No ping over crossover cable?

[Hansoon]

No ping over crossover cable?

MFP can be pinged over the network from all 12 computers. From 11 computers the MFP can also be pinged when each one is connected directly to the MFP by crossover cable. However from one computer (same Mobo, NIC, Platform as the others) ping to MFP over crossover cable is not possible.

Any explanations beside an eventual incompatibility of NIC/NIC?

Hans

[pepper38_cnd]

No ping over crossover cable?

MFP can be pinged over the network from all 12 computers. From 11 computers the MFP can also be pinged when each one is connected directly to the MFP by crossover cable. However from one computer (same Mobo, NIC, Platform as the others) ping to MFP over crossover cable is not possible.

Any explanations beside an eventual incompatibility of NIC/NIC?

Hans

Is it possible that the default speed of the Nic is set differently than the copier, so the switch handles this when going thru the network, but not when direct connect with crossover. Or it's a switching issue between the 2 nics which can usually be resolved by setting the default speed of either the copier or PC nic or both.

[gig0]

Double check your network settings. Have you tried to ping other devices on the network? How about a 127.0.0.1 loopback?

[Setright]

I'm with pepper on this one


Check the speed settings, they must be identical. Auto on one end and a fixed speed on the other end will not work.

[Hansoon]

Double check your network settings. Have you tried to ping other devices on the network? How about a 127.0.0.1 loopback?

Yes, I tried several constellations as well as reverse checks. Its only this particular combination of only the mentioned computer with that MFP.

Hans

[Setright]

Is it running Vista ?

[pepper38_cnd]

This might be a dumb question. But why is it important to have each workstation communicating directly with a crossover cable? If they all work when connected to the network who cares? It sounds like we may be trying to solve a non issue.

[Hansoon]

Is it running Vista ?

Nope, XP

This might be a dumb question. But why is it important to have each workstation communicating directly with a crossover cable? If they all work when connected to the network who cares? It sounds like we may be trying to solve a non issue.

I discovered this during part of the troubleshooting process of why sometimes several controllers (Pi-3502, 5501) are not or only limited responsive within existing networks. Tried to pin down the issue to particular hardware. The matter itself is unimportant but the cause laying behind of it might be of interest.

Hans

[DIMM]

I had a network problem with a iR2570 one time, the customer have purchase computers and a new switch and unfortunately, when they later should print did the printer not working properly. The problem was the new weak switch. I replace it with a stronger.
Maybe you are near the lower limit with some switch.

[pepper38_cnd]

Ok now that you haven given a little more information, and stated that the original issue is that some MFP's are dropping off the network. There can be several causes, the Ip address given to the MFP may not be outside the scope of the DHCP and the address is being given out to another PC possibly the one you can't ping from? The other thing that can cause MFP's to drop of the network are to many unnecessary services enabled, so if you don't need them disable Netware, AppleTalk, Bonjour, Direct SMB Hosting, and LDAP.

[Hansoon]

Ok now that you haven given a little more information, and stated that the original issue is that some MFP's are dropping off the network. There can be several causes, the Ip address given to the MFP may not be outside the scope of the DHCP and the address is being given out to another PC possibly the one you can't ping from? The other thing that can cause MFP's to drop of the network are to many unnecessary services enabled, so if you don't need them disable Netware, AppleTalk, Bonjour, Direct SMB Hosting, and LDAP.

MFP's are not "dropping of the network" but slow or not responding. Except this particular one, all can be pinged however with reply < 5ms. DHCP is turned off, machine have fixed IP's ofcourse. All unnecessary services where off from the beginning. Basically the setup was working for many month's until problems started to develop.

Thanks

Hans