@qsystems said in From 2.4.5_1 to 2.5.0.a.20210115.2350 - ipsec mobile client vpn certificate based no longer working:
Deleted all mobile configs and put back in the active config, unchecked group authentication under mobile client - extended configuration. It now works.
Could be related to group authentication, see https://redmine.pfsense.org/issues/10748