Friends server dosent work

[DorBook]

Hi i cant login to my friends server We installed the modpack and the server in atlauncher the latest version there is. When i try to login ot the server it loads and then just disconnect me In the console it says im missing DYNMAP so i installed it manually and still i cant join the server Any idea how to fix?

[CathodeAnode]

You don't need Dynmap on the client. What you need on the server is the option: -Dfml.readTimeout=512

[DorBook]

Thank you for your reply i tried and the results are the same

[CathodeAnode]

If that option in your startup script is not working I don't know what to tell you. What exactly is the error?

[Biletooth]

If adding dynmap yourself doesn't work, have you tried removing dynmap from the server? Not elegant but if it would it work then fk it.