I have put your configuration, and nothing, I still have many connections rejected, or that do not find the route to the host...
For the cpuminer part, I have put instead of 16, I have lowered it to 8, in 16 it has taken me 3h to give me the error mentioned before, in 8, just a few minutes, now it is in 4... and it takes 2h, we will see...
I keep getting "Network is unreachable", "no route to host".... messages.
I have a list of ports to open in the router, because I don't know where else to touch.
...
2021-05-23 22:13:23 connect() to [2001:56a:7570:d300:907:3f35:d110:37bf]:62458 failed: Network is unreachable (101)
2021-05-23 22:16:23 CreateNewBlock(): block weight: 9947 txs: 10 fees: 80439 sigops 530
2021-05-23 22:16:27 connect() to [2003:c6:f15:600:386a:e72f:f3c9:8757]:62458 failed: Network is unreachable (101)
2021-05-23 22:17:23 CreateNewBlock(): block weight: 18170 txs: 19 fees: 152835 sigops 647
2021-05-23 22:22:12 Potential stale tip detected, will try using extra outbound peer (last tip update: 543 seconds ago)
2021-05-23 22:22:12 connect() to [2601:681:4e02:3110:9143:1001:5194:a6a4]:62458 failed: Network is unreachable (101)
2021-05-23 22:22:12 connect() to [2001:56a:7570:d300:7da4:c783:6544:fa55]:62458 failed: Network is unreachable (101)
2021-05-23 22:22:18 connect() to [2a00:1370:8117:946e:698b:d73a:5ae8:cca6]:62458 failed: Network is unreachable (101)
2021-05-23 22:22:19 connect() to [2604:3d08:5a7d:e000:b420:5e7b:2421:cab0]:62458 failed: Network is unreachable (101)
2021-05-23 22:23:46 connect() to 77.190.23.86:62458 failed after select(): No route to host (113)
About the connections, it is necessary to enable some port more, it happens to me in Linux (Ubuntu 20.04), in Win10... and MacOS 11.3.1?
sudo iptables -A INPUT -p tcp --dport 10000 -j ACCEPT
By the way, I noticed that if I set the testnet to 0, the boot image of the application, the logo is white, if I set it to 1, it is a bee swarm, besides my wallet address is not imported ... and it does not let me import the private key, it gives me error, my wallet, works with testnet=0, not with testnet=1.
Regards
#### Update ####
Running on RasPi4
$ litecoincashd -daemon
LitecoinCash server starting
$ tail -fhome/pi/.litecoincash/debug.log
2021-05-23 21:15:30 Using wallet wallet.dat
2021-05-23 21:15:30 CDBEnv::Open: LogDir=/home/pi/.litecoincash/database ErrorFile=/home/pi/.litecoincash/db.log
2021-05-23 21:15:30 Cache configuration:
2021-05-23 21:15:30 * Using 2.0MiB for block index database
2021-05-23 21:15:30 * Using 8.0MiB for chain state database
2021-05-23 21:15:30 * Using 440.0MiB for in-memory UTXO set (plus up to 286.1MiB of unused mempool space)
2021-05-23 21:15:30 init message: Loading block index...
2021-05-23 21:15:30 Opening LevelDB inhome/pi/.litecoincash/blocks/index
2021-05-23 21:15:30 Opened LevelDB successfully
2021-05-23 21:15:30 Using obfuscation key forhome/pi/.litecoincash/blocks/index: 0000000000000000
2021-05-23 21:17:11 LoadBlockIndexDB: last block file = 95
2021-05-23 21:17:11 LoadBlockIndexDB: last block file info: CBlockFileInfo(blocks=25049, size=23044274, heights=2369734...2394767, time=2021-05-01...2021-05-23)
2021-05-23 21:17:11 Checking all blk files are present...
2021-05-23 21:17:15 LoadBlockIndexDB: transaction index disabled
2021-05-23 21:17:15 Opening LevelDB inhome/pi/.litecoincash/chainstate
2021-05-23 21:17:15 Opened LevelDB successfully
2021-05-23 21:17:15 Using obfuscation key forhome/pi/.litecoincash/chainstate: 064225c592a4ced8
2021-05-23 21:17:18 Loaded best chain: hashBestChain=ee458d225514fee635ab68ed4caeb3862c1c7b5db816ee689312ee8dc03a6987 height=2394767 date=2021-05-23 21:10:32 progress=1.000000
2021-05-23 21:17:18 init message: Rewinding blocks...
