1. Symptoms
The clw-network-timeout error manifests when the OpenClaw CLI client cannot establish or maintain a network connection to the target server or service within the expected timeframe. Users typically encounter this error during operations that require remote communication, such as fetching configuration data, pushing artifacts, or querying remote endpoints.
Common indicators include terminal output with the following characteristics:
[ERROR] clw-network-timeout: Connection to remote endpoint timed out after 30 seconds
[ERROR] Failed to complete request: network timeout exceeded
[ERROR] Unable to reach service at example.openclaw.io:8080
Additional symptoms may include delayed command execution with no response for extended periods before the timeout error appears, intermittent failures where some commands succeed while others timeout, and behavior that changes depending on network conditions or target endpoint availability. Users often report that the same commands work in one environment but fail in another, particularly when crossing network boundaries such as moving from internal networks to cloud environments or traversing proxy servers.
The error code itself follows a structured format where clw denotes the OpenClaw subsystem, network indicates the communication layer, and timeout specifies the nature of the failure. This structured naming helps distinguish network-related issues from authentication failures or resource access problems.
2. Root Cause
The clw-network-timeout error occurs when network packets fail to traverse between the OpenClaw client and its intended destination within the configured or default timeout threshold. Understanding the underlying causes requires examining several potential failure points in the network communication chain.
Network Latency and Bandwidth Constraints: High-latency connections or bandwidth-limited links can cause operations to exceed timeout thresholds. When the round-trip time for a request-response cycle exceeds the configured timeout value, the client terminates the connection and reports a timeout error. This commonly affects operations involving large data transfers or operations executed over satellite links, VPN tunnels with high latency, or congested network segments.
Server-Side Processing Delays: Remote servers experiencing high load, garbage collection pauses, database query delays, or other processing bottlenecks may not respond within the expected timeframe. The OpenClaw client has no visibility into server-side processing delays and interprets the lack of response as a timeout condition.
Firewall and Security Device Interference: Stateful firewall rules, intrusion detection systems, and security appliances may terminate idle connections, reset sessions flagged as suspicious, or introduce delays during deep packet inspection. Connection tracking timeouts on network devices often fall below application-level timeout values, creating mismatches that trigger client-side timeouts.
DNS Resolution Failures and Delays: While distinct from pure network timeouts, DNS resolution delays can consume significant portions of the overall timeout budget. If DNS queries take longer than expected, the combined resolution plus connection establishment time may exceed the timeout threshold, manifesting as a network timeout in the error message.
Proxy Configuration Issues: Incorrect proxy settings, proxy authentication delays, or proxy-imposed timeout limits can cause OpenClaw commands to fail with timeout errors even when direct connectivity would succeed. Proxy servers often impose their own timeout values that may conflict with application expectations.
TLS Handshake Delays: Secure connections requiring TLS negotiation add round-trip overhead. In environments with certificate revocation checking enabled, OCSP queries or CRL downloads during the TLS handshake can introduce substantial delays that push the total connection time beyond acceptable thresholds.
3. Step-by-Step Fix
Step 1: Verify Basic Network Connectivity
Before investigating OpenClaw-specific configurations, confirm that basic network connectivity exists between your client and the target server.
Before:
# Attempt direct connectivity test
curl https://example.openclaw.io/v1/health
# Command hangs or fails silently
After:
# Test basic TCP connectivity
nc -zv example.openclaw.io 443
# Expected output: Connection to example.openclaw.io 443 port [tcp/https] succeeded!
# Verify DNS resolution
nslookup example.openclaw.io
# Expected output: Server and address information for the target domain
# Test ICMP connectivity (if firewall permits)
ping -c 4 example.openclaw.io
Step 2: Increase Timeout Thresholds
If basic connectivity is confirmed but operations are still timing out, the configured timeout values may be too aggressive for your network conditions.
Before:
{
"network": {
"timeout": 30,
"connectTimeout": 10
}
}
After:
{
"network": {
"timeout": 120,
"connectTimeout": 30
}
}
Alternatively, pass timeout values via command-line flags if supported by your OpenClaw version:
clw --timeout=120s fetch --resource example-resource
Step 3: Configure Proxy Settings Correctly
Ensure proxy environment variables and OpenClaw proxy configuration align with your network requirements.
Before:
# No proxy configuration
echo $HTTP_PROXY
# Empty output
After:
# Set proxy environment variables
export HTTP_PROXY=http://proxy.company.com:8080
export HTTPS_PROXY=http://proxy.company.com:8080
export NO_PROXY=localhost,127.0.0.1,*.internal
# Or configure in OpenClaw config file
export CLW_PROXY=http://proxy.company.com:8080
Step 4: Update DNS Resolver Configuration
If DNS resolution contributes to timeout issues, configure faster or more reliable DNS servers.
Before:
# Check current DNS configuration
cat /etc/resolv.conf
# nameserver points to slow or unreliable server
After:
# Add faster DNS servers to configuration
echo "nameserver 8.8.8.8" | sudo tee -a /etc/resolv.conf
echo "nameserver 1.1.1.1" | sudo tee -a /etc/resolv.conf
# For systemd-resolved systems
sudo systemd-resolve --set-dns=8.8.8.8 --interface=eth0
Step 5: Disable Unnecessary TLS Verification Steps
Certificate-related delays can be eliminated by streamlining TLS configuration.
