Jump to content
Please read the rules and FAQ before starting a new topic
Currently supported: All versions

Failed to Authenticate error only on Forge

Rhiku

By Rhiku
in Support & Bug Reports

 Share

Recommended Posts

Rhiku Tree Puncher

Rhiku

Posted
Posted

Hi, I've been having this issue for the past 3 days trying to fix it, for some reason I'm having issues with authenticating but it only happens when using forge. Whenever I try to join any server on forge it gives a "Failed to login: the authentication servers are currently not reachable" error. It also applies for singleplayer worlds, my skin is always steve since it can't authenticate. Any help on this issue would be greatly appreciated as I feel like I've tried literally everything I possibly can. Just so that you know, I've already checked my hosts file to verify that it's not blocking any minecraft connections, as well as various other fixes that haven't ended up resolving the issue. The only way I've found to get around the error is to use a VPN.

ChampionAsh5357 Reality Controller

ChampionAsh5357

Posted
Posted

So, after talking it over with somebody who knows more about connection protocols, it is likely that you have an improperly configured firewall that only blocking traffic in one direction instead of both as it is trying to connect with ipv6. You either need to block both directions or neither.

Rhiku Tree Puncher

Rhiku

Posted
  • Author
Posted

Sorry about that, just thought mediafire was well known enough since I've been using it for years. Kind of my go-to file sharing site. Also cause I didn't know how to use github, but I think I figured it out. Here's the link.

https://gist.github.com/Rhikuu/676fb1519b172807bdff5bcd77c23e12

Also just got your new reply, what exactly would be blocked? I've already allowed the 25565 port through incoming and outgoing connections through my firewall for minecraft.

ChampionAsh5357 Reality Controller

ChampionAsh5357

Posted
Posted
On 12/30/2022 at 1:36 PM, Rhiku said:

Also just got your new reply, what exactly would be blocked? I've already allowed the 25565 port through incoming and outgoing connections through my firewall for minecraft.

It's not a firewall thing, it has to do with what you are using to connect with your ip address, either ipv4 or ipv6. From what I've been told, it's likely that one direction is blocking the ipv6 traffic, using ipv4 instead preventing the connection from occurring. As such, you need to change the settings for your device or router to either block ipv6 traffic incoming and outgoing, or don't block either.

  • Like 1
Rhiku Tree Puncher

Rhiku

Posted
  • Author
Posted

Nevermind that was actually very easy to figure out, thanks so much! That actually seemed to fix the issue. I joined the server with no problem this time.

ChampionAsh5357 Reality Controller

ChampionAsh5357

Posted
Posted
19 hours ago, Rhiku said:

I am a little confused though, why is this issue only on forge? Is there something forge changes that would cause such an issue?

A PR was made to Forge which supports ipv6; vanilla meanwhile does not have full support for ipv6 and there is no mixin in base fabric which supports it as well.

  • 5 weeks later...
Slidebrain Tree Puncher

Slidebrain

Posted
Posted
On 1/1/2023 at 7:27 PM, Rhiku said:

Nevermind that was actually very easy to figure out, thanks so much! That actually seemed to fix the issue. I joined the server with no problem this time.

Hey there, now i gotta ask since i'm in the same situation, how did you fix it in the end?

Rhiku Tree Puncher

Rhiku

Posted
  • Author
Posted
2 hours ago, Slidebrain said:

Hey there, now i gotta ask since i'm in the same situation, how did you fix it in the end?

You just have to disable ipv6 in your network adapter settings.

  • Like 1
  • 1 year later...
Peekofwar Tree Puncher

Peekofwar

Posted
Posted

This is the second time I've had issues connecting to a modded Minecraft server. The first time was my private ATM8 server, which was fine for a while before it kept saying authentication servers were down. I assumed this was caused by something in the ATM8 modpack, and effectively killed that private server.

The second time was my main modded server, which neither me or my friend has had any problems with until today when it started saying the authentication servers were down. As a troubleshooting step, I restarted the server, but the error still appeared. My friend mentioned that he was able to connect with no issues to my private vanilla server (hosted on the same machine as my modded server) which suggested to me this could be an issue with Forge. This also reminded me of the ATM8 server issue.