2021-05-23 21:18:01 init message: Verifying blocks...
2021-05-23 21:18:01 Verifying last 24 blocks at level 3
2021-05-23 21:18:01 [0%]...[12%]...[20%]...[33%]...[41%]...[50%]...[62%]...[70%]...[83%]...[91%]...[DONE].
2021-05-23 21:18:01 No coin database inconsistencies in last 25 blocks (26 transactions)
2021-05-23 21:18:01 block index 150669ms
2021-05-23 21:18:01 init message: Loading wallet...
2021-05-23 21:18:01 nFileVersion = 160103
2021-05-23 21:18:01 Keys: 2004 plaintext, 0 encrypted, 2004 w/ metadata, 2004 total
2021-05-23 21:18:01 wallet 349ms
2021-05-23 21:18:01 setKeyPool.size() = 2000
2021-05-23 21:18:01 mapWallet.size() = 11
2021-05-23 21:18:01 mapAddressBook.size() = 2
2021-05-23 21:18:01 mapBlockIndex.size() = 2394799
2021-05-23 21:18:01 nBestHeight = 2394767
2021-05-23 21:18:01 torcontrol thread start
2021-05-23 21:18:01 Bound to [::]:62458
2021-05-23 21:18:01 Bound to 0.0.0.0:62458
2021-05-23 21:18:01 init message: Loading P2P addresses...
2021-05-23 21:18:01 Leaving InitialBlockDownload (latching to false)
2021-05-23 21:18:01 Imported mempool transactions from disk: 2 succeeded, 0 failed, 0 expired, 0 already there
2021-05-23 21:18:01 Loaded 5743 addresses from peers.dat 124ms
2021-05-23 21:18:01 init message: Loading banlist...
2021-05-23 21:18:01 init message: Starting network threads...
2021-05-23 21:18:01 net thread start
2021-05-23 21:18:01 addcon thread start
2021-05-23 21:18:01 dnsseed thread start
2021-05-23 21:18:01 msghand thread start
2021-05-23 21:18:01 BeeKeeper: Thread started
2021-05-23 21:18:01 init message: Done loading
2021-05-23 21:18:01 opencon thread start
2021-05-23 21:18:02 connect() to [2603:8080:a600:6200:6554:81dd:1955:ff25]:62458 failed: Network is unreachable (101)
2021-05-23 21:18:03 New outbound peer connected: version: 70015, blocks=2394771, peer=0
2021-05-23 21:18:12 Loading addresses from DNS seeds (could take a while)
2021-05-23 21:18:13 24 addresses found from DNS seeds
2021-05-23 21:18:13 dnsseed thread exit
2021-05-23 21:18:33 New outbound peer connected: version: 70015, blocks=2394771, peer=1
2021-05-23 21:18:39 New outbound peer connected: version: 70015, blocks=2394771, peer=2
2021-05-23 21:18:39 connect() to [2601:300:8001:2020:cc9c:2233:4858:e20d]:62458 failed: Network is unreachable (101)
2021-05-23 21:18:51 connect() to [2001:56a:7570:d300:e8ac:7ba7:d56c:4398]:62458 failed: Network is unreachable (101)
2021-05-23 21:19:02 connect() to [2603:6081:7840:1c2:b88d:4d1f:dffe:bcce]:62458 failed: Network is unreachable (101)
2021-05-23 21:19:03 New outbound peer connected: version: 70015, blocks=2394771, peer=3
2021-05-23 21:19:03 New outbound peer connected: version: 70015, blocks=2394771, peer=4
2021-05-23 21:19:04 New outbound peer connected: version: 70015, blocks=2394771, peer=5
2021-05-23 21:19:04 connect() to [2001:9b1:28fd:2d00:21f9:ce64:4f25:b36f]:62458 failed: Network is unreachable (101)
2021-05-23 21:19:10 connect() to [2003:dc:7729:6dc0:70:b72f:1917:2530]:62458 failed: Network is unreachable (101)
2021-05-23 21:19:11 New outbound peer connected: version: 70015, blocks=2394771, peer=6
2021-05-23 21:19:12 New outbound peer connected: version: 70015, blocks=2394771, peer=7
2021-05-23 21:20:13 connect() to [2804:14d:9483:39e:51ef:833d:ba32:da86]:62458 failed: Network is unreachable (101)
...