Trying to connect my NAS back to the network and having an issue.

Forums › LAN (ethernet/Wifi/routers/Bluetooth) › Trying to connect my NAS back to the network and having an issue.

Geektastic

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#299341 30-Aug-2022 22:10

After our recent house move I finally got round to plugging in the NAS drive (Seagate 4 bay).

I cannot find it to connect. I am using Mac OSX 12.5.1 .I opened Terminal and ran arp -a which returned the IP address as follows

XXX.XXX.9.84 at (incomplete) on en1 [ethernet]

The Xs are numbers in the Terminal return - I omitted them in case reproducing them would be a Bad Idea.

I cannot find out what is 'incomplete' though. I am sure someone with better knowledge of these things here will know!

fe31nz

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#2961346 31-Aug-2022 00:01

The normal reason for seeing an incomplete arp is that the device with the arp table you are querying has sent an arp packet for that IP address, but has not received a reply. So in your case, either the NAS is not connected to your network on the subnet you are sending the arp on, the subnet is misconfigured (a bad netmask value, for example), or the IP address that you think the NAS is on is incorrect. So how is the IP address of the NAS configured? Is it via DHCP, or a static IP address? Do you have local DNS which might be misconfigured? Has the NAS been plugged into the wrong port on your Ethernet switch that belongs to a different subnet?

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xpd

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#2961355 31-Aug-2022 07:26

Yeah sounds like the NAS could just be on the wrong network.

https://www.seagate.com/au/en/manuals/network-storage/business-storage-nas-os/nas-os-setup/seagate-network-assistant/

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Geektastic

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#2961377 31-Aug-2022 08:45

Ok. Thanks for the options. Several of which exceed my circle of competence as far as these things go! Subnet mask?! Ok. Right…! 🤔

I’m wondering if the Ethernet port I plugged it into is actually connected. The IP address is the one that the NAS displays when you check Network in the menu, so presumably correct.

My alarm installer/network tech/electrician guy is due this week so I’ll have him test the port when he’s here.

Mehrts

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#2961434 31-Aug-2022 09:16

What does your network topology look like?

Is it just a basic setup with ISP all-in-one box > NAS? Or do you have a more complex setup?

Have you tried connecting a laptop or other hardwired device to that port to see what connectivity it has?
Have you tried connecting the NAS directly to the router/switch?
Does your NAS happen to have a static IP address, or one handed out by DHCP?

What range of IP addresses do other devices on your network have, specifically looking at the third block (octet)? For example the NAS is xxx.xxx.9.x, but are your other devices on xxx.xxx.1.x?

By the way, it's fine to post internal IP addresses as they're only local to your network, not the internet. But usually only the last couple of octets are required for troubleshooting.

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#2961445 31-Aug-2022 09:42

Plug NAS into known working network port/switch.

Works ? Port issue.

No ? My guess is IP issue.

Run the software I linked above, and that will attempt to find the NAS for you.

Gavin / xpd / FastRaccoon / Geek of Coastguard New Zealand

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