I have looked through here, and I found one person with the same problem but no solution.
I am syncing on a 3950x, to a HDD.
Its been 3 or 4 days now and I am still at height 860,000… I have 1GB internet connection so it is not that. I am unsure of the HDD is slowing syncing down, but my problems are much more than that.
Syncing starts fine and I connect to healthy nodes, but after a couple of hours syncing something happens, and ALL new nodes show their height at 0 and have barely any activity. Old nodes show up fine but they eventually drop and get replaced with nodes with height 0. It seems to be a bug, or something my ISP is doing maybe?
Here is what it looks like
FULL_NODE 182.136.144.250 51972/8444 6f7af282... Nov 12 07:27:53 0.0|0.0
-SB Height: 0 -Hash: Info...
FULL_NODE 116.24.95.245 47260/8444 4999d9b3... Nov 12 07:30:30 0.0|0.0
-SB Height: 0 -Hash: Info...
FULL_NODE 222.67.245.156 55095/8444 097f3810... Nov 12 07:55:37 0.0|0.1
-SB Height: 0 -Hash: Info...
FULL_NODE 119.78.254.3 31726/8444 fe28b36f... Nov 12 07:55:37 0.0|0.1
-SB Height: 0 -Hash: Info...
FULL_NODE 101.206.243.175 48716/8444 e770c638... Nov 12 07:45:14 0.0|0.0
-SB Height: 0 -Hash: Info...
FULL_NODE 5.146.192.66 31210/8444 1ab9780a... Nov 12 07:55:37 0.0|0.1
-SB Height: 0 -Hash: Info...
FULL_NODE 31.14.157.25 59712/8444 cb44498f... Nov 12 07:55:23 0.0|0.0
-SB Height: 0 -Hash: Info...
FULL_NODE 139.210.135.64 50843/8444 7f1a30af... Nov 12 07:55:38 0.0|0.1
-SB Height: 0 -Hash: Info...
FULL_NODE 116.208.173.94 64639/8444 6511e597... Nov 12 07:55:03 0.0|0.0
-SB Height: 0 -Hash: Info...
FULL_NODE 116.22.208.154 65194/8444 b254bb9a... Nov 12 07:55:37 0.0|0.0
-SB Height: 0 -Hash: Info...
FULL_NODE 183.228.216.170 14029/8444 6c6b66ef... Nov 12 07:40:06 0.0|0.0
-SB Height: 0 -Hash: Info...
FULL_NODE 111.42.111.210 36262/8444 5a4009b4... Nov 12 07:55:38 0.0|0.1
-SB Height: 0 -Hash: Info...
FULL_NODE 115.60.18.11 53948/8444 6162b87c... Nov 12 07:54:56 0.0|0.0
-SB Height: 0 -Hash: Info...
FULL_NODE 115.60.138.118 34631/8444 5f1f0e12... Nov 12 07:46:14 0.0|0.0
-SB Height: 0 -Hash: Info...
FULL_NODE 27.192.73.157 57508/8444 08a5039e... Nov 12 07:55:37 0.0|0.1
-SB Height: 0 -Hash: Info...
FULL_NODE 36.148.109.128 36425/8444 21a2c2f1... Nov 12 07:55:37 0.0|0.0
-SB Height: 0 -Hash: Info...
FULL_NODE 78.9.102.205 38426/8444 6deb9695... Nov 12 07:55:37 0.0|0.0
-SB Height: 0 -Hash: Info...
FULL_NODE 49.86.82.160 2341/8444 4d85defd... Nov 12 07:50:56 0.0|0.0
-SB Height: 0 -Hash: Info...
FULL_NODE 125.127.116.248 6405/8444 d2e2c8dd... Nov 12 07:46:03 0.0|0.0
-SB Height: 0 -Hash: Info...
This is what the logs at INFO level look like when this happens
2021-11-12T07:56:37.354 full_node chia.full_node.full_node: INFO peer disconnected {'host': '42.53.74.48', 'port': 8444}
2021-11-12T07:56:37.345 harvester chia.plotting.manager : INFO Found plot /mnt/Dummy3/plot-k32-2021-07-17-03-12-0bfd853704f541badf9a5f1bd50aa5e41c3b7ace14fa0d0cd03336137660d15b.plot of size 32
2021-11-12T07:56:37.355 full_node full_node_server : INFO Connection closed: 182.136.144.250, node id: 6f7af282bf0a1f448670553420c78314b232a265b05b600a98feee77d8dad9c6
2021-11-12T07:56:37.360 full_node chia.full_node.full_node: INFO peer disconnected {'host': '182.136.144.250', 'port': 8444}
2021-11-12T07:56:37.360 full_node full_node_server : INFO Connection closed: 116.24.95.245, node id: 4999d9b3b687d2d2b3f72175ab14671653145473fdaab45c1c67cef28c09319e
2021-11-12T07:56:37.361 full_node chia.full_node.full_node: INFO peer disconnected {'host': '116.24.95.245', 'port': 8444}
2021-11-12T07:56:37.361 full_node full_node_server : INFO Connection closed: 222.67.245.156, node id: 097f3810f0226c451048f388e87f9cf637225c5f600e4256e54cd2d7564e465c
2021-11-12T07:56:37.361 full_node chia.full_node.full_node: INFO peer disconnected {'host': '222.67.245.156', 'port': 8444}
2021-11-12T07:56:37.362 full_node full_node_server : INFO Connection closed: 119.78.254.3, node id: fe28b36f1168db02e8856db8bbb6a566d93a99630477984f47e496f872529099
2021-11-12T07:56:37.362 full_node chia.full_node.full_node: INFO peer disconnected {'host': '119.78.254.3', 'port': 8444}
2021-11-12T07:56:37.362 full_node full_node_server : INFO Connection closed: 101.206.243.175, node id: e770c638625a569210baafc08509961aae477562f2f35d79002ce992df873555
2021-11-12T07:56:37.362 full_node chia.full_node.full_node: INFO peer disconnected {'host': '101.206.243.175', 'port': 8444}
2021-11-12T07:56:37.345 harvester chia.plotting.manager : INFO Found plot /mnt/Dummy3/plot-k32-2021-07-17-13-01-0eb764ef1dde773ee1fac0bfe1777b886bcb2f192b159b2433dbf17a7a1eaefb.plot of size 32
2021-11-12T07:56:37.367 full_node full_node_server : INFO Connection closed: 5.146.192.66, node id: 1ab9780a340dce0179ecc1cb5200623488205cd91e600827458697e2ed760b73
2021-11-12T07:56:37.371 full_node chia.full_node.full_node: INFO peer disconnected {'host': '5.146.192.66', 'port': 8444}
2021-11-12T07:56:37.371 full_node full_node_server : INFO Connection closed: 31.14.157.25, node id: cb44498f5532d53086171d230623759905bf631d4192a3f9a1694e6c0e2f77e7
2021-11-12T07:56:37.372 full_node chia.full_node.full_node: INFO peer disconnected {'host': '31.14.157.25', 'port': 8444}
2021-11-12T07:56:37.372 full_node full_node_server : INFO Connection closed: 139.210.135.64, node id: 7f1a30affaedc764566233280bb5722be46a4e02c3aec3545eab108650bf378b
2021-11-12T07:56:37.372 full_node chia.full_node.full_node: INFO peer disconnected {'host': '139.210.135.64', 'port': 8444}
2021-11-12T07:56:37.372 full_node full_node_server : INFO Connection closed: 116.208.173.94, node id: 6511e59709c9e23d888b2105651907ba16e1055c23280d20b8bc9c37751664a5