Get rid of this check in the DNS settings
Image may be NSFW.
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Make sure the time is correct to within 3 minutes on the MFP (Did not matter before, does on the new devices due to HTTPs and the lack of NETBIOS over TCP/IP)
Odd that Win 10 works though. We might need a Wireshark to diagnose the issue, but for obvious reasons I would not suggest uploading them here obviously. You may need to call in to Xerox.
