{"id":2055,"date":"2022-06-16T14:29:47","date_gmt":"2022-06-16T18:29:47","guid":{"rendered":"https:\/\/increasec.com\/?p=2055"},"modified":"2022-06-16T14:31:39","modified_gmt":"2022-06-16T18:31:39","slug":"synology-nas-wont-authenticate-users-after-v7-upgrade","status":"publish","type":"post","link":"https:\/\/increasec.com\/?p=2055","title":{"rendered":"Synology NAS won&#8217;t authenticate users after v7 upgrade"},"content":{"rendered":"\n<p>Check the logs to verify the NAS is rejecting NTLMv1<br>Logon to your Synology NAS via Web browser<br>Main Menu (top left), Log center, look for Warning entries that reference NTLMv1<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"31\" src=\"https:\/\/increasec.com\/wp-content\/uploads\/2022\/06\/image-1024x31.png\" alt=\"\" class=\"wp-image-2056\" srcset=\"https:\/\/increasec.com\/wp-content\/uploads\/2022\/06\/image-1024x31.png 1024w, https:\/\/increasec.com\/wp-content\/uploads\/2022\/06\/image-300x9.png 300w, https:\/\/increasec.com\/wp-content\/uploads\/2022\/06\/image-768x23.png 768w, https:\/\/increasec.com\/wp-content\/uploads\/2022\/06\/image.png 1196w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Option1 More Secure, More Hassle:<br>On each PC, start menu, type Local Security Policy, open it<br>Local Policy, Security Options, <strong>Network security: LAN Manager authentication level<\/strong><br>In the Drop-down choose Send NTLMv2 responses Only<\/p>\n\n\n\n<p>*This could mess with other, older SMB devices<br>If the File sharing server requests a LM or NTLMv1, your PC will still respond.  There are more strict options to force your PC to NOT respond to those old protocols.<\/p>\n\n\n\n<p>Option2 Less Secure, Less Hassle:<br>Logon to your Synology NAS via Web browser<br>Control Panel, File Services, SMB, Advanced, Others tab, Allow NTLMv1 authentication.<br><\/p>\n\n\n\n<p>More info here<br><a href=\"https:\/\/mariushosting.com\/fix-synology-dsm-7-smb-clients-get-disconnected\/\">https:\/\/mariushosting.com\/fix-synology-dsm-7-smb-clients-get-disconnected\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Check the logs to verify the NAS is rejecting NTLMv1Logon to your Synology NAS via Web browserMain Menu (top left), Log center, look for Warning entries that reference NTLMv1 Option1&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[91],"class_list":["post-2055","post","type-post","status-publish","format-standard","hentry","category-uncategorised","tag-synology"],"_links":{"self":[{"href":"https:\/\/increasec.com\/index.php?rest_route=\/wp\/v2\/posts\/2055","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/increasec.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/increasec.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/increasec.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/increasec.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2055"}],"version-history":[{"count":5,"href":"https:\/\/increasec.com\/index.php?rest_route=\/wp\/v2\/posts\/2055\/revisions"}],"predecessor-version":[{"id":2062,"href":"https:\/\/increasec.com\/index.php?rest_route=\/wp\/v2\/posts\/2055\/revisions\/2062"}],"wp:attachment":[{"href":"https:\/\/increasec.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2055"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/increasec.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2055"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/increasec.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2055"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}