I have compiled another image and I face the same problem, is it the fault of the script I am running?
:46:22 2021 kern.info kernel: [91375.228220] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:46:22 2021 kern.info kernel: [91375.234364] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:46:25 2021 kern.info kernel: [91378.235588] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:46:25 2021 kern.info kernel: [91378.244208] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:46:25 2021 kern.info kernel: [91378.249460] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:46:25 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:46:39 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:46:39 2021 kern.info kernel: [91391.427630] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:46:39 2021 kern.info kernel: [91391.433444] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:46:42 2021 kern.info kernel: [91394.323220] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:46:42 2021 kern.info kernel: [91394.331825] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:46:42 2021 kern.info kernel: [91394.337075] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:46:42 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:46:55 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:46:55 2021 kern.info kernel: [91407.515293] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:46:55 2021 kern.info kernel: [91407.521205] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:46:58 2021 kern.info kernel: [91410.452945] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:46:58 2021 kern.info kernel: [91410.461551] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:46:58 2021 kern.info kernel: [91410.466802] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:46:58 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:47:11 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:47:11 2021 kern.info kernel: [91423.714960] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:47:11 2021 kern.info kernel: [91423.720778] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:47:14 2021 kern.info kernel: [91426.614675] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:47:14 2021 kern.info kernel: [91426.623288] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:47:14 2021 kern.info kernel: [91426.628539] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:47:14 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:47:27 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:47:27 2021 kern.info kernel: [91439.816833] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:47:27 2021 kern.info kernel: [91439.822654] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:47:30 2021 kern.info kernel: [91442.764363] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:47:30 2021 kern.info kernel: [91442.772948] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:47:30 2021 kern.info kernel: [91442.778197] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:47:30 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:47:43 2021 kern.info kernel: [91455.996518] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:47:43 2021 kern.info kernel: [91456.002341] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:47:43 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:47:46 2021 kern.info kernel: [91458.894055] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:47:46 2021 kern.info kernel: [91458.902643] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:47:46 2021 kern.info kernel: [91458.907894] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:47:46 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:47:59 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:47:59 2021 kern.info kernel: [91472.066223] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:47:59 2021 kern.info kernel: [91472.072042] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:48:02 2021 kern.info kernel: [91475.083744] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:48:02 2021 kern.info kernel: [91475.092349] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:48:02 2021 kern.info kernel: [91475.097602] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:48:02 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:48:16 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:48:16 2021 kern.info kernel: [91488.293913] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:48:16 2021 kern.info kernel: [91488.299777] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:48:18 2021 kern.info kernel: [91491.241373] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:48:18 2021 kern.info kernel: [91491.249999] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:48:18 2021 kern.info kernel: [91491.255256] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:48:18 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:48:32 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:48:32 2021 kern.info kernel: [91504.383472] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:48:32 2021 kern.info kernel: [91504.389302] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:48:35 2021 kern.info kernel: [91507.393131] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:48:35 2021 kern.info kernel: [91507.401720] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:48:35 2021 kern.info kernel: [91507.406969] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:48:35 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:48:48 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:48:48 2021 kern.info kernel: [91520.605276] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:48:48 2021 kern.info kernel: [91520.611096] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:48:51 2021 kern.info kernel: [91523.522824] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:48:51 2021 kern.info kernel: [91523.531417] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:48:51 2021 kern.info kernel: [91523.536668] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:48:51 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:49:04 2021 kern.info kernel: [91536.715056] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:49:04 2021 kern.info kernel: [91536.720953] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:49:04 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:49:07 2021 kern.info kernel: [91539.682537] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:49:07 2021 kern.info kernel: [91539.691214] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:49:07 2021 kern.info kernel: [91539.696466] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:49:07 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:49:20 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:49:20 2021 kern.info kernel: [91552.884684] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:49:20 2021 kern.info kernel: [91552.890577] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:49:23 2021 kern.info kernel: [91555.852209] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:49:23 2021 kern.info kernel: [91555.861084] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:49:23 2021 kern.info kernel: [91555.866335] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:49:23 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:49:36 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:49:36 2021 kern.info kernel: [91568.944289] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:49:36 2021 kern.info kernel: [91568.950159] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:49:39 2021 kern.info kernel: [91572.131892] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:49:39 