RT-AC3100(美版RT-AC88U)5G信号突然消失 求分析

boyzlf

某宝刚买了一周左右的RT-AC3100(美版RT-AC88U)，昨天晚上突然出现了两次5G信号消失的情况。希望有大神帮我分析一下。
买回路由器后一直没有仔细研究过。28日白天把时区从0改为北京(+8)。晚上19点56分左右电脑突然断网，发现没有5G信号，手机同时也找不到。切换为2.4G网络连上查看，5G无线网络显示是正常的。然后指定了161信道，保存后5G正常出现了。
夜里22:09(日志时间14:09)左右又出现一次。又把NTP，时区，信道设置了一下。29早上重启到目前没有状况出现，时间也正常不再跳来跳去，不知道是不是跟NTP没有设好有关。请大神分析。
固件是梅林v380.69_2-X7.8。 5G和2.4G分开的。

log如下：
Feb 28 10:52:35 sd-idle-2.6[488]: spinning down /dev/sda after 20 mins
Feb 28 11:00:05 sd-idle-2.6[488]: spinning up /dev/sda after 7 mins 30 secs
Feb 28 11:26:01 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.202 74:c1:4f:91:3f:82
Feb 28 11:26:01 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.202 74:c1:4f:91:3f:82 HUAWEI_nova_3i-4920456229
Feb 28 11:26:01 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.202 74:c1:4f:91:3f:82
Feb 28 11:26:01 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.202 74:c1:4f:91:3f:82 HUAWEI_nova_3i-4920456229
Feb 28 19:34:28 miniupnpd[20036]: remove port mapping 38255 UDP because it has expired
Feb 28 11:36:53 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.202 74:c1:4f:91:3f:82
Feb 28 11:36:53 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.202 74:c1:4f:91:3f:82 HUAWEI_nova_3i-4920456229
Feb 28 11:36:53 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.202 74:c1:4f:91:3f:82
Feb 28 11:36:53 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.202 74:c1:4f:91:3f:82 HUAWEI_nova_3i-4920456229
Feb 28 11:54:32 dnsmasq-dhcp[584]: DHCPDISCOVER(br0) 14:ab:c5:8d:72:0f
Feb 28 11:54:32 dnsmasq-dhcp[584]: DHCPOFFER(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 11:54:32 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 11:54:32 dnsmasq-dhcp[584]: Ignoring domain global.hitachi.net for DHCP host name GUcnH490SH00156
Feb 28 11:54:32 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 11:56:01 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 11:56:01 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 11:56:01 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 11:56:01 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 19:56:06 rc_service: httpd 591:notify_rc restart_wireless
Feb 28 19:56:10 kernel: dhd_detach(): thread:dhd_watchdog_thread:19a terminated OK
Feb 28 19:56:10 kernel: dhd_detach(): thread:dhd_watchdog_thread:194 terminated OK
Feb 28 19:56:15 kernel: PCI_PROBE:  bus 1, slot 0,vendor 14E4, device 4365(good PCI location)
Feb 28 19:56:15 kernel: dhd_attach(): thread:dhd_watchdog_thread:69ed started
Feb 28 19:56:16 kernel: Dongle Host Driver, version 1.363.45.58013 (r651509)
Feb 28 19:56:16 kernel: Compiled in drivers/net/wireless/bcmdhd on Jun 15 2017 at 08:42:46
Feb 28 19:56:16 kernel: Register interface [eth1]  MAC: 4c:ed:fb:ae:55:30
Feb 28 19:56:16 kernel: PCI_PROBE:  bus 1, slot 0,vendor 14E4, device 4365(good PCI location)
Feb 28 19:56:16 kernel: dhd_attach(): thread:dhd_watchdog_thread:69f3 started
Feb 28 19:56:16 kernel: Dongle Host Driver, version 1.363.45.58013 (r651509)
Feb 28 19:56:16 kernel: Compiled in drivers/net/wireless/bcmdhd on Jun 15 2017 at 08:42:46
Feb 28 19:56:16 kernel: Register interface [eth2]  MAC: 4c:ed:fb:ae:55:34
Feb 28 11:56:22 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 11:56:22 dnsmasq-dhcp[584]: Ignoring domain global.hitachi.net for DHCP host name GUcnH490SH00156
Feb 28 11:56:22 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 11:56:22 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.105 14:2d:27:13:09:79
Feb 28 11:56:22 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.105 14:2d:27:13:09:79
Feb 28 11:56:24 dnsmasq-dhcp[584]: DHCPDISCOVER(br0) 48:a1:95:41:52:49
Feb 28 11:56:24 dnsmasq-dhcp[584]: DHCPOFFER(br0) 192.168.2.172 48:a1:95:41:52:49
