Registry error 500

Hi, during the last 3 hours my devices got this errors when try to update

12.11.18 23:36:59 (-0300) Downloading image ''
12.11.18 23:37:14 (-0300) Failed to download image '' due to '(HTTP code 500) server error - Get net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) '

some idea?

Hi @mediainbox from what I could find it seems that the error is related to issues with DNS lookup, what kind of device are they, is there anything that changed in the network recently that might cause DNS issues?