[Windows] Reconnecting 5/5 and severe slowdown with 4 concurrent Luna Max tasks

Hi Codex team,

Starting today, Codex on Windows has become extremely slow. I normally run four project tasks concurrently, mostly using GPT-5.6 Luna with Max reasoning.

This workflow worked normally before, but now the tasks frequently stall, remain in “Thinking” for a long time, and display “Reconnecting 5/5.”

Expected behavior

I need four project tasks to run concurrently and complete reliably. Reducing the number of concurrent tasks is only a temporary workaround and does not fit my normal workflow.

Actual behavior

• Frequent “Reconnecting 5/5”
• Tasks remain in “Thinking” for a long time
• Projects take much longer than they did previously
• The issue repeatedly occurs when several tasks are active

Environment

• Windows Codex desktop app
• App version: 26.803.10989.0
• Model: mostly GPT-5.6 Luna
• Reasoning level: Max
• Concurrent workload: 4 project tasks

Request

Could you please investigate whether this is a client or concurrency regression?

Because the stalled and reconnecting runs have consumed usage without completing normally, I would also really appreciate a usage reset if possible.

Thank you, for your help. I really appreciate it, and thank you to the entire Codex team for looking into this.

This is my account name :@euanchow

My Codex account ID is:2730facb-2f37-44db-aec9-69a63161767f

And can you give me a reset? Thank you !!!!

Start by reproducing the report in the Windows Codex desktop app version 26.803.10989.0 with four concurrent GPT-5.6 Luna tasks at Max reasoning. Observe the “Reconnecting 5/5” and prolonged “Thinking” behavior, then determine whether the regression is client-side or concurrency-related. Done means the four-task workflow completes reliably without the reported stalls or severe slowdown.