@TP-Link
Hi there. Thanks for the reply.
I've done the following tests as requested.
Test: Added DNS servers into the router of 8.8.8.8 and 8.8.4.4.
Result: No change in behaviour (disconnecting minimum of twice a day.)
Test: Turn off and on mobile data and click save.
Result: Connection isn't reestablished.
Can't attach log so I've copy and pasted some of it from dijust before the first logged timeout. This includes the disabling and reenabling of mobile data.
2021-03-21 18:37:41 [7] DHCPC: Send REQUEST to server 10.158.139.14 with request ip 10.158.139.13
2021-03-21 18:37:41 [7] DHCPC: Recv ACK from server 10.158.139.14 with ip 10.158.139.13 lease time 7200
2021-03-21 18:38:34 [6] System: Device(28:B2:BD:56:2D:68) joins in 5G Wlan
2021-03-21 18:38:34 [5] DHCPD: Recv DISCOVER from 28:B2:BD:56:2D:68
2021-03-21 18:38:34 [5] DHCPD: Send OFFER with ip 192.168.1.110
2021-03-21 18:38:35 [5] DHCPD: Recv REQUEST from 28:B2:BD:56:2D:68
2021-03-21 18:38:35 [5] DHCPD: Send ACK to 192.168.1.110
2021-03-21 18:38:53 [6] System: Device(28:B2:BD:56:2D:68) leaves 5G Wlan
2021-03-21 18:38:56 [6] System: Device(28:B2:BD:56:2D:68) joins in 2.4G Wlan
2021-03-21 18:38:56 [5] DHCPD: Recv REQUEST from 28:B2:BD:56:2D:68
2021-03-21 18:38:56 [5] DHCPD: Send ACK to 192.168.1.110
2021-03-21 18:39:29 [5] DHCPD: Recv REQUEST from C8:2A:14:42:4B:A2
2021-03-21 18:39:29 [5] DHCPD: Send ACK to 192.168.1.106
2021-03-21 18:40:00 [6] System: Device(28:B2:BD:56:2D:68) leaves 2.4G Wlan
2021-03-21 18:40:01 [5] DHCPD: Recv DISCOVER from 28:D2:44:F0:A0:ED
2021-03-21 18:40:01 [5] DHCPD: Send OFFER with ip 192.168.1.112
2021-03-21 18:40:01 [5] DHCPD: Recv REQUEST from 28:D2:44:F0:A0:ED
2021-03-21 18:40:02 [5] DHCPD: Send ACK to 192.168.1.112
2021-03-21 18:40:46 [6] System: User(28:D2:44:F0:A0:ED) logs in.
2021-03-21 18:40:56 [5] DHCPD: Recv REQUEST from 28:D2:44:F0:A0:ED
2021-03-21 18:40:56 [5] DHCPD: Send ACK to 192.168.1.112
2021-03-21 18:41:12 [6] Httpd: DNS 212.27.40.241 resolve timeout for dns.msftncsi.com
2021-03-21 18:41:14 [6] Httpd: DNS 8.8.8.8 resolve timeout for dns.msftncsi.com
2021-03-21 18:41:27 [6] Httpd: DNS 212.27.40.241 resolve timeout for dns.msftncsi.com
2021-03-21 18:41:29 [6] Httpd: DNS 8.8.8.8 resolve timeout for dns.msftncsi.com
2021-03-21 18:41:31 [6] 4G: USER: Start disconnecting from the network!
2021-03-21 18:41:31 [5] 4G: dataSwitch: 0
2021-03-21 18:41:32 [6] Httpd: DNS 212.27.40.241 resolve timeout for dns.msftncsi.com
2021-03-21 18:41:32 [6] 4G: USER: Disconnected from the network!
2021-03-21 18:41:33 [5] 4G: lte internet disconnected.
2021-03-21 18:41:33 [6] 4G: LTE connection down
2021-03-21 18:41:34 [5] 4G: Send a RS on wwan0
2021-03-21 18:41:34 [6] Httpd: DNS 8.8.8.8 resolve timeout for dns.msftncsi.com
2021-03-21 18:42:03 [5] DHCPD: Recv REQUEST from 28:D2:44:F0:A0:ED
2021-03-21 18:42:03 [5] DHCPD: Send ACK to 192.168.1.112
2021-03-21 18:42:29 [5] DHCPD: Recv REQUEST from 28:D2:44:F0:A0:ED
2021-03-21 18:42:29 [5] DHCPD: Send ACK to 192.168.1.112
2021-03-21 18:44:36 [6] 4G: USER: Get user's profile now.