2021 kern.info kernel: [91572.140493] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:49:39 2021 kern.info kernel: [91572.145746] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:49:39 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:49:52 2021 kern.info kernel: [91585.109845] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:49:52 2021 kern.info kernel: [91585.115653] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:49:52 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:49:55 2021 kern.info kernel: [91588.081592] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:49:55 2021 kern.info kernel: [91588.090178] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:49:55 2021 kern.info kernel: [91588.095433] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:49:55 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:50:09 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:50:09 2021 kern.info kernel: [91601.283637] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:50:09 2021 kern.info kernel: [91601.289463] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:50:12 2021 kern.info kernel: [91604.691338] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:50:12 2021 kern.info kernel: [91604.699933] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:50:12 2021 kern.info kernel: [91604.705183] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:50:12 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:50:25 2021 kern.info kernel: [91617.451279] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:50:25 2021 kern.info kernel: [91617.457098] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:50:25 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:50:28 2021 kern.info kernel: [91620.308918] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:50:28 2021 kern.info kernel: [91620.317514] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:50:28 2021 kern.info kernel: [91620.322766] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:50:28 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:50:41 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:50:41 2021 kern.info kernel: [91633.510980] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:50:41 2021 kern.info kernel: [91633.516818] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:50:44 2021 kern.info kernel: [91636.370749] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:50:44 2021 kern.info kernel: [91636.379359] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:50:44 2021 kern.info kernel: [91636.384611] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:50:44 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:50:57 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:50:57 2021 kern.info kernel: [91649.682712] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:50:57 2021 kern.info kernel: [91649.688529] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:51:00 2021 kern.info kernel: [91652.976228] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:51:00 2021 kern.info kernel: [91652.984822] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:51:00 2021 kern.info kernel: [91652.990082] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:51:00 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:51:13 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:51:13 2021 kern.info kernel: [91665.810346] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:51:13 2021 kern.info kernel: [91665.816162] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:51:16 2021 kern.info kernel: [91668.787997] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:51:16 2021 kern.info kernel: [91668.796585] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:51:16 2021 kern.info kernel: [91668.801835] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:51:16 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:51:29 2021 kern.info kernel: [91682.012196] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:51:29 2021 kern.info kernel: [91682.018033] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:51:29 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:51:32 2021 kern.info kernel: [91684.979746] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:51:32 2021 kern.info kernel: [91684.988400] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:51:32 2021 kern.info kernel: [91684.993652] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:51:32 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:51:45 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:51:45 2021 kern.info kernel: [91698.179782] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:51:45 2021 kern.info kernel: [91698.185667] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:51:48 2021 kern.info kernel: [91701.149434] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:51:48 2021 kern.info kernel: [91701.158027] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:51:48 2021 kern.info kernel: [91701.163277] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:51:48 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:52:01 2021 kern.info kernel: [91714.237696] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:52:01 2021 kern.info kernel: [91714.243510] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:52:01 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:52:05 2021 kern.info kernel: [91717.317067] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:52:05 2021 kern.info kernel: [91717.325655] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:52:05 2021 kern.info kernel: [91717.330905] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:52:05 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:52:18 2021 kern.info kernel: [91730.409129] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:52:18 2021 kern.info kernel: [91730.414961] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:52:18 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:52:21 2021 kern.info kernel: [91733.268831] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:52:21 2021 kern.info kernel: [91733.277524] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:52:21 2021 kern.info kernel: [91733.282777] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:52:21 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:52:34 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:52:34 2021 kern.info kernel: [91746.580865] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:52:34 2021 kern.info kernel: [91746.586691] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:52:37 2021 kern.info kernel: [91749.438543] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:52:37 2021 kern.info kernel: [91749.447139] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:52:37 2021 kern.info kernel: [91749.452389] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:52:37 2021 daemon.notice netifd: Network device 'lan1' link is up
Mon Sep 27 08:52:50 2021 daemon.notice netifd: Network device 'lan1' link is down
Mon Sep 27 08:52:50 2021 kern.info kernel: [91762.640593] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Down
Mon Sep 27 08:52:50 2021 kern.info kernel: [91762.646425] br-lan: port 1(lan1) entered disabled state
Mon Sep 27 08:52:53 2021 kern.info kernel: [91765.608222] mv88e6085 f1072004.mdio-mii:00 lan1: Link is Up - 1Gbps/Full - flow control rx/tx
Mon Sep 27 08:52:53 2021 kern.info kernel: [91765.616831] br-lan: port 1(lan1) entered blocking state
Mon Sep 27 08:52:53 2021 kern.info kernel: [91765.622082] br-lan: port 1(lan1) entered forwarding state
Mon Sep 27 08:52:53 2021 daemon.notice netifd: Network device 'lan1' link is up