep 2016 13:55:04 GMT
< Server: Apache
< Cache-Control: max-age=0, no-cache, no-store, must-revalidate
< Pragma: no-cache
< Connection: close
< HTTP_X_PP_AZ_LOCATOR: slcb.slc
< Paypal-Debug-Id: b9eae9f74327
< Set-Cookie: X-PP-SILOVER=name%3DLIVE6.APIT.1%26silo_version%3D880%26app%3Dappdispatcher_apit%26TIME%3D3092699479%26HTTP_X_PP_AZ_LOCATOR%3Dslcb.slc; Expires=Wed, 14 Sep 2016 14:25:04 GMT; domain=.paypal.com; path=/; Secure; HttpOnly
< Set-Cookie: X-PP-SILOVER=; Expires=Thu, 01 Jan 1970 00:00:01 GMT
< Content-Length: 146
< Cache-Control: max-age=0, no-cache, no-store, must-revalidate
< Pragma: no-cache
< Content-Type: text/plain; charset=utf-8
Closing connection #0
* SSLv3, TLS alert, Client hello (1):
ACK=Failure&L_ERRORCODE0=81002&L_SHORTMESSAGE0=Unspecified%20Method&L_LONGMESSAGE0=Method%20Specified%20is%20not%20Supported&L_SEVERITYCODE0=Errorroot@italian [~]#

Can you help fixing it? Thanks, Daniele