I do not know a lot about the diablo cam but I will try to help you.
1. Did you delete every CAID that is not needed?
2. Did you install the latest firmware for the diablo cam?
3. Try these settings:
Configuration
Caids File [NAME_OF_YOUR_CAID_FILE] delete every unused caid
AutoPMT [OFF]
Emulators [OFF]
SmartCards EMMs [OFF]
Log [OFF]
Emulators Priority [1:Cards - 2:EMU]
Fixed CW [OFF]
SmardCardMess. [Show Never]
Delayer [10] (Wenn es funktioniert schrittweise herunter gehen)
Leds [ON]
Stream Speed [MID]
4. If it still doesnt work, format your CAM, use a editor like ULTRAEDIT to edit your files on a PC. If asked for "convert to DOS" allways click NO.
5. Disable WPA / WPA and connect with your cam unsecured. If this works you have to find the right security system for diablo cam and router.
6. If nothing works at all, try to save your settings, remove your personal data and send it to me. I will try to find the bug.
7. Log into your AP. make sure that your Cam has a stable connection. Use ping IP -t for testing to make sure that it is stable.
Edit:
One port is good, one port is bad. I think it can be not Settings in my diablo cam/Network??
Did you edit the lines on your PC? You might have destroyed the linux format of the file. Look at point 4. If the format of the file is wrong (DOS instead of LINUX then PASSWORD could become "PASSWORD " which is the wrong password)