Can’t access Jetdirect Web server on HP 4000n

Product Name: HP 4000n and 5000n

Problem:
I have installed old 4000n and 5000n printers. I networked them by ethernet cables to my router. I manually set the IP addresses, Network Masks, and Def Gateway. The installations were smooth, and they print beautifully. BUT, when I try to access the Web Server, by entering the IP addresses in my browser, all I get is this blank HP page:

Solution:
You are probably using the older jet direct 600 network cards and unfortunately the web interface will not run with newer version of java. About the last operating system I have seen that will work with those cards to access the web interface was windows 98. You will just have to live without the interface.