So I searched Google for "Forge 1.20.1 unable to authenticate" and found this forum post. Noticed that someone suggested disabling IPv6 in the network adapter settings worked for them. I then proceeded to disable IPv6 on my server's Ethernet adapter (and also wondered why the WIFI adapter was enabled since I've previously disabled that TWICE), and without even needing to restart the dedicated server or the machine itself, I was able to successfully connect with my main computer (which is on the same local network).

In short, disabling IPv6 in the network adapter settings fixed the issue.

FinnT730 Tree Puncher

FinnT730

Posted
Posted

@Peekofwar It might be that you just need to close the game, and log out of the launcher and then back in again. Might be very well that the Microsoft Servers could not verify you on time, and you got that message.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing

Announcements



  • Recently Browsing

    • No registered users viewing this page.

  • Posts

    • RRS
      regarding Invalid player data

      By RRS · Posted

      My apologies, it's a Postscript. I was able to play for an extended period of time right after generating the world without any problems. If I close it and reopen it, I get that message at random. Once it appears, I have to modify the Level.dat to open it.
    • Ugdhar
      How can i add Citadel to my mod so i can manipulate the tickspeed of entities?

      By Ugdhar · Posted

      Share logs/errors, and someone may know how to help. Make sure to read the FAQ on sharing logs.
    • RRS
      regarding Invalid player data

