Here's my BNetLog. It looks like the gateway IP might be wrong (but might also just be address-resolved).
Code:
3/15 10:29:37.103 Connecting to Battle.net...
3/15 10:29:37.118 querying gateway bnetd.arimyth.com
3/15 10:29:37.337 searching for the fastest server
3/15 10:29:37.415 Connected to server 192.99.6.143
3/15 10:29:37.431 accessing accounts
3/15 10:29:37.603 Checking for the latest version
3/15 10:29:37.790 Connected to Battle.net
D2SE_setup.ini should be configured to point you towards bnetd.arimyth.com, so it's hard to tell what's happened. Consider replacing your High-Res setup file with
this one, but if it seems like other things are behaving oddly, then consider downloading the core files and main package again.