How to fix Error 707 on Windows 11

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Windows 11 Error 707: Partial Data Received

Why This Error Happens

Error 707 occurs when the network transport layer (typically involving RPC, named pipes, or TCP-based communication) delivers data to a client application in fragments rather than as a single complete transmission. This is often triggered by network congestion, MTU (Maximum Transmission Unit) mismatches between network devices, or a network driver that is not properly reassembling packets before passing them to the receiving application. In most cases, this is informational rather than fatal, but persistent occurrences usually point to unstable network adapter drivers, faulty NIC hardware, or misconfigured firewall/antivirus software intercepting and delaying packet delivery.

Step-by-Step Resolution Guide

  1. Update the Network Adapter Driver
  • Press Win + X → select Device Manager.
  • Expand Network Adapters, right-click your active adapter, and select Update driver.
  • Choose Search automatically for drivers. If an update is found, install it and restart your PC.
  1. Reset TCP/IP Stack and Winsock Catalog
  • Open Command Prompt as Administrator (Win + X → Terminal (Admin)).
  • Run the following commands in sequence:

    netsh int ip reset
    netsh winsock reset
    ipconfig /flushdns
  • Restart your computer for changes to take effect.
  1. Adjust MTU Size
  • In the elevated Command Prompt, run:

    netsh interface ipv4 show subinterfaces
  • Identify your active interface, then set the MTU to 1400 (a common safe value) using:

    netsh interface ipv4 set subinterface "YourInterfaceName" mtu=1400 store=persistent
  1. Check Firewall and Antivirus Interference
  • Go to Settings → Privacy & Security → Windows Security → Firewall & network protection.
  • Temporarily disable third-party antivirus/firewall software and test if the error persists.
  • If resolved, add an exception for the affected application in your firewall settings rather than leaving protection disabled.
  1. Disable TCP Auto-Tuning (For Persistent Cases)
  • In the elevated Command Prompt, run:

    netsh interface tcp set global autotuninglevel=disabled
  • Restart the system and monitor for recurrence of Error 707.

Alternative or Verification Steps

  • Verify the Fix: Open Event Viewer (Win + X → Event Viewer) and check Windows Logs → System for recurrence of Event ID 707 after applying the steps above.
  • Alternative Solution: If the issue persists, try connecting via a different network (e.g., switch from Wi-Fi to Ethernet) to rule out wireless interference, or update your router/switch firmware to ensure proper packet handling.