BatChat Connection Failed — 5 Proven Fixes | BatChatHub

TL;DR

BatChat connection failed errors (蝙蝠聊天无法连接) almost always trace back to one of five causes: local network issues, firewall or antivirus blocking, VPN/proxy interference, DNS resolution failures, or BatChat server maintenance. The fastest fix order: check your internet connection first, disable VPN temporarily, whitelist BatChat in your firewall, switch DNS to 8.8.8.8, and check the official site or WeChat account for maintenance notices. This guide walks through each cause with platform-specific steps for Windows, macOS, iOS, and Android.

Why BatChat Shows “Connection Failed”

When BatChat displays a connection error, the app cannot establish a stable TCP connection to BatChat’s relay servers. Unlike a simple website timeout, an encrypted messenger relies on persistent WebSocket or long-polling connections to deliver messages in real time. If any link in the chain breaks, the app shows a connection failure (连接失败).

The five most common causes, ordered by frequency:

1. Local network problems — your device has no internet or an unstable connection
2. Firewall or antivirus blocking — security software intercepts or drops BatChat’s traffic
3. VPN or proxy interference — the encrypted tunnel reroutes traffic in ways BatChat’s servers don’t expect
4. DNS resolution failures — your device cannot translate batchat.com’s domain to an IP address
5. Server-side issues — BatChat’s infrastructure is under maintenance or experiencing an outage

Quick Diagnosis Table

Symptom	Most Likely Cause	First Action
All internet apps fail	Local network problem	Check Wi-Fi/cellular data
Only BatChat fails, everything else works	Firewall blocking or VPN issue	Disable VPN, check firewall
Works on cellular but not Wi-Fi	DNS or router-level blocking	Switch to cellular data temporarily
Intermittent disconnections every few minutes	Unstable connection or aggressive firewall	Check signal strength, firewall logs
Fails on all devices simultaneously	Server maintenance or outage	Check batchat.com official channels

Fix 1: Check Your Network Connection

This sounds obvious, but start here. Many connection errors resolve with basic network troubleshooting.

Step 1: Verify other apps and websites load normally. Open a browser and visit any website. If nothing loads, the problem is your internet, not BatChat.

Step 2: If you’re on Wi-Fi, toggle it off and on. On both iOS and Android, swipe into Control Center / Quick Settings and tap the Wi-Fi icon. Wait 10 seconds, then re-enable.

Step 3: If Wi-Fi remains unstable, switch to cellular data temporarily. Open a chat in BatChat — if messages load instantly on cellular, your Wi-Fi network or router is the bottleneck.

Step 4: Restart your router. Unplug it for 30 seconds, plug it back in, and wait 2 minutes for it to fully reconnect. This clears DNS caches, resets DHCP leases, and re-establishes connections with your ISP.

Step 5: On desktop (Windows or Mac), check your network adapter status. On Windows, press Win+R, type ncpa.cpl, and confirm the adapter shows “Connected.” On Mac, go to System Settings > Network and verify the green status dot.

When this fixes it: Most “BatChat connection failed” reports on the BatChat support channels trace back to a momentary Wi-Fi dropout or a router that needed a reboot.

Fix 2: Whitelist BatChat in Your Firewall and Antivirus

Firewalls and antivirus programs sometimes classify encrypted messaging traffic as suspicious. BatChat uses persistent encrypted connections that can trigger heuristic-based blocks, especially on corporate or school networks.

Windows

Step 1: Open Windows Defender Firewall. Press Win+R, type wf.msc, and press Enter.

Step 2: Click “Allow an app or feature through Windows Defender Firewall” in the left sidebar.

Step 3: Look for BatChat (蝙蝠聊天) in the list. If it appears and the checkbox is unchecked, check both Private and Public boxes.

Step 4: If BatChat doesn’t appear in the list, click “Change settings” > “Allow another app” > Browse. Navigate to BatChat’s installation directory (default: C:\Program Files\BatChat\ or C:\Users\[username]\AppData\Local\BatChat\) and select the main executable.

Step 5: If you use a third-party antivirus (Kaspersky, Bitdefender, Norton, 360 Security, etc.), open its settings and add BatChat to the exclusion or whitelist list. The exact location varies by product, but look for “Exclusions,” “Trusted applications,” or “Whitelist” under the protection or firewall settings.

macOS

Step 1: Open System Settings > Network > Firewall.

Step 2: Click “Options” and verify BatChat is set to “Allow incoming connections.”

Step 3: If you use a third-party firewall or antivirus on Mac (Little Snitch, LuLu, etc.), check that BatChat’s outgoing connections are permitted.

