ssl certificate verify failed

Today, I encountered a problem when I access WebService through C #. First, I generated a call proxy class through the WSDL provided by the other party. When I tested whether the access was normal, I accessed the formal environment https://api.xxx.xx and everything was normal, when the access test environment is https://apitest.xxx.xxx, The innerexception message "Basic Connection closed: failed to establish trust for

Pip Install Selenium error: Could not fetch URL https://pypi.python.org/simple/selenium/: There is a probLem confirming the SSL certificate: [ssl:certificate_verify_failed] CertificateVerify failed (_ssl.c:720)-Skipping Pip._vendor.requests.exceptions.sslerror: [ssl:certificate_verify_failed] Certi Ficate Verify

for validating a certificateServicepointmanager.servercertificatevalidationcallback =(ObjectSender, X509Certificate certificate, X509chain chain, sslpolicyerrors sslpolicyerrors) = {returntrue; };//find a system-imported certificateX509store Certstore =NewX509store (storename.my, storelocation.localmachine);Certstore.open (openflags.readonly);X509Certificate2Collection certcollection = CertStore.Certificates.Find (X509findtype.findbysubjectname,"Test

now many enterprise customers in the external network use VDI, will buy the domain name, but combined with NetScaler, must buy SSL domain name certificate, often in the project, WI server can not connect the Internet, resulting in WI due to root certificate and intermediate license is not updated, Causes the built-in partial