On UTM 9.720-5 I receive an email telling:
Firmware Up2Date installation failed: IPS pattern installation was not successful but will keep trying to install. During this time IPS might not be active. Please inspect the UTM if you keep getting this message! Please check the up2date log file for detailed information
I connect to UTM and ran in a terminal
# audld.plx -level d
It finish with
>>> Modules::Audld::Download::_request::414()
starting file download
>>> Modules::Audld::Download::Check::verify_checksum::62()
'8a75d99339841bec269061c6e9b5fadd<=>d41d8cd98f00b204e9800998ecf8427e' for file '/var/up2date/sasi/u2d-sasi-9.363.tgz.gpg.8a75d99339841bec269061c6e9b5fadd.tmp'
>>> Modules::Audld::Download::Check::server_response::136()
eu2.utmu2d.sophos.com/.../u2d-sasi-9.363.tgz.gpg Server Error code=500
>>> Modules::Audld::Download::_download::269()
Tried all 5 Servers: Download unsuccessful
Fileset couldn't be made synchronous
Downloading the file from my laptop is working perfectly. It's a home license, I renew it last week, since I have this emails, around 5 per hours.
If someone had any clue, would be great 
Daniel
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