Device disappeared

[Darquebus]

Dear Sirs!

I have an issue what I try to explain, I hope you will have idea what causes, or what is the solution.

The unit is an RND4000 with 4x2TB WD HDD in RAID5, 69% used space in my work place.
Running 4-5 years ago without problem, but suddenly on a day the shares disappeared.
Direct connected to the LAN port of notebook, IP is 192.168.168.240 with 255.255.0.0 mask, the NV+ IP is 192.168.168.168.

After power on the RAIDar software shows the unit, it is checking the FileSystem, shows everything fine.
But after this the unit totally dies. Ping does not work, the IP does not exist, I can't access my backup files anymore.

I have another RND4000 for private use at home, can I use that unit to backup the files from that Work NAS if I swap the HDDs?
Or do you have idea what happened with the unit?

Thank you so much your kind help!

[mdgm]

subnet mask should be 255.255.255.0, I think.

Please open a tech support case and post your case number.

[StephenB]

subnet mask should be 255.255.255.0, I think...

Yes. But it really shouldn't matter with direct connect with these particular addresses. Could be worth a try though.

[Darquebus]

subnet mask should be 255.255.255.0, I think.

Please open a tech support case and post your case number.

I didnt change the default IP and mask... it was the default mask.
Sadly it is over warranty period, I think they will not take care of it. :/

[StephenB]

the on-line email support might still be available, though of course a RMA wouldn't happen.

Is there anything interesting going on with the lights or on the front panel LCD?

[Slasky]

255.255.0.0 is still a valid subnetmask, the only difference is that he now has 65 000 possible hosts within that network, rather than 254 which you get from the 255.255.255.0 subnetmask. As long as the subnet-masks are the same on both NAS and client, then they should be able to reach each other.

[StephenB]

255.255.0.0 is still a valid subnetmask, the only difference is that he now has 65 000 possible hosts within that network, rather than 254 which you get from the 255.255.255.0 subnetmask. As long as the subnet-masks are the same on both NAS and client, then they should be able to reach each other.

Agreed. That is why I said it shouldn't matter.

[Darquebus]

Dear Sirs!
It seems to me problem solved with a Firmware Reinstall with the small pinhole button + Power button, datas and files are in safe, and now the share works too.
Im a little bit confused, because noone touched the NAS, it connected directly to my notebook, and it lost without any warning sign.
Anyway, thank you for your patience and attention.
BR,
Darq

[StephenB]

I'm glad the OS reinstall fixed it.

Possibly something corrupted the IP config on the NAS somehow - I agree it is a puzzle.

[HERBIEO]

If its been running 4-5 years that's pretty good without any problems but you are going to get some sort of problem eventually, and that is when OS reinstall can sort things out a lot of the time.

[mdgm]

Now would be a good time to ensure your backup is up to date.