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Add any solutions you have found that you believe might be helpful to other users.

To find solutions, you might want to search for the error code (be sure to check 'Search comments?' in the search criteria.)

[Chris Ohmstede]

Error codes and what causes them:

[Chris Ohmstede]

Connection failure

Windows:
Error code: 10065
No route to host.

Linux:
Error code: 113
No route to host

DNS is able to resolve an IP address but the machine is not responding. The port is blocked by a firewall, the network connection to the machine is broken or the machine itself is down.

[Chris Ohmstede]

Connection failure

Windows:
Error code: 10061
Connection refused.

Linux:
Error code: 111
Connection refused

DNS is able to resolve an IP address and the machine is responding. The port is not blocked by a firewall but it is not listening (active.)

[Chris Ohmstede]

getaddrinfo failure

Windows:
getaddrinfo failed
Error code: 11001
No such host is known.

Linux:
getaddrinfo failed
Error code: -2
Name or service not known

DNS is unable to resolve the IP address. The machine is not viewable from your subnet or the machine name is mistyped.

[Chris Ohmstede]

Connection failure

Windows:
Error code: 10060
Connection timed out.

Linux:
Error code: 115
Operation now in progress

DNS is able to resolve the IP address, the machine is responding, and the port may or may not be listening (active.) You may need to increase the receive timeout but, more likely, the port is blocked by a firewall.

[Chris Ohmstede]

Could not find a bindable address

Windows:
Error code: 10048
Address already in use.

Linux:
Error code: 98
Address already in use

The bind socket function failed. Another application / service is already connected / listening on the port or the operating system has not yet released it after a close.

[Chris Ohmstede]

Could not find a bindable address

Windows:
Error code: 10013
Permission denied.

Linux:
Error code: 13
Permission denied

The bind socket function failed. The port is reserved by the operating system.

For example:

Windows:
port 445: SMB
port 1025: RPC

Linux:
ports 1 – 1024 are reserved for root.