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Applicable Model(s)
Maple Switch
Title
Request Timed Out
Date
04/07/2025
Rev
00
P/N
TN3001
Summary
A “Request Timed Out” message when using ping or other ICMP tools typically indicates a failure in communication between two network devices. This technical note outlines several common causes and provides guidance for identifying and resolving the issue.
Note: Layer 1 issues, such as faulty cables or failing switch ports, may also cause intermittent connectivity or dropped packets.
Solution
ACL / Firewall configuration
ICMP Echo Requests and Replies may be blocked by endpoint firewalls or network ACLs. On Windows systems, ensure the File and Printer Sharing (Echo Request – ICMPv4-In) rule is enabled in the Windows Defender Firewall.
STP / ERPS blocking ports
In this example, port 2 is discarding packets because both ports 2 and 5 are connected to a managed switch creating a network loop.
Spanning Tree Protocol (STP) and Ethernet Ring Protection Switching (ERPS) can block ports to prevent loops. Devices connected through a blocked port may not respond to ICMP traffic until the topology stabilizes.
IP Address / Subnet mismatch
Devices in different IP subnets (like 192.168.0.0/24 vs. 10.0.0.0/8) must be routed through a properly configured gateway. If no route exists or the subnet mask is incorrect, ping requests will time out.
Host is down or sleeping
The destination device may be powered off, disconnected, or in a low-power sleep state that disables network activity, including ICMP responses.