[player] lost connection: failed to verify username

Today one of my players (using badlion client) of my small smp running on fabric had issues connecting to the server. As ive never seen this issue before, i am asking if i as the serverowner can do anyting to prevent this issue to happen and if so what. After reloading the whitelist and him refreshing his serverpage the issue seemed resolved only for it to happen again a few minutes later. Heres the log from my console (ip censored for obvious resons but its the same player joining/disconnecting each time)
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19 Replies
Admincraft Meta
Thanks for asking your question!
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Requested by seibot187#0
CtrlAltDelMe
CtrlAltDelMe2y ago
Share logs here !logs
Carl-bot
Carl-bot2y ago
Please check your server log for errors from your plugins.
If you need further help understanding the errors, please send us the whole log file. Where can I find the server log? Logs are stored in <server_directory>/logs/. Search for a file explorer in your server's management interface and navigate to that directory. Once you've opened that up, search for the latest.log file. Some providers have a separate page for logs and may hide the "logs" folder. On Aternos: • Go to https://aternos.org/log/. On Minehut and server.pro: • Go to the "files" tab in the left menu. • Navigate to the root directory of your server. • From there navigate to /logs/latest.log. What should I do with the log? • First of all, read it! I mean, that's what you do all the time when you run a server, isn't it? Try to locate any errors that have anything to do with the issue you are facing. • If you got the latest.log file or created a .txt file with the necessary errors you can upload these directly to the channel, but we prefer if you upload them to https://mclo.gs/. • If you have trouble downloading the log file, copy/paste the text to a paste service (like mclogs). Copy the link that it gives you and send it to us. (Don't worry, McLogs hides your users' IPs.)
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CtrlAltDelMe
CtrlAltDelMe2y ago
Is this an offline server? Seems to be online based from the UUIDs
SeiBot187
SeiBot187OP2y ago
Its an online server running fabric for 1.20.1 using autoplug if that makes a difference Will do as soon as i can
CtrlAltDelMe
CtrlAltDelMe2y ago
Autoplug as in automatic updates?
SeiBot187
SeiBot187OP2y ago
https://autoplug.one/ Thats their website, all they do is keep plugins and serversoftware up to date Also makes setup a bit easier
SeiBot187
SeiBot187OP2y ago
https://mclo.gs/SL5Yp6d heres the logs from both startup and the timeframe where the issue persisted i am relatively new to serverhosting and cant really see any issues that might be serversided but i could just aswell be totally wrong
mclo.gs
Fabric 1.20.1 Server Log [#SL5Yp6d]
294 lines | 29 errors
Discount Milk
Discount Milk2y ago
Cracked servers don't verify usernames. User should try restarting his pc, if that doesn't work use the vanilla client.
SeiBot187
SeiBot187OP2y ago
Alr, we'll try, just didnt want to be that guy that tells players what client to use esp. if it works fine for other servers. Thanks to both of you for your help, ill come back to this thread if the issue persists
CtrlAltDelMe
CtrlAltDelMe2y ago
Be careful with that Do not let it auto update because who knows, a mod update could break something Although if it allows you to check for updates & confirm to update, it would be hot
QarthO
QarthO2y ago
yeah, its never recommend to do any kind of auto updates. if any mod changes something major (intentional or a major bug in an update) and u update, ur server can instantly lose data and or be corrupted if for what so ever reason u decide to still use an auto update (not rec) pls make sure ur doing automated backups on everything necesary before the auto update
SeiBot187
SeiBot187OP2y ago
Ofc, i an doing daily restarts and backups to my nas which is also done though autoplug, probably not the best way but it works for now
ProGamingDk
ProGamingDk2y ago
ultimateautorestarts, and Drivebackupv2
SeiBot187
SeiBot187OP2y ago
thx for the reccomendation, gonna use them the next time ill set up a new server
SeiBot187
SeiBot187OP2y ago
Issue still persists after pc restart, using vanilla client and server restart. Strangely works after a random amount of time/spamming the refresh button. Also this time its a different person/player connecting from a different network
No description
SeiBot187
SeiBot187OP2y ago
Leads me to believe its a serversided issue, have done some research and tried common fixes from random articles/reddit posts, sadly nothing seemed to work
Discount Milk
Discount Milk2y ago
It's usually not server sided. Usually client sided. If the server logs say ID=NULL for example, that's client sided.
SeiBot187
SeiBot187OP2y ago
Well since i really dont know ahat to do to fix it and seeing as i dont get logs that tell me anything i am just going to blame it onto the players and tell them to try, try, try again or smth like that... Anyways thanks for your help

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