BFV: server terminates session at exactly 5 min while client still sends
Hello,
Every multiplayer match ends after roughly 3-5 minutes with
"Connection to the EA servers has been lost", and I am returned to the
main menu. Neither bfv.exe nor the anti-cheat process crashes.
Rejoining from inside the game drops even faster (1-2 minutes).
This reproduces 100% of the time.
I captured the traffic with Windows' built-in pktmon (no third-party
tools) to find out where it actually breaks.
--- Capture details ---
Capture window : 2026-10-11 23:46:11 - 23:55:17
Game server : 5.60.131.225:15443 <-> 192.168.5.46:19214 (UDP)
Session window : 23:50:11.546 - 23:55:12.668
= exactly 5 min 01 s
--- Last 2 seconds, per-50ms packet counters ---
offset client -> server server -> client
+1750 ms 7 8
+1800 ms 7 8
+1850 ms 7 5
+1900 ms 7 0 <-- server stops first
+1950 ms 7 3 <-- client still sending
--- What this shows ---
1. The client's upload stream is steady right up to the final packet:
no loss, no gaps, no silence period. Local network, router, ONT,
ISP and Wi-Fi are all ruled out.
2. There is no silence period before the drop, so a NAT mapping
timeout is ruled out.
3. The server stopped responding first; the client kept sending for
about 100 ms afterwards. This is a server-initiated session
termination, not a client-side or network-side failure.
4. The session length is exactly 5 min 01 s, which looks like a timer
rather than a random failure.
--- Already ruled out (each tested separately, no effect) ---
- Different networks: home Wi-Fi and a phone 4G hotspot, identical result
- Antivirus uninstalled
- WinRing0 kernel driver stopped
- Memory Integrity (HVCI) disabled
- Winsock and TCP/IP stack reset
- EA App reinstalled
- All third-party network filter drivers stopped
--- Environment ---
OS : Windows 11 (Build 26100)
Anti-cheat : EAAntiCheatInstaller 1.0.15918775 (EA Javelin)
Game ver : v-1.0.78.11385
Region : Hong Kong (store currency HKD)
I could play normally about six months ago. The problem appeared after
Battlefield V switched to the EA Javelin anti-cheat.
Attached: the last 30 seconds of the capture, sanitized (all MAC
addresses removed, only the game server flow kept). Full capture
available on request. Suggested Wireshark filter: udp.port == 15443
Any help would be appreciated. If this is anti-cheat related, please
forward it to the anti-cheat team.
