Testnet Bitcoin Connection refused (111) I have ah Raspberry and i will a BTC &amp; Lightning node set up.
my bitcoin.conf
testnet=3 
Bitcoind options
server=1
daemon=1
txindex=1
disablewallet=1 
 Connection settings
rpcuser=raspibolt
rpcpassword=1212431
addnode=104.237.131.138
addnode=151.80.205.132
addnode=192.155.82.123
addnode=74.220.255.190
addnode=80.100.203.151
 Raspberry Pi optimizations
dbcache=100
maxorphantx=10
maxmempool=50
maxconnections=40
maxuploadtarget=5000

I have the addnode from this thread:
testnet3 node sync process is very slow
in the getnetworkinfo stands:
&quot;version&quot;: 160000,
  &quot;subversion&quot;: &quot;/Satoshi:0.16.0/&quot;,
  &quot;protocolversion&quot;: 70015,
  &quot;localservices&quot;: &quot;000000000000040d&quot;,
  &quot;localrelay&quot;: true,
  &quot;timeoffset&quot;: 0,
  &quot;networkactive&quot;: true,
  &quot;connections&quot;: 17,
  &quot;networks&quot;: 
  &quot;warnings&quot;: &quot;Warning: unknown new rules activated (versionbit 28)&quot;

and in the debug log stands:
2018-04-24 17:39:51 connect() to 85.207.214.190:18333 failed after select(): Connection refused (111)
2018-04-24 17:38:16 connect() to [2001:470:c144:cafe::a]:18333 failed: Network is unreachable (101)

anyone have an idea where the error lies?
my testnet port: 18333 is open.
many thanks for the help!
regards
Connection refused means there's something prevents reaching your server. 

make sure that your firewall allowing connections to your port and try to add this line to your bitcoin config: 

rpcallowip=0.0.0.0/0