Mobile Devices (iOS/Android)

Mobile operating systems don’t have traditional firewalls. However:

• Enterprise or school devices may have Mobile Device Management (MDM) profiles that restrict certain apps. Check with your IT administrator.
• Android phones with built-in security suites (Huawei, Xiaomi, Samsung Knox) sometimes flag encrypted messaging traffic. Open the security app and check for blocked connections.
• iOS restrictions set through Screen Time or a configuration profile can block network access for specific apps. Go to Settings > Screen Time > Content & Privacy Restrictions > Allowed Apps and confirm BatChat is enabled.

Fix 3: Disable Your VPN or Proxy

VPNs and proxies are the most common cause of BatChat connection failures that affect only the messaging app while everything else works fine.

Why this happens: BatChat’s encrypted messaging protocol uses a persistent connection to specific server endpoints. When a VPN reroutes your traffic, the connection path changes, and sometimes the VPN server cannot maintain the persistent WebSocket connection. Some VPN protocols (especially older ones like PPTP) struggle with long-lived connections.

Step 1: Disconnect your VPN completely. Don’t just switch servers — disconnect it entirely.

Step 2: Force-close BatChat and reopen it. On iOS, swipe up from the bottom and swipe BatChat away. On Android, open Recent Apps and swipe it away.

Step 3: Check if the connection restores.

Step 4: If you need to use a VPN with BatChat, try switching the VPN protocol:

• WireGuard or IKEv2 handle persistent connections better than OpenVPN TCP or PPTP
• Some VPN apps let you split-tunnel, allowing BatChat to bypass the VPN while other traffic routes through it

Step 5: If you’re behind a corporate proxy (common in office environments), configure the proxy exception list to include *.batchat.com.

Proxy settings on desktop:

• Windows: Settings > Network & Internet > Proxy > Manual proxy setup > add batchat.com to the “Do not use the proxy server for addresses beginning with” field
• macOS: System Settings > Network > Proxies > Bypass proxy settings for these hosts and domains > add *.batchat.com

Fix 4: Fix DNS Resolution Problems

DNS (Domain Name System) translates domain names like batchat.com into IP addresses. If your DNS server cannot resolve BatChat’s domain, the app cannot connect even with perfect internet.

Step 1: Verify the DNS issue. Open a browser and visit batchat.com. If the site loads but BatChat still can’t connect, DNS is likely not the issue. If the site doesn’t load either, proceed.

Step 2: Switch to a reliable public DNS server. Google’s 8.8.8.8 and Cloudflare’s 1.1.1.1 are the most commonly recommended options.

On Android:

1. Settings > Network & Internet > Private DNS
2. Select “Private DNS provider hostname”
3. Enter dns.google and save

On iOS:

1. Settings > Wi-Fi
2. Tap the (i) icon next to your connected network
3. Tap “Configure DNS” > Manual
4. Delete existing servers and add 8.8.8.8 and 1.1.1.1

On Windows:

1. Press Win+R, type ncpa.cpl
2. Right-click your active adapter > Properties
3. Double-click “Internet Protocol Version 4 (TCP/IPv4)”
4. Select “Use the following DNS server addresses”
5. Enter 8.8.8.8 for Preferred and 1.1.1.1 for Alternate

On macOS:

1. System Settings > Network > your connection > Details > DNS
2. Remove existing servers and add 8.8.8.8 and 1.1.1.1

Step 3: Flush your DNS cache after changing servers.

• Windows: Open Command Prompt as Administrator, run ipconfig /flushdns
• macOS: Open Terminal, run sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder
• Android/iOS: Restart the device (no direct flush command available)

Fix 5: Check for Server Maintenance or Outages

BatChat’s servers occasionally undergo scheduled maintenance, and rare outages can affect all users simultaneously.

How to check:

1. Official website — Visit batchat.com. If the site displays a maintenance notice (维护公告), server-side work is in progress. Wait and retry later.

2. WeChat official account — Search for “蝙蝠密聊” (the official WeChat public account). BatChat posts maintenance schedules and outage notifications there.

3. Baijia Hao account — BatChat maintains an official presence on Baidu’s Baijia Hao (百家号) platform where updates are posted.

4. Ask other users — If other BatChat users you know are also experiencing the same issue simultaneously, it’s almost certainly a server-side problem.

5. Contact support directly — Email support@batchat.com or call 028-85189556 during business hours (Chengdu, China timezone, UTC+8).

During server maintenance: There is nothing you can do client-side to fix the connection. The app will restore automatically once maintenance completes. Scheduled maintenance typically lasts 1-4 hours and is usually announced in advance through the WeChat account.

