I'm running a DM500 Oscam server that has always updated fine. Every month I leave the receiver switched on for a couple of days to catch the EMM then put it back into standby. I did this a couple of weeks ago then yesterday noticed some channels where not opening. Checked the entitlements and 5 ran out on 11/01/2017 with the rest due to go on the 19th.
I've left the DM500 switched on overnight again, turned on AU from clients and tried changing the PIN and its still not updated. When I did the PIN change it wrote the EMM to the card fine so I'm out of ideas.