Why “Syn Graph: true” not showing on the LND node?

[TokenTikas]

First of all, I fully downloaded Bitcoin Core by participating in NotATether’s [CHALLENGE] Run A Bitcoin Node and successfully completed the full 14-day challenge. Bitcoin Core is now fully synced.

Code:

{
  "chain": "main",
  "blocks": 929206,
  "headers": 929206,
  "bestblockhash": "000000000000000000016500b41215134cf2dbf9f4a9faac6ab4478e78695282",
  "difficulty": 148195306640204.7,
  "time": 1766542537,
  "mediantime": 1766539035,
  "verificationprogress": 0.9999967336594739,
  "initialblockdownload": false,
  "chainwork": "000000000000000000000000000000000000000100a36d1b742c64feb580b545",
  "size_on_disk": 49968596711,
  "pruned": true,
  "pruneheight": 900821,
  "automatic_pruning": true,
  "prune_target_size": 49999249408,
  "warnings": [
  ]
}

After that, I tried to participate in NotATether’s GingerWallet.io | LN Quest. When I first run LND, it usually shows “synced graph: false”, but if everything is working properly, it should change to “synced graph: true” after some time. However, even after keeping it running for a long time, “synced graph: true” never appeared.

Code:

C:\lnd>lncli getinfo
{
    "version":  "0.20.0-beta commit=v0.20.0-beta",
    "commit_hash":  "b9ea7070c20ad2ca8514a47d9b4d560a501f0487",
    "identity_pubkey":  "023edaa7bfe0dcc2726d2abaf0434b5cbdb9e9e2525e14d80b697cd842f827afcd",
    "alias":  "MyLNDNode",
    "color":  "#3399ff",
    "num_pending_channels":  0,
    "num_active_channels":  0,
    "num_inactive_channels":  0,
    "num_peers":  0,
    "block_height":  929206,
    "block_hash":  "000000000000000000016500b41215134cf2dbf9f4a9faac6ab4478e78695282",
    "best_header_timestamp":  "1766542537",
    "synced_to_chain":  true,
    "synced_to_graph":  false,
    "testnet":  false,
    "chains":  [
        {
            "chain":  "bitcoin",
            "network":  "mainnet"
        }
    ],
    "uris":  [],
    "features":  {
        "0":  {
            "name":  "data-loss-protect",
            "is_required":  true,
            "is_known":  true
        },
        "5":  {
            "name":  "upfront-shutdown-script",
            "is_required":  false,
            "is_known":  true
        },
        "7":  {
            "name":  "gossip-queries",
            "is_required":  false,
            "is_known":  true
        },
        "8":  {
            "name":  "tlv-onion",
            "is_required":  true,
            "is_known":  true
        },
        "12":  {
            "name":  "static-remote-key",
            "is_required":  true,
            "is_known":  true
        },
        "14":  {
            "name":  "payment-addr",
            "is_required":  true,
            "is_known":  true
        },
        "17":  {
            "name":  "multi-path-payments",
            "is_required":  false,
            "is_known":  true
        },
        "23":  {
            "name":  "anchors-zero-fee-htlc-tx",
            "is_required":  false,
            "is_known":  true
        },
        "25":  {
            "name":  "route-blinding",
            "is_required":  false,
            "is_known":  true
        },
        "27":  {
            "name":  "shutdown-any-segwit",
            "is_required":  false,
            "is_known":  true
        },
        "30":  {
            "name":  "amp",
            "is_required":  true,
            "is_known":  true
        },
        "31":  {
            "name":  "amp",
            "is_required":  false,
            "is_known":  true
        },
        "35":  {
            "name":  "quiescence",
            "is_required":  false,
            "is_known":  true
        },
        "45":  {
            "name":  "explicit-commitment-type",
            "is_required":  false,
            "is_known":  true
        },
        "261":  {
            "name":  "endorsement-x",
            "is_required":  false,
            "is_known":  true
        },
        "2023":  {
            "name":  "script-enforced-lease",
            "is_required":  false,
            "is_known":  true
        }
    },
    "require_htlc_interceptor":  false,
    "store_final_htlc_resolutions":  false
}

I tried to get help from Satofan44, LND Node and the tutorial and Mahiyammahi to run Windows LND Node tutorials were completely helpful. I successfully ran the Node. Later, due to synced graph: false, I tried to contact Satofan44 and tried to get help by posting in his tutorial thread, but there was no solution.