Platform-Specific Troubleshooting

Windows PC

• Check Windows Firewall (Fix 2 above) — this is the most common cause on desktop
• Run as Administrator — right-click the BatChat shortcut and select “Run as administrator” to rule out permission issues
• Clear app cache — go to %AppData%\BatChat\ or the equivalent directory and delete the cache folder (your messages remain encrypted locally and are not affected)
• Reinstall — uninstall BatChat, download the latest version from batchat.com, and reinstall

macOS

• Check Gatekeeper — macOS sometimes blocks apps not from the App Store. If you see a security prompt, go to System Settings > Privacy & Security and click “Open Anyway”
• Network configuration — check that macOS isn’t routing all traffic through a proxy (System Settings > Network > Proxies)
• Reinstall from scratch — delete BatChat from Applications, empty the Trash, download fresh from batchat.com

iOS

• Check for app updates — open the App Store, search for “蝙蝠聊天,” and install any available update
• Offload and reload — Settings > General > iPhone Storage > BatChat > Offload App. Then tap “Reinstall App.” This clears the cache without deleting your account
• Reset network settings — Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. This clears all saved Wi-Fi passwords and VPN configurations
• Check Date & Time — ensure your phone’s clock is set to “Set Automatically.” Certificate validation fails if the device clock is off by more than a few minutes

Android

• Check for app updates — since the APK is downloaded from batchat.com (not Google Play), updates aren’t automatic. Visit batchat.com periodically and download the latest version. See our BatChat Android download guide for the full process.
• Clear cache and data — Settings > Apps > BatChat > Storage > Clear Cache (try this first). If that doesn’t work, Clear Data (this removes local chat history but doesn’t affect your account). Note that clearing data also removes local encryption keys, which can cause message decryption errors on previously received messages.
• Check battery optimization — Settings > Apps > BatChat > Battery > select “Unrestricted.” Aggressive battery optimization can kill BatChat’s background connection
• Reinstall — uninstall and download the latest APK from batchat.com

Prevention Tips

Once you’ve resolved the connection issue, these steps reduce the chance of it recurring:

1. Keep the app updated — newer versions include connection stability improvements
2. Use a stable Wi-Fi network — avoid public Wi-Fi with aggressive firewalls when possible
3. Whitelist BatChat in your security software — a one-time setup that prevents recurring blocks
4. Don’t use aggressive VPN protocols with BatChat — WireGuard or IKEv2 are preferred
5. Monitor the official WeChat account — “蝙蝠密聊” announces maintenance windows in advance

When to Contact BatChat Support

If you’ve tried all five fixes above and BatChat still cannot connect, reach out to BatChat’s support team:

• Email: support@batchat.com
• Phone: +86-28-85189556 (Chengdu, China, UTC+8 business hours)
• WeChat: Follow the official account “蝙蝠密聊” for announcements and support

When contacting support, include:

• Your device model and operating system version
• BatChat app version (find in Settings > About)
• A description of the error message or behavior
• Whether the issue occurs on Wi-Fi, cellular, or both
• Whether other users on the same network experience the same issue
• Screenshots of the error, if possible

Frequently Asked Questions

Why does BatChat say connection failed but my internet works fine?

This typically means a firewall, antivirus, VPN, or proxy is specifically blocking BatChat’s encrypted traffic while allowing standard HTTP/HTTPS. Other apps work because they use different connection patterns. Try Fix 2 (firewall) and Fix 3 (VPN) first.

Why does BatChat disconnect when I connect to my office Wi-Fi?

Corporate networks commonly run firewalls and content filters that block unrecognized encrypted connections. Ask your IT department to whitelist *.batchat.com. In the meantime, use cellular data or a personal hotspot.

How long does BatChat server maintenance usually last?

Scheduled maintenance typically lasts 1-4 hours. BatChat usually announces maintenance through the WeChat official account “蝙蝠密聊” in advance. Unscheduled outages are rare but resolved within a few hours.

Can I use BatChat behind a firewall without admin access?

If you don’t have administrator access to whitelist BatChat, your options are limited. You can try using cellular data, connecting through a personal hotspot, or asking your network administrator. BatChat’s web version (网页版) at batchat.com sometimes works when the desktop app is blocked, since it uses standard HTTPS.

Why does BatChat work on my phone but not my computer?

This indicates the issue is specific to your computer’s network configuration. Check your computer’s firewall settings, VPN status, and DNS configuration. The most common culprit is Windows Defender Firewall or a corporate proxy that doesn’t apply to your mobile device.

Does using a VPN with BatChat reduce security?

Using a reputable VPN doesn’t compromise BatChat’s end-to-end encryption. Your messages are encrypted on your device before they enter the VPN tunnel. However, a VPN adds an additional network hop that can cause connection instability. If you must use a VPN, choose one with WireGuard protocol and avoid free VPNs that inject ads or modify traffic.