Feb 28 11:56:26 dnsmasq-dhcp[584]: DHCPDISCOVER(br0) 48:a1:95:41:52:49
Feb 28 11:56:26 dnsmasq-dhcp[584]: DHCPOFFER(br0) 192.168.2.172 48:a1:95:41:52:49
Feb 28 11:56:27 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.172 48:a1:95:41:52:49
Feb 28 11:56:27 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.172 48:a1:95:41:52:49 iPhone
Feb 28 11:56:28 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.124 6c:b7:49:99:1b:9c
Feb 28 11:56:28 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.124 6c:b7:49:99:1b:9c HUAWEI_Mate_10-426ab4d015
Feb 28 11:56:28 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.124 6c:b7:49:99:1b:9c
Feb 28 11:56:28 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.124 6c:b7:49:99:1b:9c HUAWEI_Mate_10-426ab4d015
Feb 28 11:56:41 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 11:56:41 dnsmasq-dhcp[584]: Ignoring domain global.hitachi.net for DHCP host name GUcnH490SH00156
Feb 28 11:56:41 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 11:57:24 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 11:57:24 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 11:57:24 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 11:57:24 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 12:00:32 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 12:00:32 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 12:00:32 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 12:00:32 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 12:03:23 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 12:03:23 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 12:03:23 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 12:03:23 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 12:06:53 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 12:06:53 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 12:06:53 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 12:06:53 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 12:09:05 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 12:09:05 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 12:09:05 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 12:09:05 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 20:10:07 syslogd started: BusyBox v1.25.1
Feb 28 20:10:07 kernel: klogd started: BusyBox v1.25.1 (2018-03-22 00:31:10 CST)
Feb 28 20:10:07 start_nat_rules: apply the nat_rules(/tmp/nat_rules_ppp0_eth0)!
Feb 28 20:10:07 custom_script: Found nat-start, but custom script execution is disabled!
Feb 28 20:10:07 miniupnpd[27464]: HTTP listening on port 59625
Feb 28 20:10:07 miniupnpd[27464]: Listening for NAT-PMP/PCP traffic on port 5351
Feb 28 20:10:07 miniupnpd[27464]: shutting down MiniUPnPd
Feb 28 20:10:08 miniupnpd[27467]: HTTP listening on port 49817
Feb 28 20:10:08 miniupnpd[27467]: Listening for NAT-PMP/PCP traffic on port 5351
Feb 28 20:10:08 hour_monitor: daemon is starting
Feb 28 20:10:08 hour_monitor: daemon terminates
Feb 28 12:13:05 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 12:13:05 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 12:13:05 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 12:13:05 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 12:17:08 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 12:17:08 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 12:17:08 dnsmasq-dhcp[584]: DHCPINFORM(br0) 192.168.2.104 14:ab:c5:8d:72:0f
Feb 28 12:17:08 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.104 14:ab:c5:8d:72:0f GUcnH490SH00156
Feb 28 20:19:51 syslogd started: BusyBox v1.25.1
Feb 28 20:19:51 kernel: klogd started: BusyBox v1.25.1 (2018-03-22 00:31:10 CST)
Feb 28 20:19:51 start_nat_rules: apply the nat_rules(/tmp/nat_rules_ppp0_eth0)!
