Patch 6609 — client connects and gets seed, but never sends login packet (custom account server)
Hi all,
Working on a custom account server for patch 6609 (client shows "Conquer 3.0" on the splash screen) and I've hit a wall I can't seem to diagnose further with network capture alone. Hoping someone who's done this exact patch has run into this.
Setup:
Client is Conquer.exe DX8, patched with cyano's RSA tool — extracted the original public key, generated my own keypair, patched the binary, re-encrypted Server.dat with a single custom server entry pointing at my own account server (verified the round-trip decrypts correctly, and the entry does show up and is selectable in-game).
My account server is a from-scratch implementation (not based on any existing emulator). It correctly speaks the standard cipher (0x9D/0x62 substitution tables, XOR 0xAB, nibble swap) and sends MsgEncryptCode (1059, 8 bytes, seed) immediately on connect — verified byte-for-byte correct against a hand-rolled test client that successfully round-trips a full login using this exact cipher/framing.
What I'm seeing:
Client connects to my server on Log In, receives the seed packet, and then either (a) disconnects immediately without sending anything back, or (b) doesn't even attempt a connection at all (inconsistent between attempts, same account/password, same server entry, fresh client relaunch each time).
Confirmed via raw byte logging on my server: literally zero bytes are ever received back after the seed packet on the connections that do occur.
Ruled out: Server.dat tree structure (mirrors the original decrypted list's root→category→leaf shape), IP format (primary#backup vs bare IP), IP address type (loopback vs a real-looking public-range IP), and the FlashIcon field being empty vs a real asset path — none of these changed the behavior.
My question:
I haven't found a custom loader that worked for me yet, I've been kinda banging my head against the keyboard for a couple of days getting the same error. but at this point I really need any help I can get. so please if someone knows what can be done here let me know, thank you!
