F5F Stay Refreshed Hardware Desktop Windows 10 on a Lenovo laptop shows "destination host unreachable" during ping from the desktop on your home network.

Windows 10 on a Lenovo laptop shows "destination host unreachable" during ping from the desktop on your home network.

Windows 10 on a Lenovo laptop shows "destination host unreachable" during ping from the desktop on your home network.

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housten15
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10-28-2024, 07:16 AM
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I recently acquired a refurbished Lenovo T460s laptop (completely reconfigured). My goal was to connect it via RDP from my home desktop (a custom build, specs available here) while I was away. Unfortunately, RDP failed. Both devices are running Windows 10, and the issue seems isolated to a single host. My router is an Asus GT-AC2900. When attempting to ping either machine, I received "destination host unreachable." This is puzzling because my desktop and laptop can reach other hosts on the same network. It suggests that firewall or network settings might be blocking communication between these two systems, rather than a direct host-side problem. I’ve tried several troubleshooting steps:

- Verified both devices appear in the router’s network map with valid DHCP-assigned IPs.
- Confirmed they’re on the same subnet and private network in Windows.
- Ensured firewall rules allow ICMP/Echo for both hosts.
- Disabled Windows Firewall temporarily—no impact on connectivity.
- Removed any Lenovo software from the laptop; no changes observed.
- Ran `arp -a`—neither host shows up in the expected list.
- Checked IP assignments via DHCP—automatic and correct.
- Tested via Ethernet to rule out Wi-Fi interference.

According to Google, this points to a missing route, but the router settings look normal and IPs were auto-assigned. I’m still unsure what’s causing this gap. I’m hoping the community might suggest alternative approaches.
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H
housten15
10-28-2024, 07:16 AM #1

I recently acquired a refurbished Lenovo T460s laptop (completely reconfigured). My goal was to connect it via RDP from my home desktop (a custom build, specs available here) while I was away. Unfortunately, RDP failed. Both devices are running Windows 10, and the issue seems isolated to a single host. My router is an Asus GT-AC2900. When attempting to ping either machine, I received "destination host unreachable." This is puzzling because my desktop and laptop can reach other hosts on the same network. It suggests that firewall or network settings might be blocking communication between these two systems, rather than a direct host-side problem. I’ve tried several troubleshooting steps:

- Verified both devices appear in the router’s network map with valid DHCP-assigned IPs.
- Confirmed they’re on the same subnet and private network in Windows.
- Ensured firewall rules allow ICMP/Echo for both hosts.
- Disabled Windows Firewall temporarily—no impact on connectivity.
- Removed any Lenovo software from the laptop; no changes observed.
- Ran `arp -a`—neither host shows up in the expected list.
- Checked IP assignments via DHCP—automatic and correct.
- Tested via Ethernet to rule out Wi-Fi interference.

According to Google, this points to a missing route, but the router settings look normal and IPs were auto-assigned. I’m still unsure what’s causing this gap. I’m hoping the community might suggest alternative approaches.

Reply
Reply