Initial testing looks good. Rebooted Deco and tested. No firewall logs and no quarantine happening. Also NAS tests are passing too. Will monitor for next few days.

Related post - link for those interested https://community.tp-link.com/en/home/forum/topic/839826

@David-TP Thanks David for the update and link. Will try to re-test next week both services on the NAS and Printer - these are the ones I am pending the patch SNMP(CVE-2002-0013) A fixed patch will...

Try turning off Intrusion Protection and see if it works. There are a few issues with intrusion protection at the moment blocking 3rd party LAN requests

@Dugguh Pretty sure this is a fairly wide spread issue. TP-Link yesterday asked me to try again on 29th Oct as they did a fix on the back end but it still happening (asked to Reboot Deco which I did)...

@holsen1 Intrusion Protection is blocking a number of things on the LAN since the recent FW upgrade Check for Firewall logs and send the screenshots to them and post here if you can Similar reports...