Rollback didn’t help so it seems to be only coincidence with 3.11.13. I tried to uninstall Pakon, disabled DNSSEC and still no luck. From the LG TV some applications (like Youtube) work. The only observation is that LG applications are hosted on Amazon AWS as well as Amazon Alexa.
I’m not network expert - but I tried to use tcpdump on traffic from the LG TV (192.168.12.90) and it seems that there is more requests from the TV and just a few responses. I’m not sure if the traffic can be blocked by the firewall on the router or by ISP …
root@omnia:/etc/config# tcpdump -i br-lan host 192.168.12.90 and host not 192.168.12.1
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on br-lan, link-type EN10MB (Ethernet), capture size 262144 bytes
21:51:08.262335 IP 192.168.12.90.50065 > 192.168.13.1.53: 8602+ A? cz.lgrecommends.lgappstv.com. (46)
21:51:13.267578 IP 192.168.12.90.50065 > 192.168.13.1.53: 7353+ A? cz.lgrecommends.lgappstv.com. (46)
21:51:13.791518 IP 192.168.12.90.50065 > 192.168.13.1.53: 19114+ A? cz.lgrecommends.lgappstv.com. (46)
21:51:14.262822 IP 192.168.12.90.50065 > 192.168.13.1.53: 32521+ A? cz.lgrecommends.lgappstv.com. (46)
21:51:15.139702 IP 192.168.13.1.53 > 192.168.12.90.50065: 32521 3/0/0 CNAME cz-lgrecommends-lgappstv-com.aws-prd.net., A 34.253.86.226, A 52.210.163.69 (132)
21:51:15.143519 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [S], seq 2793692832, win 29200, options [mss 1460,sackOK,TS val 649135 ecr 0,nop,wscale 7], length 0
21:51:15.146061 IP 192.168.13.1.53 > 192.168.12.90.50065: 7353 3/0/0 CNAME cz-lgrecommends-lgappstv-com.aws-prd.net., A 34.253.86.226, A 52.210.163.69 (132)
21:51:15.159498 IP 192.168.13.1.53 > 192.168.12.90.50065: 19114 3/0/0 CNAME cz-lgrecommends-lgappstv-com.aws-prd.net., A 34.253.86.226, A 52.210.163.69 (132)
21:51:15.159746 IP 192.168.13.1.53 > 192.168.12.90.50065: 8602 3/0/0 CNAME cz-lgrecommends-lgappstv-com.aws-prd.net., A 34.253.86.226, A 52.210.163.69 (132)
21:51:15.190985 IP ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443 > 192.168.12.90.40158: Flags [S.], seq 206132339, ack 2793692833, win 26847, options [mss 1460,sackOK,TS val 3078164749 ecr 649135,nop,wscale 8], length 0
21:51:15.193770 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], ack 1, win 229, options [nop,nop,TS val 649140 ecr 3078164749], length 0
21:51:15.194701 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [P.], seq 1:518, ack 1, win 229, options [nop,nop,TS val 649140 ecr 3078164749], length 517
21:51:15.241876 IP ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443 > 192.168.12.90.40158: Flags [.], ack 518, win 110, options [nop,nop,TS val 3078164813 ecr 649140], length 0
21:51:15.250146 IP ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443 > 192.168.12.90.40158: Flags [P.], seq 1:1461, ack 518, win 110, options [nop,nop,TS val 3078164819 ecr 649140], length 1460
21:51:15.250401 IP ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443 > 192.168.12.90.40158: Flags [P.], seq 1461:2921, ack 518, win 110, options [nop,nop,TS val 3078164819 ecr 649140], length 1460
21:51:15.250644 IP ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443 > 192.168.12.90.40158: Flags [P.], seq 2921:4023, ack 518, win 110, options [nop,nop,TS val 3078164819 ecr 649140], length 1102
21:51:15.253092 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], ack 1449, win 251, options [nop,nop,TS val 649146 ecr 3078164819], length 0
21:51:15.253094 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], ack 1461, win 251, options [nop,nop,TS val 649146 ecr 3078164819], length 0
21:51:15.253095 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], ack 2909, win 274, options [nop,nop,TS val 649146 ecr 3078164819], length 0
21:51:15.253097 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], ack 2921, win 274, options [nop,nop,TS val 649146 ecr 3078164819], length 0
21:51:15.253098 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], ack 4023, win 296, options [nop,nop,TS val 649146 ecr 3078164819], length 0
21:51:15.259790 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [P.], seq 518:652, ack 4023, win 296, options [nop,nop,TS val 649146 ecr 3078164819], length 134
21:51:15.301411 IP ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443 > 192.168.12.90.40158: Flags [P.], seq 4023:4321, ack 652, win 114, options [nop,nop,TS val 3078164872 ecr 649146], length 298
21:51:15.305642 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [P.], seq 652:2214, ack 4321, win 319, options [nop,nop,TS val 649151 ecr 3078164872], length 1562
21:51:15.376862 IP ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443 > 192.168.12.90.40158: Flags [.], ack 652, win 118, options [nop,nop,TS val 3078164935 ecr 649146,nop,nop,sack 1 {2100:2214}], length 0
21:51:15.390312 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4321, win 319, options [nop,nop,TS val 649160 ecr 3078164935], length 1448
21:51:15.650419 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4321, win 319, options [nop,nop,TS val 649186 ecr 3078164935], length 1448
21:51:16.170428 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4321, win 319, options [nop,nop,TS val 649238 ecr 3078164935], length 1448
21:51:17.210537 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4321, win 319, options [nop,nop,TS val 649342 ecr 3078164935], length 1448
21:51:19.290568 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4321, win 319, options [nop,nop,TS val 649550 ecr 3078164935], length 1448
21:51:23.460563 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4321, win 319, options [nop,nop,TS val 649967 ecr 3078164935], length 1448
21:51:25.320425 IP ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443 > 192.168.12.90.40158: Flags [P.], seq 4321:4358, ack 652, win 118, options [nop,nop,TS val 3078174878 ecr 649146,nop,nop,sack 1 {2100:2214}], length 37
21:51:25.320680 IP ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443 > 192.168.12.90.40158: Flags [F.], seq 4358, ack 652, win 118, options [nop,nop,TS val 3078174878 ecr 649146,nop,nop,sack 1 {2100:2214}], length 0
21:51:25.323585 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [F.], seq 2214, ack 4359, win 319, options [nop,nop,TS val 650153 ecr 3078174878], length 0
21:51:25.358546 IP ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443 > 192.168.12.90.40158: Flags [.], ack 652, win 118, options [nop,nop,TS val 3078174930 ecr 649146,nop,nop,sack 1 {2100:2215}], length 0
21:51:25.361448 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4359, win 319, options [nop,nop,TS val 650157 ecr 3078174930], length 1448
21:51:25.620823 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4359, win 319, options [nop,nop,TS val 650183 ecr 3078174930], length 1448
21:51:26.140761 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4359, win 319, options [nop,nop,TS val 650235 ecr 3078174930], length 1448
21:51:27.180806 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4359, win 319, options [nop,nop,TS val 650339 ecr 3078174930], length 1448
21:51:29.260910 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4359, win 319, options [nop,nop,TS val 650547 ecr 3078174930], length 1448
21:51:33.430909 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4359, win 319, options [nop,nop,TS val 650964 ecr 3078174930], length 1448
21:51:41.771207 IP 192.168.12.90.40158 > ec2-34-253-86-226.eu-west-1.compute.amazonaws.com.443: Flags [.], seq 652:2100, ack 4359, win 319, options [nop,nop,TS val 651798 ecr 3078174930], length 1448