I have a puzzling problem with devices on my home network. The network uses power-line ethernet adapters, my HTPC runs Windows Vista, and the low-power state uses hibernation. On most occasions when the HTPC wakes from hibernation, it can ping the other devices on the network and receive a reply from those that are powered on. But sometimes it receives no reply, even though those devices are powered on. Example:
192.168.2.5 is the network adapter in the HTPC. Some details:
(1) All of the devices have static IP addresses.
(2) As far as I know, I am not using any antivirus or malware detection software. Windows own tools for antivirus/malware are disabled.
(3) I have encountered this problem with a variety of network devices, specifically:
(a) A Synology NAS.
(b) A WDTV Media Player.
(c) A Belkin Network USB Hub.
All of these devices use some version of Linux (I think), but they perform very different functions. However, they all fail to reply to a ping when the network gets into this weird state (although they were tried at different times -- not simultaneously).
(4) There is another form of network message called an ARP message ("Address Resolution Protocol"). It is similar to ping (send a small data packet to a specified address, receive a small data packet in reply), but it behaves exactly the same as ping -- most of the time it works, but sometimes it doesn't.
Do these symptoms sound familiar to anyone? I am hoping for a solution along the lines of "You need to enable the xyz option". Alternatively, is there some sort of reset, rescan, re-init, or delete-all command that will reset or re-init the network status on Vista and allow the pings/ARPs to work reliably? Rebooting clears the problem, but I was hoping for a solution that is less drastic than that. Thanks for any suggestions.
-- from CyberSimian in the UK
Code:
Pinging 192.168.2.11 with 32 bytes of data:
Reply from 192.168.2.5: Destination host unreachable.
192.168.2.5 is the network adapter in the HTPC. Some details:
(1) All of the devices have static IP addresses.
(2) As far as I know, I am not using any antivirus or malware detection software. Windows own tools for antivirus/malware are disabled.
(3) I have encountered this problem with a variety of network devices, specifically:
(a) A Synology NAS.
(b) A WDTV Media Player.
(c) A Belkin Network USB Hub.
All of these devices use some version of Linux (I think), but they perform very different functions. However, they all fail to reply to a ping when the network gets into this weird state (although they were tried at different times -- not simultaneously).
(4) There is another form of network message called an ARP message ("Address Resolution Protocol"). It is similar to ping (send a small data packet to a specified address, receive a small data packet in reply), but it behaves exactly the same as ping -- most of the time it works, but sometimes it doesn't.
Do these symptoms sound familiar to anyone? I am hoping for a solution along the lines of "You need to enable the xyz option". Alternatively, is there some sort of reset, rescan, re-init, or delete-all command that will reset or re-init the network status on Vista and allow the pings/ARPs to work reliably? Rebooting clears the problem, but I was hoping for a solution that is less drastic than that. Thanks for any suggestions.
-- from CyberSimian in the UK