HI We have a netgear readyNAS 104 (firmware 6.7.4) and it has been working fine until about a week ago. Now everyday between 13:00 and 17:00 its not available or its available for a few seconds but then the connection is lost. At first i though it might be doing the backup but that is schedule between 21:05 and 23:05 and both the backup and the backup server(the main server is connected to a second backupserver) are using the same timezone. any ideas what might be the problem? thanks in advance.

Perhaps there is another device on the network that is using a static IP addrress that's set for the same IP as the NAS and it comes on at that time and tramples all over the NAS traffic? Or the NAS is set for a static IP that has beeen allocated by DHCP to some other device and, somehow, they co-exist until that time due to some specific traffic?

Hi Sandshark thanks for your reaction. I am a bit cluesless about where to check how the NAS is setting the IPs (either static or dhcp) and if there are other devices using the same IP. Is there an easy way to check this? thanks again

Do you have two ethernet cables connected to the NAS or only one? If you have two cables, then try disconnecting one of them. Then log into the web UI, and looking at the network page. There's a settings wheel next to each of the ethernet NICs Click on the settings wheel for the adapter that isn't grayed out and choose settings. You'll see a pop-up with three tabs. Select the center one (IPv4) If it says "using DHCP" like the one above then the NAS is not using a static address, but is getting an IP address from a DHCP server (in a home network, that would normally be the router). Make a note of this IP address (10.0.0.15 in my screenshot example). When you lose connectivity, first try running RAIDar and see if it can find the NAS. RAIDar is here: https://kb.netgear.com/20684/ReadyNAS-Downloads#raidar Try disconnecting the ethernet cable on the NAS, and then ping the IP address you wrote down. If RAIDar gave you a different IP address, then ping that one too.. If you get a response, then there is a a device with a static address on the network. Then reconnect the NAS ethernet.

Thanks Stephen. When I went into that IPV4 I get the following: Main server using: dhcp Adress is 192.168.2.7 router is 192.168.2.254 dns servers 192.168.2.254195.121.1.34195.121.1.66 Backupserver using: dhcp Adress is 192.168.2.38 router is 192.168.2.254 dns servers 192.168.2.254195.121.1.34195.121.1.66 I dont really get what are the second and third value on the dns server but they are the same in the main server and the backupserver. Could this be the problem?

NATfrank wrote: I dont really get what are the second and third value on the dns server but they are the same in the main server and the backupserver. Could this be the problem? No, they aren't the problem. DNS is the way that names like community.netgear.com get mapped to IP addresses.. Your particular DNS servers are run by KPN, who is likely your ISP. I'm not sure if they are needed in the NAS configuration, but they shouldn't make the NAS unreachable. You might check a windows PC to see if it has the same servers - running CMD and then entering ipconfig /all Note that this might not be an address conflict (though it is worth exploring). Can you tell us a bit more about your network setup? Is 192.168.2.x the only subnet? About how many devices are on it?

Server is unavailable always at the same time

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Sandshark
Sensei
Jun 12, 2017
Perhaps there is another device on the network that is using a static IP addrress that's set for the same IP as the NAS and it comes on at that time and tramples all over the NAS traffic? Or the NAS is set for a static IP that has beeen allocated by DHCP to some other device and, somehow, they co-exist until that time due to some specific traffic?
- NATfrank
  Aspirant
  Jun 13, 2017
  Hi Sandshark
  
  thanks for your reaction.
  
  I am a bit cluesless about where to check how the NAS is setting the IPs (either static or dhcp) and if there are other devices using the same IP. Is there an easy way to check this?
  
  thanks again
  - StephenB
    Guru - Experienced User
    Jun 13, 2017
    Do you have two ethernet cables connected to the NAS or only one? If you have two cables, then try disconnecting one of them.
    
    Then log into the web UI, and looking at the network page.
    
    There's a settings wheel next to each of the ethernet NICs
    
    Click on the settings wheel for the adapter that isn't grayed out and choose settings. You'll see a pop-up with three tabs. Select the center one (IPv4)
    
    If it says "using DHCP" like the one above then the NAS is not using a static address, but is getting an IP address from a DHCP server (in a home network, that would normally be the router).
    
    Make a note of this IP address (10.0.0.15 in my screenshot example). When you lose connectivity, first try running RAIDar and see if it can find the NAS. RAIDar is here: https://kb.netgear.com/20684/ReadyNAS-Downloads#raidar
    
    Try disconnecting the ethernet cable on the NAS, and then ping the IP address you wrote down. If RAIDar gave you a different IP address, then ping that one too.. If you get a response, then there is a a device with a static address on the network. Then reconnect the NAS ethernet.

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Server is unavailable always at the same time

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