Printer not responding after switching to Gateway Router

Hi,

Would it be correct to assume that the printer drivers are the same as before (when it worked)?

Which exact Samsung model is it? Which Verizon gateway/router model (please do not post any serial numbers or access codes)?

Have you tried resetting the printing system and re-adding the printer?

Any change if you try the following power-cycle sequence?

Power off the gateway/router, the printer, the Mac Pro, and all other devices/computers. Wait two to three minutes. Power on the gateway/router. Wait two to three minutes. Power on the printer. Wait a minute or two. Power on the Mac Pro. Finally, power on all other devices/computers.

Add a printer on Mac – Apple Support (UK)

Reset the Mac printing system to solve a problem – Apple Support (UK)

Thank you for the additional information.

Printing a configuration page could perhaps provide you with some details of interest regarding the present ML-2851ND setup. Alternatively, you want to check whether it is possible to access an internal web server of the printer (SyncThru Web Service).

http://h10032.www1.hp.com/ctg/Manual/c05753309.pdf#G7.1132082

It should not (normally) be necessary to use other/special printer network setup applications.

You could then compare this to the network settings of the G3100 router (and the old router). Typically, DHCP is used, but sometimes a static/fixed IP address is preferred for printer connections.

https://www.verizon.com/home/accessories/media/images-accessories/productPDF/11790_VER_CONS_G3100_FIOS_ROUTER_DATASHEET_v1r3.pdf

https://www.verizon.com/supportresources/content/dam/verizon/support/consumer/documents/internet/fios-router-user-guide.pdf

Addendum

If you still have the old Linksys router, you could use the local (LAN) side of this device in order to establish a (temporary) connection between the computer and the printer. Just disregard any Internet/WAN port of that router.

This may be useful in an attempt to access the embedded web server in the ML-2851ND, or to print, until the problems in connection with the new router have been solved.

See also the following article about the SyncThru Web Service:

https://support.hp.com/us-en/document/c05591673

Thank you for the update.

A security warning is not unusual when attempting to access the web interface of a router (see, for example, p 21f in https://www.verizon.com/supportresources/content/dam/verizon/support/consumer/documents/internet/fios-router-user-guide.pdf).

Any information about the exact Linksys router model? Any lights as signs of activity? If not, could you check (using a multimeter) whether the power adapter at least has a proper output voltage (without load)?

Alternatively, you could try almost any old/spare Wi-Fi router (maybe from a thrift shop for just a few dollars) as a temporary solution for printing. Only the local side (LAN or WLAN) would really be of importance. The WAN (Internet) side could remain unconnected.

No lights could mean that the power adapter is faulty, but one cannot rule out something in the internal power circuits of the old router.

Often, a power adapter has a barrel-shaped DC output plug. If you have a multimeter, it should not be difficult to determine whether there is any output DC voltage at all. Check the label on the power adapter for the output DC voltage (V) value.

If necessary, it may be possible to use a universal power adapter with multiple DC plugs for a test. If so, make sure that the output voltage is correct. Also, ensure that the universal adapter has an output current (mA or A) rating that is the same or higher than that of the original adapter. The polarity of the DC plug is important (look for a picture at the router DC input, or on the original adapter label).

That is a bit on the low side, even if one would have expected at least some activity (lights) from the router with a value like that. The power adapter does not see a load during a multimeter test, though. 12 V DC and 0.5 A means that the adapter can handle up to 6 W on the secondary side. The lowest permissible load resistance according to Ohm's law would be 12 V / 0.5 A = 24 Ohm, so if you could find a resistor with a higher resistance (any resistor up to approx. 120 Ohm should probably be OK, since a router is not always working at full power), you could carry out a test under load as well.

Addendum

I should perhaps add that a resistor used for a load test would have to have a sufficient power rating. Instead of a resistor, one could use an appropriate incandescent lamp (with a lower power value than that of the adapter).

Another way would of course be to test whether the router is working by using a known-good universal power adapter (capable of delivering 12 V DC and 0.5 A = 6 W).