@Rigo
I'm also not able to access either the 2.44 or 2.45 update,
below is the first part of my au.log file:
AmiUpdate 2.43 (29.12.2016) Part of the AmiUpdate suite
Log opened on 20-5-2018 at 13:03:26
13:03:26 Program started
13:03:26 Started system scan
13:03:26 Found host machine as: X1000
13:03:26 Synchronising with server: 'www.amiupdate.net'...
13:03:26 Requesting HTTP header file from server...
13:03:26 Testing for active network connections...
13:03:26 Found interface RTL8139, testing...
13:03:26 Interface is currently configured, checking state...
13:03:26 Interface is UP, check complete
13:03:26 Trying to connect to:
www.amiupdate.net on port: 80
13:04:40 Failed
13:04:40 Failed to establish connection to:
www.amiupdate.net error: Connection to the server failed
13:04:40 Failed to receive HTTP header file...
13:04:40 HTTPFetch error: Transferring the file was not possible due to a previous error
13:04:40 Synchronising with server: 'update.amigaos.net'...
13:04:40 Requesting HTTP header file from server...
13:04:40 Testing for active network connections...
13:04:40 Found interface RTL8139, testing...
13:04:40 Interface is currently configured, checking state...
13:04:40 Interface is UP, check complete
13:04:41 Trying to connect to: www2.hyperion-entertainment.com on port: 80
13:04:41 Connected
13:04:41 Received HTTP header file...
13:04:41 Basic Authorisation required for this update
13:04:41 User and Pass found in sitelist
13:04:41 Authorizing...
13:04:41 Testing for active network connections...
13:04:41 Found interface RTL8139, testing...
13:04:41 Interface is currently configured, checking state...
13:04:41 Interface is UP, check complete
13:04:41 Trying to connect to: www2.hyperion-entertainment.com on port: 80
13:04:42 Connected
13:04:42 Received HTTP header file...
13:04:42 Failed to get filesize from header, Content-Length: tag missing
13:04:42 Starting file download (unknown size )
13:04:42 Testing for active network connections...
13:04:42 Found interface RTL8139, testing...
13:04:42 Interface is currently configured, checking state...
13:04:42 Interface is UP, check complete
13:04:42 Trying to connect to: www2.hyperion-entertainment.com on port: 80
13:04:42 Connected
13:04:43 Synchronisation successful
Hopefully this will be of some help...