We don't have anything that asks for a password. Maybe your PC software does. Try this client.
https://drive.google.com/file/d/1bNEWn8_XECO_kW1Xdp5aPSlRMuvv-8jY/view?usp=sharing
Are you using our full client? Try this one. Are you using an interface?
https://drive.google.com/file/d/1bNEWn8_XECO_kW1Xdp5aPSlRMuvv-8jY/view?usp=sharing
Epic Raidboss Core has been lvled up to 80. The droplist has been upgraded to what players would expect from a lvl 80 RB.
You will also have a 50% chance to lvl up stage 16 and 17 soul crystals to stage 18.
I don't see any problems like that. if you are using an interface I suggest deleting your client and start over with a clean client.
We have this alternative client plus a small hat patch.
Alternative Client Download | L2Axis - Community
New Hat Patch | L2Axis - Community
I can't think of why you would need to open ports. maybe you can try adding a rule for the .exe in the firewall.
https://supportcenter.lexisnexis.com/app/answers/answer_view/a_id/1081611/~/adding-exceptions-to-the-windows-firewall
Talk to NPC Saxon in Giran to enter the New Melon Madness Instance.
This is a fairly easy and rewarding Instance.
You will earn a lot of Nectar, Gold, Silver and Bronze coins.
Talk to Buzz the Cat NPC in Giran to learn all about Nectar.
Not sure what caused the crash. But I think it was a conflict with the Team PvP event. Castle siege and the event started at the exact same time then the server crashed.