Bismuth Nodes Troubleshooting

Can't Sync!

Checklist :

5658 port is open, no firewall, I can check it's available from the internet. for instance : https://www.yougetsignal.com/tools/open-ports/
host has its time net synced (important)

Config.txt file:

config.txt, or config_custom.txt if you use it: I have at least 50 threads thread_limit=75 is fine.
I have nothing in banlist
I have bp1.eggpool.net in whitelist (may help getting sync)
close and relaunch

If block height does not move, and you are behind (check http://bismuth.online for a live reference)

close node
open peers.txt, and replace the IP's with this peers.txt list peers.txt (official peers.txt from 4.2.8.1) and save file.
relaunch node

The following messages are part of normal operation and NOT harmuful:

handle(1764) Protocol version mismatch: mainnet0014, should be ['mainnet0016', 'mainnet0017']
worker(2650) Outbound: Disconnected from xx.xx.xx.xx:5658: Unexpected error, received: *
Outbound: Synchronization with xx.xx.xx.xx finished after: Block found, sending new sync request
Outbound: Synchronization with xx.xx.xx.xx finished after: No new block, sending new sync request
digest_block(1356) Check 1: A part of the block is invalid, rejected: Readjusted difficulty too low for block 391212 from xx.xx.xx.xx, should be at least 102.7072271672
Added 1 warning(s) to xx.xx.xx.xx: Check 1: rejected block (27 / 30)
Outbound: We have a lower block (467641) than xx.xx.xx.xx