Cant connect to Bitcoin Node on local network

Support
1

I am running Bisq and also a Bitcoin Core full node. Both are on the same LAN segment (10.x.x.x)

In Bisq, I configured the bitcoin node with its internal LAN address. However it never seems to get connected.
I made sure that I can connect to the node, and with telnet I can reach that port 8333 from the bisq machine.

Here the relevant log snippet:

Dec-30 20:38:25.613 [PeerGroup Thread] INFO  o.b.c.PeerGroup: Attempting connection to [10.0.0.13]:8333     (0 connected, 1 pending, 1 max) 
Dec-30 20:38:25.617 [NioClientManager] INFO  o.b.n.NioClientManager: Connected to /10.0.0.13:8333 
Dec-30 20:38:25.617 [NioClientManager] INFO  o.b.core.Peer: Announcing to /10.0.0.13:8333 as: /bitcoinj:0.14.4/Bisq:0.6.2/ 
Dec-30 20:38:25.624 [NioClientManager] INFO  o.b.core.Peer: [10.0.0.13]:8333: Got version=70015, subVer='/Satoshi:0.15.1/', services=0x12, time=2017-12-30 20:38:25, blocks=501766 
Dec-30 20:38:25.624 [NioClientManager] INFO  o.b.core.Peer: [10.0.0.13]:8333: Peer does not have a copy of the block chain. 
Dec-30 20:38:25.624 [NioClientManager] INFO  o.b.c.PeerGroup: [10.0.0.13]:8333: Peer died      (0 connected, 0 pending, 1 max) 
Dec-30 20:38:25.625 [PeerGroup Thread] INFO  o.b.c.PeerGroup: Peer discovery took 2.400 ?s and returned 0 items 
Dec-30 20:38:25.625 [PeerGroup Thread] INFO  o.b.c.PeerGroup: Waiting 3375 msec before next connect attempt to [10.0.0.13]:8333 
Dec-30 20:38:25.626 [NioClientManager] WARN  o.b.c.PeerSocketHandler: [10.0.0.13]:8333 -  org.bitcoinj.core.ProtocolException: Received AlertMessage before version handshake is complete.

This is repeated on and on.
The node is not running a full blockchain copy (which is correctly detected), I keep only the last 10GB (pruning active).

Any ideas what goes wrong?

2

Perhaps Bisq needs a full blockchain. It seems like you are not having network issues, so it probably is incompatibility with the node.

3

Seems your node is in pruned mode or not fully synced.

Peer does not have a copy of the block chain.

4

Ok, then it should be clarified in FAQ or help texts, that only nodes with the full complete chain can be used (flag “NODE_NETWORK”).
Also, the message “Peer does not have a copy of the block chain.” should be a warning at least, instead of Info.