Postal franking machine doesn't work

[interele]

We have a Neopost postal franking machine. It only supports 10M but I have attached it to a small Netgear switch that does 10./100/1000

and then conected it to our network. As soon as it is plugged in it starts transmitting saturating the 10M link.

If I plug it in the Internet side ( directly to the router ) it works fine

If I plug it in our side of the Smoothwall filter it also works fine

As soon as I plug it into something ( anything ) connected to the main switch it just starts transmitting like there is no tomorrow and won't stop

Any ideas anyone

Ta

M

[JohnC_V]

Hi interele,

Welcome to our community! 🙂

Before any further, May I know the model number of your switch? Is it unmanaged switch? Where is it connected? May you be able to provide us some network topology to look at?

Regards,

[JohnC_V]

@interele,

I would like to have a follow up on this thread. Please let us know if everything works ok now or you still need further assistance.

Regards,

[interele]

Excellent drawing attached 🙂

The network in entirely flat.

As soon as it is pluggin in to the XCM or any switch below it it starts

transmitting like mad  - drawing is simpilified in a way

The franking machine only does 10M so to plug it in anywhere

I use a Netgear GS108PE

Ta

M

[JohnC_V]

@interele,

I apologize. Have you tried replacing the cable? How about the NIC card of the postal machine? It seems that everything works fine except this. Do you have another postal franking machine just to isolate?

Regards,

[interele]

Yes, have tried different cable(s)

The franking machine engineer and I had heated words about this damn thing.

So we picked the whole machine up and carted it over to the school next

door and plugged it into their network and it worked fine.

He said ( and he did admit he knew nothing about networking an this is

just from their technical department ) that if it's plugged in and both

network lights are on solid it means it's plugged into a port >10M

I have checked the speed and it's definately 10M to the device ( but 1G thereafter )

I even attached it to a 10M copper to fibre back to back tranciever which only runs at 10M

just to make sure nothing was trying to negotiate up

Ta

Mal

[JohnC_V]

@interele,

May I know if the switches are configured with VLANs? You can try to disconnect one computer, then use that port to connect the franking machine. Let's see if that would work. We are just doing this in order to isolate it to the previous ports that you used for testing. We can also manually set the port to 10M just to make sure that it is already set before we connect it.

Regards,

[interele]

There are no VLANS - Pluging anything into a port where the franking machine failed, works perfectly

[interele]

Just discovered this:- On the diagram I sent it shows 2 places where it works but I have just discovered that it only works there if it is plugged into the network before you turn it on.

[JohnC_V]

@interele,

How about on the switch? Have you tried plugging it into the switch then turn it on?

Regards,