ACE COMBAT 8 ST-3101004: connection lost after a mission
Error ST-3101004 ("connection lost") appears at the end of a Co-Op Assault mission in ACE COMBAT ONLINE, before the results screen, so you get no rewards and are sent back to the title screen.
Also appears as: ST-3101004, ST3101004, connection lost ace combat 8, can't proceed to results screen, no results screen ace combat online, disconnected at end of mission ace combat 8, UN-400
Several players in a Steam thread on September 28 reported being disconnected at the end of Co-Op Assault missions with no reward, and one saw UN-400 when trying to reconnect. The official @AceCombatGames account on X later posted that it had completed its response to a situation where some players could not reach the Results screen after a mission.
The X post's wording does not name this code, so tying the two together is our inference. Nothing for you to fix locally.
No problems reported in the last 15 minutes.
Is ACE COMBAT 8: Wings of Theve down right now? Live reports →What to try
- 01Reported
Nothing to fix on your side
Reporters said it happened at the end of missions with no reward; nobody described a local fix. See the status page (/ace-combat-8/) for the latest.
- 02Reported
Check the official X notices and Steam news for the resolution
The official @AceCombatGames account posted that the response to the Results-screen situation was complete, and that a maintenance to clear penalty status for affected players had finished. Search the account for "ACE COMBAT ONLINE" notices if you were penalised.
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What people are saying
Notes from players who've hit this one — no time limit, an answer from months ago is still an answer.
- Nothing reported here yet.
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