      By RRS · Posted

      Hello.  regarding Invalid player data.  First of all, my English is not good, so there might be mistakes. I am using Minecraft 1.20.1 forge 47.3.22 CurseForge and have over 250 mods in my modpack.　Single-player. I can play the game after generating the world (about 5 hours) and restarting it, but there is no set timing and one day it suddenly shows ''Invalid player data''. Restarted the game several times after that, but the same message appears. Fix the level.dat file and play for a few hours, but the next day when I try to open the world I get the ''Invalid player data'' message again. Can open other worlds, but after some progress in the other worlds, the same message appears and I can't start them. Is there something wrong with the mod configuration? I would be very grateful if you could tell me how to solve this problem. ◉ErrorCode https://mclo.gs/4gcfPbY   ◉ModList AdvancementPlaques-forge-1.6.9.jar AI-Improvements-1.20-0.5.2.jar alexsmobs-1.22.9.jar alternate_current-mc1.20-1.7.0.jar AmbientSounds_FORGE_v6.1.6_mc1.20.1.jar amendments-1.20-1.2.18.jar Apotheosis-1.20.1-7.4.6.jar ApothicAttributes-1.20.1-1.3.7.jar appleskin-forge-mc1.20.1-2.5.1.jar aquamirae-6.API15.jar architectury-9.2.14-forge.jar ars_elemental-1.20.1-0.6.7.7.jar ars_extended_glyphs-1.20.1-1.9.jar ars_nouveau-1.20.1-4.12.6-all.jar AttributeFix-Forge-1.20.1-21.0.4.jar azurelib-neo-1.20.1-2.0.41.jar BadOptimizations-2.2.1-1.20.1.jar balm-forge-1.20.1-7.3.16-all.jar barbequesdelight-1.0.5.jar BattleArts-20.9.7.1.jar BattleArtsAPI-20.9.5.3.jar BEB-Forge-1.20.1-2.0.0.jar bendy-lib-forge-4.0.0.jar betterendcities-1.0.0-1.20.1.jar betterfpsdist-1.20.1-6.0.jar BetterThirdPerson-Forge-1.20-1.9.0.jar bettervillage-forge-1.20.1-3.2.0.jar biggerendcities-1.20.1-1.0.0.jar blockui-1.20.1-1.0.156-RELEASE.jar blueprint-1.20.1-7.1.1.jar blur-forge-3.1.1.jar BOMD-Forge-1.20.1-1.1.1.jar Bookshelf-Forge-1.20.1-20.2.13.jar BrewinAndChewin-1.20.1-3.1.2.jar BridgingMod-2.5.1+1.20.1.forge-release.jar caelus-forge-3.2.0+1.20.1.jar CarbonConfig-1.20-1.2.6.jar Cardiac-FORGE-0.5.3.2+1.20.1.jar carryon-forge-1.20.1-2.1.2.7.jar casualness_delight-1.20.1-0.4n.jar CerbonsApi-Forge-1.20.1-1.0.0.jar chat_heads-0.13.13-forge-1.20.jar cherishedworlds-forge-6.1.7+1.20.1.jar ChoiceTheorem's Overhauled Village-3.4.11.jar Chunk-Pregenerator-1.20-4.4.4.jar citadel-2.6.1-1.20.1.jar clean_tooltips-1.0-forge-1.20.1.jar cloth-config-11.1.136-forge.jar Clumps-forge-1.20.1-12.0.0.4.jar cobweb-forge-1.20.1-1.0.1.jar CocoaInput-1.20.5-fabric-4.4.1-EXPERIMENTAL.jar collective-1.20.1-7.91.jar cosmeticarmorreworked-1.20.1-v1a.jar create-1.20.1-0.5.1.j.jar create_easy_structures-0.1.2-forge-1.20.1.jar CreativeCore_FORGE_v2.12.31_mc1.20.1.jar creeperoverhaul-3.0.2-forge.jar cristellib-1.1.6-forge.jar cuisinedelight-1.1.16.jar cupboard-1.20.1-2.7.jar curios-forge-5.11.1+1.20.1.jar CutAllSMP_v2.5.2.jar default_skill_trees-1.1.jar DisenchantmentEditTable-1.20-1.1.2.jar DistantHorizons-2.2.1-a-1.20.1-forge-fabric.jar domesticationinnovation-1.7.1-1.20.1.jar domum_ornamentum-1.20.1-1.0.186-RELEASE-universal.jar dragonitegear-0.3.2.jar Dungeon Crawl-1.20.1-2.3.15.jar dungeons-and-taverns-ancient-city-overhaul-1 [Forge].jar DungeonsArise-1.20.x-2.1.58-release.jar dungeons_enhanced-1.20.1-5.3.0.jar dungeons_plus-1.20.1-1.5.0.jar ec_isasb_plugin-1.20.1-1.0.0-all.jar efiscompat-2.2.4.jar EFMCompat 20.2.0.1.jar embeddium-0.3.31+mc1.20.1.jar EnchantmentDescriptions-Forge-1.20.1-17.1.19.jar