Code:

synced graph: false

Even after connecting peers, the result is still not correct. I’ve already connected three peers, but there’s no change in the outcome at all.

Code:

C:\lnd>lncli connect 3.33.236.230:9735
[lncli] target address expected in format: pubkey@host:port

C:\lnd>lncli connect 03864ef025fde8fb587d989186ce6a4a186895ee44a926bfc370e2c366597a3f8f@3.33.236.230:9735
{
    "status":  "connection to 03864ef025fde8fb587d989186ce6a4a186895ee44a926bfc370e2c366597a3f8f@3.33.236.230:9735 initiated"
}

C:\lnd>lncli connect 035e4ff418fc8b5554c5d9eea66396c227bd429a3251c8cbc711002ba215bfc226@170.75.163.209:9735
{
    "status":  "connection to 035e4ff418fc8b5554c5d9eea66396c227bd429a3251c8cbc711002ba215bfc226@170.75.163.209:9735 initiated"
}

C:\lnd>lncli connect 0242a4ae0c5bef18048fbecf995094b74bfb0f7391418d71ed394784373f41e4f3@3.124.63.44:9735
{
    "status":  "connection to 0242a4ae0c5bef18048fbecf995094b74bfb0f7391418d71ed394784373f41e4f3@3.124.63.44:9735 initiated"
}

I checked "lncli listpeers" and there the synced type is 'passive' and I can see it properly but still 'synced graph: true' is not coming. I have kept the PC on and I can see that Bitcoin is running properly. So I can't understand where the problem is.

Code:

