Bypass the below links in Smoothwall to allow Samsung Tablets to update. Follow the below link on how to bypass Smoothwall URLs if you don’t already know.
https://www.webtechie.co.uk/2018/06/21/bypass-urls-ips-in-smoothwall-internet-filtering/
URL to Allow Update Through Filtering for Tablets to Update
ospserver.net
Other URLs That May Need Bypassing
api.spd.samsungdm.com
dir-apis.samsungdm.com
vas.samsungapps.com
gslb.secb2b.com
dgm-prd-euw1-log.s3.amazonaws.com
samsungknox.com
mfisiel.com
gslb.secb2b.com:443
eu-elm.secb2b.com:443
eu-prod-klm.secb2b.com:443
secb2b.com
gslb.secb2b.com:443
eu-elm.secb2b.com:443
eu-Knox.secb2b.com:443
eu-prod-klm.secb2b.com:443
kaps.secb2b.com:443
d28lmkz7f2awiw.cloudfront.net:443
samsungosp.com
eu-auth2.samsungosp.com
dms.ospserver.net