This topic is kind of old but the same issue started happening to me 24 hours ago. KTS (21.3.10.391) and WhatsApp are up to date, so it is not that. Also, WhatsApp is green-listen under the Firewall Application Rules.
This topic is kind of old but the same issue started happening to me 24 hours ago. KTS (21.3.10.391) and WhatsApp are up to date, so it is not that. Also, WhatsApp is green-listen under the Firewall Application Rules.