C:\lnd>lncli listpeers
{
    "peers":  [
        {
            "pub_key":  "03864ef025fde8fb587d989186ce6a4a186895ee44a926bfc370e2c366597a3f8f",
            "address":  "3.33.236.230:9735",
            "bytes_sent":  "4429",
            "bytes_recv":  "944815",
            "sat_sent":  "0",
            "sat_recv":  "0",
            "inbound":  false,
            "ping_time":  "-1",
            "sync_type":  "PASSIVE_SYNC",
            "features":  {
                "0":  {
                    "name":  "data-loss-protect",
                    "is_required":  true,
                    "is_known":  true
                },
                "7":  {
                    "name":  "gossip-queries",
                    "is_required":  false,
                    "is_known":  true
                },
                "8":  {
                    "name":  "tlv-onion",
                    "is_required":  true,
                    "is_known":  true
                },
                "11":  {
                    "name":  "unknown",
                    "is_required":  false,
                    "is_known":  false
                },
                "13":  {
                    "name":  "static-remote-key",
                    "is_required":  false,
                    "is_known":  true
                },
                "14":  {
                    "name":  "payment-addr",
                    "is_required":  true,
                    "is_known":  true
                },
                "17":  {
                    "name":  "multi-path-payments",
                    "is_required":  false,
                    "is_known":  true
                },
                "19":  {
                    "name":  "wumbo-channels",
                    "is_required":  false,
                    "is_known":  true
                },
                "23":  {
                    "name":  "anchors-zero-fee-htlc-tx",
                    "is_required":  false,
                    "is_known":  true
                },
                "25":  {
                    "name":  "route-blinding",
                    "is_required":  false,
                    "is_known":  true
                },
                "27":  {
                    "name":  "shutdown-any-segwit",
                    "is_required":  false,
                    "is_known":  true
                },
                "29":  {
                    "name":  "unknown",
                    "is_required":  false,
                    "is_known":  false
                },
                "35":  {
                    "name":  "quiescence",
                    "is_required":  false,
                    "is_known":  true
                },
                "37":  {
                    "name":  "unknown",
                    "is_required":  false,
                    "is_known":  false
                },
                "39":  {
                    "name":  "unknown",
                    "is_required":  false,
                    "is_known":  false
                },
                "43":  {
                    "name":  "unknown",
                    "is_required":  false,
                    "is_known":  false
                },
                "44":  {
                    "name":  "explicit-commitment-type",
                    "is_required":  true,
                    "is_known":  true
                },
                "47":  {
                    "name":  "scid-alias",
                    "is_required":  false,
                    "is_known":  true
                },
                "61":  {
                    "name":  "rbf-coop-close",
                    "is_required":  false,
                    "is_known":  true
                },
                "155":  {
                    "name":  "unknown",
                    "is_required":  false,
                    "is_known":  false
                },
                "561":  {
                    "name":  "unknown",
                    "is_required":  false,
                    "is_known":  false
                },
                "563":  {
                    "name":  "unknown",
                    "is_required":  false,
                    "is_known":  false
                }
            },
            "errors":  [],
            "flap_count":  0,
            "last_flap_ns":  "0",
            "last_ping_payload":  ""
        },
        {
            "pub_key":  "0242a4ae0c5bef18048fbecf995094b74bfb0f7391418d71ed394784373f41e4f3",
            "address":  "3.124.63.44:9735",
            "bytes_sent":  "261",
            "bytes_recv":  "261",
            "sat_sent":  "0",
            "sat_recv":  "0",
            "inbound":  false,
            "ping_time":  "-1",
            "sync_type":  "PASSIVE_SYNC",
            "features":  {
                "0":  {
                    "name":  "data-loss-protect",
                    "is_required":  true,
                    "is_known":  true
                },
                "5":  {
                    "name":  "upfront-shutdown-script",
                    "is_required":  false,
                    "is_known":  true
                },
                "7":  {
                    "name":  "gossip-queries",
                    "is_required":  false,
                    "is_known":  true
                },
                "8":  {
                    "name":  "tlv-onion",
                    "is_required":  true,
                    "is_known":  true
                },
                "12":  {
                    "name":  "static-remote-key",
                    "is_required":  true,
                    "is_known":  true
                },
                "14":  {
                    "name":  "payment-addr",
                    "is_required":  true,
                    "is_known":  true
                },
                "17":  {
                    "name":  "multi-path-payments",
                    "is_required":  false,
                    "is_known":  true
                },
                "23":  {
                    "name":  "anchors-zero-fee-htlc-tx",
                    "is_required":  false,
                    "is_known":  true
                },
                "25":  {
                    "name":  "route-blinding",
                    "is_required":  false,
                    "is_known":  true
                },
                "27":  {
                    "name":  "shutdown-any-segwit",
                    "is_required":  false,
                    "is_known":  true
                },
                "31":  {
                    "name":  "amp",
                    "is_required":  false,
                    "is_known":  true
                },
                "45":  {
                    "name":  "explicit-commitment-type",
                    "is_required":  false,
                    "is_known":  true
                },
                "2023":  {
                    "name":  "script-enforced-lease",
                    "is_required":  false,
                    "is_known":  true
                }
            },
            "errors":  [],
            "flap_count":  0,
            "last_flap_ns":  "0",
            "last_ping_payload":  ""
        }
    ]
}

So, What should I do now, and what could be the reason why “synced graph: true” is not showing? Everything seems to be running fine, but I still don’t understand why this issue is happening.

[Mahiyammahi]

1. Try connceting multiple peers 4-5 peers at once. But in your case you did try to connect peers manually.

2. Try to run the node On Tor , and connect with some to public node.

3. You can try by connecting VPN , if your ISP firewall blocking then it will bypass it.

4. Creating a channel makes these steps faster , cause no nodes stay connected with your lnd. cause your node has no active channel.

[Donneski]

To the best of my knowledge about the outputs you shared, your node actually looks fine

Bitcoin Core is fully synced and LND is correctly synced to chain. The confusion here is around synced_to_graph which isn’t a general node health flag. It only turns true once LND has fully synced the Lightning gossip graph.

For nodes with no open channels this often happens very slowly or not at all. Seeing PASSIVE_SYNC in listpeers is normal and means that gossip is flowing just passively. I’ve seen nodes stay like this indefinitely until a channel is opened after which synced_to_graph flips quickly.

So from what I'm seeing, nothing here suggests a broken setup. If you need that flag to turn true (e.g. for a quest) opening a small channel is usually the fastest way.