LND Peer Connection Issues -- Fix Connect Failures

Symptom

lncli connect fails or peer disconnects immediately.

Check URI Format

lncli connect pubkey@ip:9735

Verify Port 9735 Open

nc -zv node_ip 9735
sudo ufw allow 9735/tcp

Set Listen Address in lnd.conf

listen=0.0.0.0:9735
externalip=your.public.ip:9735

NAT: Forward Port 9735

Forward TCP 9735 to your node in router settings, then verify:

lncli getinfo | grep uris

TOR-Only Peers

toractive=true
torcontrol=127.0.0.1:9051

Check Logs

grep -i peer ~/.lnd/logs/bitcoin/mainnet/lnd.log | tail -30