2021-03-21 18:44:36 [6] 4G: USER: GetCurrProf result is: ipver:2 staticApn:0 authType:0 pkgName:free_mobile profname:free_mobile apn:free usr: psw:
2021-03-21 18:44:36 [6] 4G: USER: Start connecting to the network!
2021-03-21 18:44:36 [6] 4G: ERROR: Bind mux port session 0 failed (0).
2021-03-21 18:44:36 [6] 4G: ERROR: Bind mux port session 1 failed (0).
2021-03-21 18:44:36 [5] 4G: dataSwitch: 1
2021-03-21 18:44:38 [6] 4G: USER: Connected to the network!
2021-03-21 18:44:38 [6] 4G: ERROR: 0x0000004A QMI_ERR_INFO_UNAVAILABLE
2021-03-21 18:44:38 [6] 4G: ERROR: result=1, error=74
2021-03-21 18:44:38 [6] 4G: ERROR: QMI NAS Get PHY CA Info failed, ret = 0.
2021-03-21 18:44:38 [6] 4G: ERROR: 0x0000000E QMI_ERR_CALL_FAILED
2021-03-21 18:44:38 [6] 4G: ERROR: Call end reason = 1.
2021-03-21 18:44:38 [6] 4G: ERROR: Verbose Call end reason = 210, type = 2.
2021-03-21 18:44:41 [6] 4G: USER: Get user's profile now.
2021-03-21 18:44:41 [6] 4G: USER: GetCurrProf result is: ipver:2 staticApn:0 authType:0 pkgName:free_mobile profname:free_mobile apn:free usr: psw:
2021-03-21 18:44:41 [5] 4G: set LTE static IP connection, needSetDefaultGw:1
2021-03-21 18:44:42 [6] 4G: LTE connection up
2021-03-21 18:44:42 [5] 4G: LTE internet connected.
2021-03-21 18:44:42 [5] 4G: Send a RS on wwan0
2021-03-21 18:44:46 [6] Httpd: DNS 212.27.40.240 resolve timeout for dns.msftncsi.com
2021-03-21 18:44:48 [6] Httpd: DNS 8.8.8.8 resolve timeout for dns.msftncsi.com
2021-03-21 18:44:51 [6] Httpd: DNS 212.27.40.240 resolve timeout for dns.msftncsi.com
2021-03-21 18:44:53 [6] Httpd: DNS 8.8.8.8 resolve timeout for dns.msftncsi.com
2021-03-21 18:44:56 [6] Httpd: DNS 212.27.40.241 resolve timeout for dns.msftncsi.com
2021-03-21 18:44:58 [6] Httpd: DNS 8.8.8.8 resolve timeout for dns.msftncsi.com
2021-03-21 18:45:02 [6] Httpd: DNS 212.27.40.241 resolve timeout for dns.msftncsi.com
2021-03-21 18:45:04 [6] Httpd: DNS 8.8.8.8 resolve timeout for dns.msftncsi.com
2021-03-21 18:45:19 [6] Httpd: DNS 212.27.40.241 resolve timeout for dns.msftncsi.com
2021-03-21 18:45:21 [6] Httpd: DNS 8.8.8.8 resolve timeout for dns.msftncsi.com
2021-03-21 18:45:24 [6] Httpd: DNS 212.27.40.241 resolve timeout for dns.msftncsi.com
2021-03-21 18:45:26 [6] Httpd: DNS 8.8.8.8 resolve timeout for dns.msftncsi.com
2021-03-21 18:45:30 [6] Httpd: DNS 212.27.40.241 resolve timeout for dns.msftncsi.com
2021-03-21 18:45:32 [6] Httpd: DNS 8.8.8.8 resolve timeout for dns.msftncsi.com
2021-03-21 18:45:35 [6] Httpd: DNS 212.27.40.241 resolve timeout for dns.msftncsi.com
2021-03-21 18:45:37 [6] Httpd: DNS 8.8.8.8 resolve timeout for dns.msftncsi.com