Happened to my JE today, going from Saturn to Akeron. It is not a crash, it is a hang at the gate (client display galactic map), and I had to kill and restart the client. After I restarted, I had like less than 1 sec (not enough to cloak) before the mobs at the gate killed me, so I took 3K EXP debt :-(
I believe this is a timing mismatch in the gate/undocking handshake. The server have received and processed the request to gate/undock, (because upon respawning, I am at tne new sector), but the server probably sent the ACK too soon, so the client is still waiting for an ACK from the server for it to load the new sector info (because it is busy displaying the animation of end-of-warp and gating). I know that we cannot change the client codes much, but I believe this can be fixed if the server codes that handle gating/undocking would just re-send the "new-sector-ACK" several times for, say, 2 secs until it receives a response from the client, and this should fix it.
my ping to the server is around 120ms from tracert, if that could help.
I know it is easier said than done :-)