[Issue ]Connect LND and Core on different machines

Hi,

I'm trying to connect my LND node to my Core, both on different machines, but my LND is stucked after unlocking the wallet and I cannot make RPC calls as it shows the following error:

Code:

user@ubuntu:/usr$ lncli getinfo
[lncli] rpc error: code = Unknown desc = the RPC server is in the process of starting up, but not yet ready to accept calls

Error from lnd side:

Code:

2023-09-28 11:19:26.524 [DBG] RPCS: [/lnrpc.WalletUnlocker/UnlockWallet] requested
2023-09-28 11:19:27.087 [INF] LNWL: Opened wallet
2023-09-28 11:19:27.132 [INF] CHRE: Primary chain is set to: bitcoin
2023-09-28 11:19:32.512 [DBG] RPCS: [/lnrpc.Lightning/GetInfo] requested
2023-09-28 11:19:32.512 [ERR] RPCS: [/lnrpc.Lightning/GetInfo]: the RPC server is in the process of starting up, but not yet ready to accept calls

With a quick search on the Internet, I found that this could be because Core is not completely sync but it's:

Code:

{
"version": 220000,
"blocks": 809706,
"headers": 809706,
"verificationprogress": 0.9999983770795251,
....

Checking mempool.space 809706 is the last block.

The bitcoin.conf and lnd.conf are the following ones:

[Bitcoin.conf]

Code:

server=1
daemon=1

# Allows LND to connect to the Bitcoin node via an RPC user & pass
rpcuser=*********
rpcpassword=**********

# Allows LND & Bitcoin Core to communicate via ZeroMQ
zmqpubrawblock=tcp://127.0.0.1:28332
zmqpubrawtx=tcp://127.0.0.1:28333

# Allows other machines apart from localhost to connect to rpc server
rpcallowip=x.x.x.x/24
rpcbind=127.0.0.1

dbcache=20480

shrinkdebugfile=0

[LND]

Code:

[Application Options]
externalip=x.x.x.x

[Bitcoin]
bitcoin.active=true
bitcoin.mainnet=true
bitcoin.node=bitcoind

[Bitcoind]
bitcoind.rpchost=CoreIP (same network as externalip)
bitcoind.rpcuser=*******
bitcoind.rpcpass=********

bitcoind.zmqpubrawblock=tcp://127.0.0.1:28332
bitcoind.zmqpubrawtx=tcp://127.0.0.1:28333

Thanks in advance,
-SS