AI AI Tools Guidebook
Troubleshooting

Gemini Not Responding — Quick Triage

Gemini spins forever or returns nothing? Account, region, network, and Workspace gating are the usual suspects.

Published: Author: AI Productivity Guide Team 🌐 查看中文版本

Submitting a prompt to Gemini leaves the spinner running or returns an empty card — almost always a network or account problem, not a broken model. Gemini streams responses over SSE; anything that breaks the long-lived connection (corporate proxy, ad blocker, Workspace policy, regional gating) hangs the UI.

To diagnose fast, work through “account → region → network → browser” in that order.

Symptoms

  • Spinner stays after submit
  • Empty reply card
  • Phone works, laptop browser doesn’t
  • Same laptop: incognito works, main profile doesn’t

Common causes

By frequency:

1. Corporate proxy / firewall blocks Google AI endpoints (most common)

Office / school networks often block *.googleapis.com or kill long-lived SSE. Gemini streams responses; killed connection → blank reply.

How to judge:

  • Works on phone hotspot, broken on office WiFi = this
  • DevTools → Network → SSE shows (canceled) / (pending)

2. Browser extension breaks streaming

uBlock / Privacy Badger / antitracking extensions can terminate SSE.

How to judge: incognito (no extensions) works, main profile doesn’t.

3. Workspace account AI disabled

Work-account IT disabled Gemini; the UI may show “feature unavailable” or just be blank.

How to judge:

  • Personal account works, work doesn’t
  • Yellow banner: “managed by your organization”

4. Regional gating

Gemini rolled out per region; Russia / Iran / North Korea blocked.

How to judge: VPN to US works = regional.

5. Account flagged for suspicious activity

Recent device / IP / country changes → temporary lock.

How to judge: “Security alert” at accounts.google.com.

6. Backend outage (rare)

Google service is actually down.

How to judge: status.cloud.google.com — check Vertex AI / Generative Language API status.

7. Prompt silently hits safety filter

Some sensitive prompts trigger the filter without showing an error — looks like no response.

How to judge: an innocuous prompt (“what’s the weather today”) works fine.

Shortest path to fix

Ordered by how fast each test verifies:

Step 1: Switch network (phone hotspot)

Disconnect office WiFi
Enable phone hotspot
Connect laptop to hotspot
Open gemini.google.com
Retry

Works = office network is blocking. IT needs to whitelist:

  • gemini.google.com
  • *.googleapis.com
  • aistudio.google.com
  • *.googleusercontent.com

Step 2: Different browser / Incognito

Chrome Incognito (no extensions)
gemini.google.com → sign in
Retry

Works = main-profile extension is blocking. Re-enable one at a time to identify. Common offenders:

  • uBlock Origin
  • Privacy Badger
  • AdGuard
  • Ghostery
  • DuckDuckGo Privacy Essentials

Step 3: Different account

gemini.google.com → avatar → switch to another Google account (personal / student / other)
Retry

Personal works, work doesn’t = Workspace policy. IT enables:

Admin Console → Apps → Additional Google services → Gemini app for Workspace → ON

Step 4: Different region

VPN to US/UK and test. Works = regional gating; permanently switch for long-term fix.

Step 5: Check Google service status

status.cloud.google.com
Look for "Vertex AI" / "Generative Language API"
Green = OK; red / yellow = wait for fix

Step 6: Innocuous prompt to test safety filter

Ask Gemini "what's the weather today"
Works → previous prompt hit safety filter
Doesn't → not a prompt issue

Step 7: Clear browser cookies + cache

Chrome → Settings → Privacy → Clear browsing data
Scope: [*.]google.com
Restart browser, sign back in

Step 8: API users — switch to API

If Web UI keeps failing, call the API directly:

from google import genai
client = genai.Client(api_key="YOUR_KEY")
response = client.models.generate_content(
    model="gemini-2.5-pro",
    contents="hello"
)

API bypasses the Web UI’s blocking chains.

When this is not on you

  • Workspace-managed accounts have AI policy gated by IT; you can’t self-enable
  • Regional gating is a Google rollout you can’t bypass (VPN is a workaround)
  • Backend outages — only wait

Prevention

  • Know which Google account is “personal” vs “managed”; use personal for AI work
  • Bookmark status.cloud.google.com for quick checks
  • Maintain a clean Chrome profile for AI without ad blockers
  • On office networks, try aistudio.google.com; often more reliable than gemini.google.com
  • API users: keep a fallback path — switch to API when Web UI is flaky

Tags: #Gemini #Debug #Troubleshooting

Related Articles