@David-TP the issue is solved now after TP-link support team help and installed a new SW for the X55 deco , thanks a lot for your support and help

@shadi_soufan No feedback from your side after uploading logs , please need to fix the issue

@David-TP Its done and logs have been shared as per the shared procedure

I had a Mesh wifi systm of nine S7 V1 deco's and was working perfectly (5 wired connected and 5 WIFI) then Ive purchused a new X55 V3 Deco , and replaced the main deco S7 with this new X55 keeping...