[Bug]: Friend cannot connect to LAN server java.lang.indexoutofboundsexception

[Detrua]

Mod

FTB Teams

Mod version

ftb-teams-forge-1902.2.9-build.61

Forge / Fabric version

1.19.2-forge-43.1.25

Modpack & version

No response

What issue are you having?

When my friends tries to join through LAN he get: java.lang.indexoutofboundsexception

Crashlogs

debug.log
latest.log

Steps to reproduce

1. Starting Singleplayer
2. Join Map
3. Open for LAN
4. Friend tries to join
5. Error exception: java.lang.indexoutofboundsexception

Anything else to note?

No response

[MichaelHillcox]

Full crash log please

[Detrua]

Full crash log please

debug.log
latest.log

crash-report folder is empty.
i hope this helps aswell

[Raidobw2]

It appears the log you posted shows that this person (you/your friend, whoever this log is from) is trying to connect to your server using ipv6.
I've not seen this before though maybe it can work, however can you have this person verify in their network adapters if unchecking ipv6 fixes this?
Ethernet and Wifi can be verified, press Windows + R and put ncpa.cpl in the box then Ok, make sure to uncheck that box after right clicking the adapters to access its properties:

[Detrua]

It appears the log you posted shows that this person (you/your friend, whoever this log is from) is trying to connect to your server using ipv6. I've not seen this before though maybe it can work, however can you have this person verify in their network adapters if unchecking ipv6 fixes this? Ethernet and Wifi can be verified, press Windows + R and put ncpa.cpl in the box then Ok, make sure to uncheck that box after right clicking the adapters to access its properties:

Still don't work. Same exception. What we tried so far:

• ipv6 connection (default)
• ipv4 direct connect / server listing

From the Internet:

• Changing render distance

Some more information:

• We are connected through RJ45 with the Modem
• FTB library / Architectury API works fine

[Raidobw2]

I see, I'm unsure what's causing this then. If you think it's FTB Teams I'll label it as such for our mod developer to check the networking when he has time.

You can try connecting with ipv4 and changing who's the host as well. If you hosted the last times, maybe your friend can host then.
If you have both logs from computer 1 and computer 2, identified properly please (one for the host and the other for the guest connecting), that might give us more information. Right now I've not seen this issue elsewhere...

[jan-akesi]

having the same problem
my logs(host)
latest.log
debug.log
friend's
latest.log
debug.log

[jan-akesi]

same problem on the latest update
my logs(host)
debug.log
latest.log
friend's
debug (2).log
latest (2).log