Persistent "Taking longer than expected" in Agent across multiple models

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

I primarily use Grok 4.6, and the Agent frequently gets stuck on “Taking longer than expected.”

Reloading Cursor does not reliably fix the issue. Sometimes the conversation eventually continues after waiting or retrying, but responses remain extremely slow. In one case, a single working session took around 3 hours because of repeated delays.

I also tested other models, but the same issue still occurs.

Network Diagnostics currently passes all checks, including Chat and Agent, but the actual Agent experience remains very slow and frequently gets stuck.

At this point, the issue is significantly disrupting my work and making Cursor difficult to use.

Steps to Reproduce

Open Cursor IDE.
Start a new Agent chat.
Send a normal prompt or coding request.
The Agent frequently gets stuck on “Taking longer than expected.”
Reload Cursor and try again.
The issue often persists.
Switch to another model and retry.
The same behavior can still occur.

Screenshots / Screen Recordings

Operating System

Windows 10/11
MacOS

Version Information

Cursor IDE : 3.20.17

For AI issues: which model did you use?

Primarily Cursor Grok 4.6.
I also tested other models, but the same issue occurred.

Cursor Grok 4.6, 4.5
Sonnet 4.6
GPT-5.6 sol

For AI issues: add Request ID with privacy disabled

465c7bb2-b49c-4e7f-9e7a-3f76b20eb04d

Additional Information

I use both window and mac.
I don’t use both devices at the same time, but I had trouble with this issue on both devices.

Does this stop you from using Cursor

No - Cursor works, but with this issue

I use windows i am facing this very often in recent times