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Ricoh 6430DN printer unable to establish Ethernet network connection
I have been trying to get a Ricoh 6430DN printer to connected to a Comcast cable modem so that it will be accessible to other computers on the same network.
I have connected two known good network cables from the Ricoh printer to the cable modem and have programmed both a static IP address (on the same subnet) and a DHCP address to this Ricoh network printer.
The network port on this printer and the network port that the printer is plugged into on the cable modem all have flashing connectivity lights. We have also plugged the printer into all 4 of the ports on the cable modem but the printer is still not accessible on the network.
When the printer has a static IP address it is unable to be pinged or to be connected to using a web browser.
When this printer is given a DHCP address its IP address is listed as being 11.22.33.44 (which isn't on the 10 subnet that the cable modem is on) and is also unable to be recognized on the network.
I have called Ricoh support and they haven't been able to get this issue resolved.
What else can be done to fix this issue so that this Ricoh printer will be able to communicate with the rest of the network while it is plugged into the Comcast cable modem?
I have connected two known good network cables from the Ricoh printer to the cable modem and have programmed both a static IP address (on the same subnet) and a DHCP address to this Ricoh network printer.
The network port on this printer and the network port that the printer is plugged into on the cable modem all have flashing connectivity lights. We have also plugged the printer into all 4 of the ports on the cable modem but the printer is still not accessible on the network.
When the printer has a static IP address it is unable to be pinged or to be connected to using a web browser.
When this printer is given a DHCP address its IP address is listed as being 11.22.33.44 (which isn't on the 10 subnet that the cable modem is on) and is also unable to be recognized on the network.
I have called Ricoh support and they haven't been able to get this issue resolved.
What else can be done to fix this issue so that this Ricoh printer will be able to communicate with the rest of the network while it is plugged into the Comcast cable modem?
How many devices are on the network? And how large is your DHCP pool? I have seen more than a few instances of people having trouble when more than a certain number of devices are connected to the Comcast modem (I want to say in the neighborhood of about 6). However, if the Comcast unit is configured as a passthrough and another router or firewall is used, then the issues go away.
Also I would be much inclined to maintain a static IP address for the printer so that it does not collide with other computers. Then make sure your local firewall permits that address.
I do not understand why you cannot ping except (a) a firewall blockage or (b) there may be a hardware issue with the network card.
Can you do a full reset of the printer to bring it back to factory defaults.
I do not understand why you cannot ping except (a) a firewall blockage or (b) there may be a hardware issue with the network card.
Can you do a full reset of the printer to bring it back to factory defaults.
Does the printer show in the router's web interface?
it might help to list:
the router's internal address range
the Ip address of a computer on that range
The subnet mask
it might help to list:
the router's internal address range
the Ip address of a computer on that range
The subnet mask
SOLUTION
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Why?
Can you ping from one connected device to another which are both connected to the Comcast cable modem?
If no, it is very likely that AP isolation is enabled at the cable modem.
Can you ping from one connected device to another which are both connected to the Comcast cable modem?
If no, it is very likely that AP isolation is enabled at the cable modem.
ASKER
Yes I have the admin credentials for the cable modem.
I am able to ping any of the other printers and computers connected to the cable modem.
I am able to ping any of the other printers and computers connected to the cable modem.
SOLUTION
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Can you post back the screens inside admin portal of the cable modem?
Pinging and connection can be different things. There might be some network protocol restricted by the cable modem.
SOLUTION
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ASKER CERTIFIED SOLUTION
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Which means that it is not receiving an automatic IP address.
some of these printers need to be power cycled before network changes come into effect.
I assume the cable modem is actually a router.
Is the router set to issue DHCP addresses?
It may be an auto negotiation failure, in which case try lowering the network speed on the printer to 10mbit half duplex, and see if it connects.