Small Business Network Switch Freezes Intermittently

Background:
I am managing a small Novell NetWare environment that consists of: (2) Netware 6.5 SP6 boxes, (7) Windows XP SP3 workstations, and (2) network printers. These devices are all connected to a basic, unmanaged, 10/100/1000 Mbps switch (Netgear JGS524).
The Issue:
Unexpectedly, all devices on the Network will randomly lose connectivity at the same time (no pings go thru to/from any device), and the lights on the front of the switch "freeze" in their current state (for example, if I pull a network cable out of a switch port, it will remain illuminated in its last state, as if the cable were still plugged in). The only way to restore connectivity at this point is to reset the switch by cycling the power on/off.
Troubleshooting History:
We've been experiencing this problem for quite some time, and at first I assumed the switch was bad, so I replaced it with a different model only to find that the issue still occurs (the switch listed above is the current model we're using).
I'm having trouble diagnosing this problem, as I can't seem to correlate what's happening on the network to initiate the switch lock-up. Sometimes it will happen twice in one day, and sometimes it will go 3 or 4 days with no problems. It would be hard to leave a packet scan running for 3 days and then try to determine at what time the lockup occurred if Im not continually observing the switch 24/7.
Anyway, any thoughts on a good approach to narrowing down what's causing this? Or any obvious culprits that might exist in a Netware environment that could be causing a broadcast storm?
Thanks!
Joe

When you say you've replaced the switch with a different model...what did you mean by that? A different vendor or same vendor just different model of the same?
I'd probably try a different switch altogether...but what are you running on the Netware boxes? Most services on Netware have pretty good log files. I would start with that. Also, you can get yourself a pretty easy to set up (free) network monitoring system and sue that for diagnosis.
--El
Originally Posted by Kart46
Background:
I am managing a small Novell NetWare environment that consists of: (2) Netware 6.5 SP6 boxes, (7) Windows XP SP3 workstations, and (2) network printers. These devices are all connected to a basic, unmanaged, 10/100/1000 Mbps switch (Netgear JGS524).
The Issue:
Unexpectedly, all devices on the Network will randomly lose connectivity at the same time (no pings go thru to/from any device), and the lights on the front of the switch "freeze" in their current state (for example, if I pull a network cable out of a switch port, it will remain illuminated in its last state, as if the cable were still plugged in). The only way to restore connectivity at this point is to reset the switch by cycling the power on/off.
Troubleshooting History:
We've been experiencing this problem for quite some time, and at first I assumed the switch was bad, so I replaced it with a different model only to find that the issue still occurs (the switch listed above is the current model we're using).
I'm having trouble diagnosing this problem, as I can't seem to correlate what's happening on the network to initiate the switch lock-up. Sometimes it will happen twice in one day, and sometimes it will go 3 or 4 days with no problems. It would be hard to leave a packet scan running for 3 days and then try to determine at what time the lockup occurred if Im not continually observing the switch 24/7.
Anyway, any thoughts on a good approach to narrowing down what's causing this? Or any obvious culprits that might exist in a Netware environment that could be causing a broadcast storm?
Thanks!
Joe

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Yes, sorry. The first time I posted, I missed the part where it said the post must first be approved by a moderator. I don't see any option to delete this one, but a moderator is certainly welcome to delete this duplicate.

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SG300-28
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SG300-28P
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SG300-52
SRW2048-K9
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Hola liriantech,
Gracias por el tema.
En los switches de la serie 200(más de 8 puertos )/300/500 estás capaz de recuperar la contraseña del usuario administrativo através de entrar en el boot menú. Los pasos son los siguientes: debes conectarte al switch através por serie. Después de verificar la conexión debes reiniciar el switch y prestar atención: durante el reinicio, después de la verificación del hardware, te aparecerá el banner de Cisco. Junto por abajo de aquello te saldrá la opción de pinchar Exit o Enter para terminar el proceso de carga. Debes prestar atención ya que aquella opción será disponible solo por 2 segundos. Através de parrar la carga te aparecerá el boot menú. Opción “3” se llama Recuperar la Contraseña, pincha “3” y 2 veces Enter. El switch continuará la carga pero te dejará entrar en modo privilegiado sin usuario y contraseña solo esta vez. Ahora, através del acceso CLI, debes crear un usuario y añadir contraseña al aquello de nivel 15 en esta forma:
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Te pedimos tratarlo e informarles cómo te ha salido.
Una cosa más: en general el soporte en el fórum se ofrece en Ingles para que puedan todos los clientes acceder la información. Entiendo de que podría ser gran molestia pero te pido amablemente escribir en Ingles como lo puedas.
Gracias por la atención y buenos días.
.:|:.:|:. CISCO | Victor Apostolov | Network Engineer | Cisco Technical Support

Help blocking certain website and IP on a SG 300-20 Small Business Switch

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Being new to Cisco Small Business switch I she tried with no positive result. Could someone give me some steps or maybe direct me where I can find a step by step resource.
Thank you

Hello,
Thank you for contacting us for support with your device.
Unfortunately what you are trying to do is not possible with any Small Business switch.
It is true that this switch can be used in layer 3 and it will be able to route your traffic on the inside of the network, but it will not be able to route your traffic to the Internet as it doesn't do any NATting.
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Small Business Network Switch Freezes Intermittently

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