endermanoverhaul-forge-1.20.1-1.0.4.jar EnderWyrmlings-1.0.0-forge-1.20.1.jar endrem_forge-5.3.3-R-1.20.1.jar enhanced_boss_bars-1.20.1-1.0.0.jar entityculling-forge-1.7.2-mc1.20.1.jar entity_model_features_forge_1.20.1-2.4.1.jar entity_texture_features_forge_1.20.1-6.2.9.jar Epic-Knights-9.21.jar Epic-Knights-Addon-1.22.jar Epic-Knights-Slavic-Armory-1.5.jar epicfight-forge-20.9.7-1.20.1.jar essential_1-3-5-7_forge_1-20-1.jar ExCap-20.9.7.3.jar exoticbirds-1.20.1-1.0.0.jar expanded_combat-1.20.1-3.2.4-all.jar Explorify v1.6.2 f10-48.jar extrasounds-1.20.1-forge-1.3.jar falchionmoveset-20.8.2.jar Fallingleaves-1.20.1-2.1.0.jar FarmersDelight-1.20.1-1.2.7.jar farsight-1.20.1-3.7.jar FastFurnace-1.20.1-8.0.2.jar FastSuite-1.20.1-5.0.1.jar FastWorkbench-1.20.1-8.0.4.jar ferritecore-6.0.1-forge.jar forge-medievalend-1.0.1.jar framework-forge-1.20.1-0.7.12.jar frozen_zombie_castle-1.4.0-forge-1.20.1.jar fzzy_config-0.6.4+1.20.1+forge.jar geckolib-forge-1.20.1-4.7.jar globalxp-forge-1.20.1-1.12.jar goblintraders-forge-1.20.1-1.9.3.jar gravestone-forge-1.20.1-1.0.24.jar guardvillagers-1.20.1-1.6.10.jar harvest-with-ease-forge-1.20.1-9.4.0.jar Highlighter-1.20.1-forge-1.1.9.jar hole_filler_mod-1.2.8_mc-1.20.1_forge.jar Iceberg-1.20.1-forge-1.1.25.jar ImmediatelyFast-Forge-1.3.4+1.20.4.jar ImmersiveUI-FORGE-0.3.0.jar imst-2.1.0.jar infernalmobs-1.20.1.6.jar integrated_api-1.5.1+1.20.1-forge.jar integrated_villages-1.1.5+1.20.1-forge.jar inventoryhud.forge.1.20.1-3.4.26.jar InventoryProfilesNext-forge-1.20-1.10.14.jar inventorysorter-1.20.1-23.0.8.jar InventorySpam-1.20.1-1.5.6.jar ironchest-1.20.1-14.4.4.jar irons_spellbooks-1.20.1-3.4.0.7.jar iron_repair_kits-2.4.3-forge-1.20.1.jar ItemBorders-1.20.1-forge-1.2.2.jar ItemProductionLib-1.20.1-1.0.2a-all.jar Jade-1.20.1-Forge-11.12.3.jar jei-1.20.1-forge-15.20.0.106.jar journeymap-1.20.1-5.10.3-forge.jar justhammers-forge-2.0.3+mc1.20.1.jar Kobolds-2.12.0.jar kotlinforforge-4.11.0-all.jar LegendaryTooltips-1.20.1-forge-1.4.5.jar libIPN-forge-1.20-4.0.2.jar libraryferret-forge-1.20.1-4.0.0.jar lionfishapi-2.4-Fix.jar lithostitched-forge-1.20.1-1.4.4.jar lmft-1.0.4+1.20.1-forge.jar lootbeams-1.20.1-1.2.6.jar lootintegrations-1.20.1-4.0.jar lukis-grand-capitals-1.1.1.jar L_Enders_Cataclysm-2.54- 1.20.1.jar mes-1.3.4-1.20-forge.jar mexicans_delight-1.1.1-forge-1.20.1.jar MineAllSMP_v2.6.6.jar minecolonies-1.20.1-1.1.814-snapshot.jar mna-forge-1.20.1-3.1.0.4-all.jar modernfix-forge-5.20.2+mc1.20.1.jar ModernUI-Forge-1.20.1-3.11.1.6-universal.jar modlist.txt moonlight-1.20-2.13.65-forge.jar mowziesmobs-1.7.0.jar multipiston-1.20-1.2.43-RELEASE.jar MutantMonsters-v8.0.7-1.20.1-Forge.jar mutil-1.20.1-6.1.1.jar mvs-4.1.4-1.20-forge.jar NaturesCompass-1.20.1-1.11.2-forge.jar Neat-1.20.1-41-FORGE.jar netherportalfix-forge-1.20-13.0.1.jar notenoughanimations-forge-1.9.2-mc1.20.1.jar Obscure-Tooltips-2.2.jar obscure_api-15.jar OctoLib-FORGE-0.4.2+1.20.1.jar oculus-mc1.20.1-1.8.0.jar packetfixer-forge-2.0.0-1.19-to-1.20.1.jar PackingTape-1.20.1-0.14.3.jar PassiveSkillTree-1.20.1-BETA-0.6.14a-all.jar Patchouli-1.20.1-84.1-FORGE.jar phantasm-1.0.1.jar Placebo-1.20.1-8.6.2.jar player-animation-lib-forge-1.0.2-rc1+1.20.jar polymorph-forge-0.49.8+1.20.1.jar Prism-1.20.1-forge-1.0.5.jar projectvibrantjourneys-1.20.1-6.0.5.jar puffish_attributes-0.7.2-1.20-forge.jar puffish_skills-0.14.7-1.20-forge.jar PuzzlesLib-v8.1.25-1.20.1-Forge.jar QualityCrops-1.20.1-1.3.3.jar