HP Deskjet 3055A does not connect to WIFI with security

Question

I am trying to configure a Deskjet 3055A on my DD-WRT router.  I am a highly skilled networking engineer so I know 100% what I am doing.
Firstly, DD-WRT does not support WPS conenction, because these are highly insecure.  This means my only method of connecting the pritner to my home network is to connect it to my PC and use the installation utility (dowloaded from your drivers page)  I am using version 28.8.
My router supports both 2.4 and 5GHz and I know the printer is only 2.4GHz.  I completely disabled the 5GHz network for the purpose of connecting the printer even though it should not have any effect.
I have also rebooted my router, and reset the printers wireless network using its in-built control panel.
Anyway, after a shameful 2 hours troubleshooting, I managed to find out that the printer WILL NOT CONNECT to the WIFI network if any security is applied against it.  It works 100% fine with open security however, this is completely unnacceptable.
I have tried both WPA Personal and also WPA2 Personal, both with the same effect.
For the sake of trying, I also added the printer to my open WIFI network and tried to manually edit the WIFI setting through the printers web interface however, whenever I try and access the Wireless setup wizard, I simply get an error saying "Internal System Error" - eventually I managed to get around this other bug that has been there for years (see http://h30434.www3.hp.com/t5/Printer-Networking-and-Wireless/Internal-System-Error-prevents-access-t...
After going through the printers web interface WIFI setup, the issue is still the same and it will not connect.
HP, we were about to order 2500 of these printers for our remote site users.  If you do not come up with a quick solution/bug fix, consider the business lost!
Regards
Ian
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Answer 1

After much playing I managed to find a fix for this!
For all users who are unable to find a fix using the other methods, here's what to do.
Change your local network to open security but note down your WIFI setting for your typical setup.
Connect the printer to the open network using the HP software (using a USB cable)
Go to the printer's URL, but ensure you connect using HTTPS - if you get an internal system error, keep refreshing until it works (WHAT A JOKE!!!!)
Click on "Network" on the top, then click on "Advanced" on the left.
Enter the network settings as they should be when secured.
At the bottom, tick "In an infrastructure network, use 802.11b/g behaviour(assuming your netwoek supports g, otherwise use the b only option), then click apply.
Turn your wireless security back on, on your router and then the printer should connect!
I really am baffled as to why this isn't automatically enabled, if the printer doesn't work with wireless security on a Wireless N network, then have this as the default!
HP - feel free to thank me in this post!