After I got a look at the svxlink file in /var/log I noticed the image that I had included entries from February. I found that the log file got so large that the application was no longer logging me in.
After re-imaging it the first time and changing the password, I found that if i deleted the log file the system would let me log in again.
I don’t know enough to say as to why the file is allowed to get so large, because it appears maybe there is a process to create new files and archive? (.gz files?) the old logs, but deleting this fixed my login problems.
If the authors have any ideas for future fixes, maybe the could be included to automatically prevent whatever the underlying core issue is – it is beyond my capabilities for now.