QualitysDelight-1.20.1-1.5.3.jar Quark-4.0-460.jar QUILT-2.0.0.jar repair_amulet-2.0-forge-1.20.1.jar repurposed_structures-7.1.15+1.20.1-forge.jar resourcefulconfig-forge-1.20.1-2.1.2.jar resourcefullib-forge-1.20.1-2.1.29.jar RPG-HUD-3.10.jar rpg_companions_tiny_dragons-0.0.4-forge-1.20.1.jar run.bat samurai_dynasty-0.0.48-1.20.1-neo.jar simplyswords-forge-1.56.0-1.20.1.jar SkyVillages-1.0.4-1.19.2-1.20.1-forge-release.jar smoothboot(reloaded)-mc1.20.1-0.0.4.jar sophisticatedbackpacks-1.20.1-3.23.5.1200.jar sophisticatedcore-1.20.1-1.2.12.872.jar sound-physics-remastered-forge-1.20.1-1.4.8.jar Stackable Potions-forge-1.20.1-1.0.0.jar StorageBox_v3.2.5.jar StorageDrawers-1.20.1-12.9.13.jar Structory_1.20.x_v1.3.5.jar Structory_Towers_1.20.x_v1.0.7.jar structure_gel-1.20.1-2.16.2.jar structurize-1.20.1-1.0.764-snapshot.jar SubtleEffects-forge-1.20.1-1.8.0.jar supermartijn642configlib-1.1.8-forge-mc1.20.jar supermartijn642corelib-1.1.18-forge-mc1.20.1.jar supplementaries-1.20-3.1.13.jar TaxCastlePillager+M.1.20.1+ForM.1.0.1.jar TaxTreeGiant+M.1.20.1+ForM.1.1.0.jar TerraBlender-forge-1.20.1-3.0.1.7.jar Terralith_1.20.x_v2.5.4.jar tetra-1.20.1-6.8.0.jar TheOuterEnd-1.0.10.jar tidal-towns-1.3.4.jar tlc_forge-1.0.3-R-1.20.X.jar toms_storage-1.20-1.7.0.jar toomanyglyphs-1.20.1-2.3.2.12345.jar totw_additions-1.3.1-1.20.x-forge.jar totw_modded-forge-1.20.1-1.0.5.jar Towns-and-Towers-1.12-Fabric+Forge.jar towntalk-1.20.1-1.1.0.jar trashcans-1.0.18b-forge-mc1.20.jar trashslot-forge-1.20-15.1.1.jar travelersbackpack-forge-1.20.1-9.1.16.jar TravelersTitles-1.20-Forge-4.0.2.jar tru.e-ending-v1.1.0c.jar uncrafter-forge-1.20.1-1.2.0.jar valarian_conquest-3.0-forge-1.20.1.jar valhelsia_core-forge-1.20.1-1.1.2.jar valhelsia_structures-forge-1.20.1-1.1.2.jar villagernames-1.20.1-8.2.jar visuality-forge-2.0.2.jar waystones-forge-1.20.1-14.1.9.jar WeaponsOfMiracles-20.1.8.5.6.jar XP From Harvest Reworked-1.20.x-1.2.4.jar YetAnotherConfigLib-3.6.2+1.20.1-forge.jar YungsApi-1.20-Forge-4.0.6.jar YungsBetterDesertTemples-1.20-Forge-3.0.3.jar YungsBetterDungeons-1.20-Forge-4.0.4.jar YungsBetterEndIsland-1.20-Forge-2.0.6.jar YungsBetterJungleTemples-1.20-Forge-2.0.5.jar YungsBetterMineshafts-1.20-Forge-4.0.4.jar YungsBetterNetherFortresses-1.20-Forge-2.0.6.jar YungsBetterOceanMonuments-1.20-Forge-3.0.4.jar YungsBetterWitchHuts-1.20-Forge-3.0.3.jar YungsBridges-1.20-Forge-4.0.3.jar YungsCaveBiomes-1.20.1-Forge-2.0.1.jar YungsExtras-1.20-Forge-4.0.3.jar Zeta-1.0-24.jar  
    • Nazreth
      How can i add Citadel to my mod so i can manipulate the tickspeed of entities?

      By Nazreth · Posted

      I did exactly like in the instruction , i even copied the build.gradle from alex mobs like he told in the instruction for citadel 1.7.0 and above, and i got 100 different error no matter what i changed in the build.gradle, i once managed to make a build succesfull but then the run client wasnt working I did exactly like in the instruction , i even copied the build.gradle from alex mobs like he told in the instruction for citadel 1.7.0 and above, and i got 100 different error no matter what i changed in the build.gradle, i once managed to make a build succesfull but then the run client wasnt working
    • Paint_Ninja
      Modpack isn't launching

      By Paint_Ninja · Posted

      Please share a link to your crash report on https://paste.ee, as explained in the FAQ

  • Topics

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.

  I accept