Wallet version 1.2.3 after 30-60 minutes lost all connections. Conf with correct 1.2.3 nodes, blockchain redownloaded from fresh bootstrap.
How to fix this?
Maybe debug.log can help:
2016-04-16 21:14:13 Misbehaving: 70.83.227.32:17172 (0 -> 100) BAN THRESHOLD EXCEEDED
2016-04-16 21:16:14 Misbehaving: 81.191.41.44:19903 (0 -> 100) BAN THRESHOLD EXCEEDED
2016-04-16 21:24:21 Misbehaving: 109.235.67.63:17170 (0 -> 100) BAN THRESHOLD EXCEEDED
2016-04-16 21:25:01 Misbehaving: 50.142.213.254:17172 (0 -> 100) BAN THRESHOLD EXCEEDED
Add the line below to the conf and restart the wallet. Also make sure you do not have 2 instances of the wallet running in Task Manager.
maxorphanblocks=10000
Edit: At least two instances trying to run in the same directory.