Wireless Network Printing; "Network is Busy", Cannot ping printer from my Macbook Pro

Question

I have a MBP (Mac OSX 10.6.8, Intel i7) connected wirelessly to a Actiontec Q1000 wireless router.  The wireless router has a printer connected via a LAN ethernet cable.  I am able to log in to the router (192.168.0.1) and see the printer (192.168.0.8), and from the router's Utilities I can ping the printer using the router's ping tool.  I am unable to ping the printer from my MBP.  I am unable to log into the printer's IP address by typing in 192.168.0.8 in my browser window.
I also have a Windows laptop connected to the same wireless network.  From the router, I can see the Window's laptop (192.168.0.10) and the Windows laptop can ping the printer (again, 192.168.0.8).  Additionally, from the Windows laptop I can log into the printer's IP address by typing in 192.168.0.8 in my browser window.
The printer is a Dell 1700n and I am using the "Generic Postscript Printer Driver".  I am able to delete the printer, and then add it back in as a USB connected printer and print fine.  I then delete the printer and add it back in as a network printer (192.168.0.8) and am then unable to print.  I am getting an error that says "Network is busy, will retry in ___ seconds".  I then get a error message that says the "Printer is busy".
Using the MBP's "Network Utility's" ping tab, I am able to ping the router (192.168.0.1), the other Windows laptop (192.168.0.10), my Roku (192.168.0.7), etc.  I am unable to ping the printer (192.168.0.8).
From my Window's CMD prompt, I am able to ping the router (192.168.0.1), my MBP (192.168.0.5), my Roku (192.168.0.7) and the printer (192.168.0.8).  I am also able to print wirelessly from my Window's laptop (192.168.0.10).
I have looked for a CUPS printer driver for my Dell 1700n printer, but there is only a CUPS printer driver for the Dell 1710n printer (which is different).
I have also googled around and found that the Dell 1700n is an old Lexmark E322 printer, so I installed the CUPS Lexmark E322 printer driver.  I then try to print wirelessly from my MBP and nothing.
This is clearly a network MBP issue, and I have searched the forums but have been unable to track down a solution.  I would appreciate anyone's help to enable me to:
1.  Be able to ping my printer (192.168.0.8),
2.  Be able to log in to my printer via a web browser (http://192.168.0.8), and
3.  Be able to print wirelessly to the printer from my MBP.
Does anyone have any thoughts?
Thanks in advance,
MC

Answer 1

So I spent almost 3 hours on a share session with Lexmark, who I must say I was incredibly impressed with their patience.  Long story short, my wife and I have the exact same MBPs.  Her MBP was printing fine to the same printer.  The tech and I verified that all of our network settings were identical.  At the end of the day, the solution was power cycling the router.  Poof.  Magic.  No idea why the power cycle worked, but it worked and I now have a solution.  Let me know if anyone has any questions about all of the steps in between.
MC