NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
UmbraSilentium
Apr 04, 2025Aspirant
ReadyNas Unreachable
Hey everyone! I have a quite old, hand me down of a ReadyNas, I believe it is the RNDP4000-100NAS. Recently, I have been having connection issues out of the blue. From the CMD on my personal pc, ...
Sandshark
Apr 04, 2025Sensei - Experienced User
If it is an RNDP4000 (Pro4), then it has two Ethernet ports. Does the same thing happen on both ports? When it stops communicating, do you see any LEDs lit at the Ethernet port? When this happens, do you observe any other odd behavior (inability to properly shut it down would be one of interest).
Is the switch it's plugged into a "green" one? While it usually means that there is some degradation in the NAS NIC circuit, the power lowering of such a switch can be an issue. Do you have another switch you can plug it into?
You have a heat-induced issue with a component in the NIC circuit or the power supply. Have you ever had the unit plugged in but off in a place that gets very hot? The components I'm thinking of are always on, even when the unit is "off" in order to support WoL and become damaged if the NAS is plugged in and left in a very warm place.
UmbraSilentium
Apr 04, 2025Aspirant
Appreciate the quick reply!
I'll do a restart and test it out on the second port, we'll see if it happens after a bit of time. When plugged into the first port (LAN1 for any future conversations), the Ethernet port is solid green with a blinking amber. Proper shutdown also doesn't function, that being a single press, followed by another single press to confirm shutdown. I have to press and hold power button for the unit to fully shut off.
I only have the one switch, it's the Netgear GS308, seemingly haven't had any issues with it thus far.
The location it's in shouldn't be getting hot as far as I can tell. It's in an office, but it's not directly up against anything, nor is it unable to get proper airflow.
- SandsharkApr 05, 2025Sensei - Experienced User
Do try the other port. You may also want to try another port on the switch, though a totally separate switch is better, especially if the one it's currently connected to is "green".
But, proper shut-down also not working is usually a sign that the +5VSB (5 Volt Standby) power is not properly functioning. It powers the on/off and NIC circuitry and is always on, even when the NAS is off, which makes it often the first to fail. Almost always, a power supply replacement will fix it, if that is the issue. It sounds like yours may be getting poorly regulated the more it heats up. The fact that you can ping it does make this diagnosis a lot more questionable, though.
Be aware that while the power connector looks like a standard ATX 20-pin one, it's wired slightly differently. You can modify a standard Flex ATX (aka mini ITX) supply, but the price of pre-modified ones has gotten reasonable enough that that's not what I typically recommend any more. You can also create an adapter cable to externally connect a standard ATX supply (if you already have one) just to see if that fixes the issue.
Related Content
NETGEAR Academy

Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!