System.Net.WebException The underlying connection was closed:
I am trying to backup to our company Back Blaze account, which hosts backups for lots of clients. On the server for a new client, I'm getting this error. I suspect it has something to do with TLS/SSL but I am not sure exactly what to check.
This is based on this thread:
Does MSP360/CloudBerry backup use a version of TLS or SSL?
, yes we do:
You'll see that we use TLS 1.0 (yes, for some users with legacy servers) 1.1, 1.2 with a bunch of ciphers.
I think you should be checking either your endpoint security software, the antivirus or the firewall.
The issue from that forum thread has been resolved quite some time ago.
Such connection errors may be caused by different factors, including problems on ISP side.
Make sure your system is up to date(unless you're using Server 2003, in that case we can't help), all the latest .net and C packages are installed and there's no antivirus intervention in your network environment.
Of course, if you're on trial version or a paying customer don't hesitate to contact us via support channel by opening a ticket or sending us the diagnostic logs, we're always glad to help.
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Error: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS
SSL_ERROR_SYSCALL Error observed by underlying SSL/TLS BIO: Connection reset by peer
ERROR - Unable to cast object of type 'System .String' to type 'System.Windows.Media.ImageSource'.
An error occurred (Code: 1003) An error occurred: Unable to read data from the transport connection
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