Before:
# TLS configuration with revocation checking
export CLW_TLS_VERIFY=true
export CLW_TLS_CRL_CHECK=true
After:
# Streamlined TLS configuration
export CLW_TLS_VERIFY=true
# Disable CRL checking if causing delays (use with caution)
export CLW_TLS_CRL_CHECK=false
Step 6: Configure Retry and Circuit Breaker Behavior
Implement automatic retry logic to handle transient timeout conditions.
Before:
# No retry configuration
clw push --artifact large-file.zip
After:
# Configure retry behavior via environment
export CLW_RETRY_COUNT=3
export CLW_RETRY_DELAY=5s
export CLW_BACKOFF_MULTIPLIER=2
# Or via configuration file
echo 'retry: { maxAttempts: 3, delay: 5s }' >> ~/.clw/config.yaml
4. Verification
After implementing fixes, verify that the clw-network-timeout error no longer occurs by executing the following validation steps.
Test Basic Connectivity: Run a simple command that requires network communication to confirm that connections establish successfully.
clw status --server https://example.openclaw.io
# Expected output: Connection successful, status displayed
Test Data Transfer Operations: Execute commands that involve larger data transfers to confirm that timeout values accommodate the expected transfer times.
clw fetch --resource large-configuration --output /tmp/config.yaml
# Verify the file downloaded successfully
ls -lh /tmp/config.yaml
# Expected output: File size matches expectations, no timeout errors
Test Under Adverse Conditions: If possible, test operations from the network location where the timeout originally occurred to confirm that fixes apply to the problematic environment.
# Run multiple operations to confirm stability
for i in {1..10}; do
clw list --resources | head -1
echo "Attempt $i completed"
done
Verify Timeout Configuration Applied: Confirm that your timeout settings are being recognized by the client.
clw config show --field network.timeout
# Expected output: Shows the configured timeout value
Monitor system logs for any recurring network issues that might indicate problems beyond simple configuration changes. Persistent timeout errors despite proper configuration often indicate network infrastructure problems requiring investigation by network operations teams.
5. Common Pitfalls
Avoid these frequent mistakes when troubleshooting clw-network-timeout errors to prevent prolonged investigation cycles and frustration.
Ignoring Underlying Network Issues: Applying timeout configuration changes without first verifying basic connectivity wastes time. A misconfigured firewall or DNS issue will not be resolved by increasing timeout valuesβit will simply take longer to fail. Always start with fundamental connectivity verification before adjusting application-level settings.
Setting Timeout Values Too High: While generous timeout values prevent premature failures, excessively long timeouts create poor user experience by leaving commands running indefinitely when genuine failures occur. Strike a balance between accommodating slow networks and maintaining responsive error feedback. A timeout of 60-120 seconds handles most legitimate use cases without leaving users waiting unnecessarily.
Overlooking Proxy Configuration: Proxy settings are often inherited from environment variables and may not match expectations. Users frequently assume no proxy is in use when corporate environments enforce proxy connections automatically. Always verify proxy configuration explicitly rather than assuming it matches your expectations.
Forgetting to Update Configuration Files: Changes made via command-line flags do not persist across sessions. Users who successfully execute a command with extended timeouts may be confused when the same command fails in a new terminal session. Ensure configuration changes are written to persistent configuration files if consistent behavior is required.
Neglecting Server-Side Logs: Client-side troubleshooting provides incomplete information when the actual problem exists on the server. Network timeouts can result from server-side load, connection limit exhaustion, or misconfigured server timeouts. Review server logs alongside client investigation to identify the true source of timeout conditions.
Assuming Consistent Network Behavior: Networks are inherently variable, and timeout errors may occur intermittently based on load, congestion, or routing changes. A command that times out once may succeed immediately afterward without any changes. Implement appropriate retry logic to handle genuinely transient failures rather than assuming each timeout indicates a persistent configuration problem.
6. Related Errors
clw-connection-refused: This error occurs when the target server actively rejects connection attempts rather than timing out. Unlike clw-network-timeout, which indicates no response was received within the timeout period, clw-connection-refused indicates the server responded with a TCP RST packet or ICMP destination unreachable message. This typically indicates the service is not running, the port is incorrect, or firewall rules explicitly block the connection. Resolution differs significantly from timeout handling, often requiring service startup verification or firewall rule review.
clw-host-unreachable: This error indicates that network routing cannot reach the destination host at all, as opposed to reaching the host but timing out during application-level communication. Host unreachable errors indicate fundamental routing problems, such as missing routes, incorrect subnet configuration, or complete network partition. Unlike timeouts which may occur during long-running operations, host unreachable errors typically manifest immediately upon connection attempt.
clw-dns-resolution-failed: When the client cannot resolve the target hostname to an IP address, this error appears. DNS resolution failures can manifest as timeout errors if the resolver performs multiple retry attempts before failing, but the proper diagnostic path involves verifying DNS configuration and name server availability. This error often occurs when working in isolated network environments or when DNS records have been recently changed but local caches have not updated.