After 3 Years of PhD - problems with University registration - Fight or apply for another PhD The Main problem is university registration as the process is vital to enroll as a PhD student, so that I can submit my thesis and defend it. Administrative issues here in Germany have prevented me from completing the registration process because I am an overseas student and some issues to do with deadlines. 

Some good news are have published three papers as first author in leading journals and written the thesis work as well.  

Is it a good idea to dump this registration process and take another PhD or should I apply for industry jobs? Note that I am not committed to staying in academia.
For the benefit of the wider audience, a little background into the German PhD system is in order.


Researchers after the master's level are hired as Wissenschaftliche Mitarbeiter (researchers, literally "academic personnel"), and work for the individual research groups as half- or full-time employees, with the commensurate salary and benefits.
In parallel, students are expected to register as doctoral students (Zulassung). Such a process will typically involve some classwork for international students, particularly those studying in engineering fields (and those with degrees other than the area they're now studying). One of the forms to be filled out in this process is the Betreuungsbestätigung, which is a commitment by the signer to be the candidate's advisor. 


Normally, deadlines are deadlines; however, if there are mitigating circumstances, many departments will allow the advisor to petition for exceptions to be made. Given that you've made good research progress, it would seem reasonable that your advisor would want to ensure that you get your PhD. So, before doing anything else, talk to your advisor.