Feb 28 20:19:51 custom_script: Found nat-start, but custom script execution is disabled!
Feb 28 20:19:52 miniupnpd[27661]: HTTP listening on port 36311
Feb 28 20:19:52 miniupnpd[27661]: Listening for NAT-PMP/PCP traffic on port 5351
Feb 28 20:19:52 miniupnpd[27661]: shutting down MiniUPnPd
Feb 28 20:19:52 miniupnpd[27664]: HTTP listening on port 50205
Feb 28 20:19:52 miniupnpd[27664]: Listening for NAT-PMP/PCP traffic on port 5351
Feb 28 20:19:52 hour_monitor: daemon is starting
Feb 28 20:19:52 hour_monitor: daemon terminates
Feb 28 20:35:01 miniupnpd[27664]: remove port mapping 33592 UDP because it has expired
Feb 28 13:31:05 dnsmasq-dhcp[584]: DHCPDISCOVER(br0) 28:76:cd:d7:b9:11
Feb 28 13:31:05 dnsmasq-dhcp[584]: DHCPOFFER(br0) 192.168.2.173 28:76:cd:d7:b9:11
Feb 28 13:31:05 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.173 28:76:cd:d7:b9:11
Feb 28 13:31:05 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.173 28:76:cd:d7:b9:11 funtv-7cec9bc2a81688e8
Feb 28 14:03:33 dnsmasq-dhcp[584]: DHCPDISCOVER(br0) 48:a1:95:41:52:49
Feb 28 14:03:33 dnsmasq-dhcp[584]: DHCPOFFER(br0) 192.168.2.172 48:a1:95:41:52:49
Feb 28 14:03:34 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.172 48:a1:95:41:52:49
Feb 28 14:03:34 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.172 48:a1:95:41:52:49 iPhone
Feb 28 14:04:29 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.124 6c:b7:49:99:1b:9c
Feb 28 14:04:29 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.124 6c:b7:49:99:1b:9c HUAWEI_Mate_10-426ab4d015
Feb 28 14:04:29 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.124 6c:b7:49:99:1b:9c
Feb 28 14:04:29 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.124 6c:b7:49:99:1b:9c HUAWEI_Mate_10-426ab4d015
Feb 28 14:06:56 syslogd started: BusyBox v1.25.1
Feb 28 14:06:56 kernel: klogd started: BusyBox v1.25.1 (2018-03-22 00:31:10 CST)
Feb 28 14:06:56 start_nat_rules: apply the nat_rules(/tmp/nat_rules_ppp0_eth0)!
Feb 28 14:06:56 custom_script: Found nat-start, but custom script execution is disabled!
Feb 28 14:06:56 miniupnpd[29069]: HTTP listening on port 44466
Feb 28 14:06:56 miniupnpd[29069]: Listening for NAT-PMP/PCP traffic on port 5351
Feb 28 14:06:56 miniupnpd[29069]: shutting down MiniUPnPd
Feb 28 14:06:56 miniupnpd[29072]: HTTP listening on port 59361
Feb 28 14:06:56 miniupnpd[29072]: Listening for NAT-PMP/PCP traffic on port 5351
Feb 28 14:06:57 hour_monitor: daemon is starting
Feb 28 14:06:57 hour_monitor: daemon terminates
Feb 28 14:09:00 rc_service: httpd 591:notify_rc restart_wireless
Feb 28 14:09:04 kernel: dhd_detach(): thread:dhd_watchdog_thread:69f3 terminated OK
Feb 28 14:09:04 kernel: dhd_detach(): thread:dhd_watchdog_thread:69ed terminated OK
Feb 28 14:09:08 kernel: PCI_PROBE:  bus 1, slot 0,vendor 14E4, device 4365(good PCI location)
Feb 28 14:09:09 kernel: dhd_attach(): thread:dhd_watchdog_thread:720c started
Feb 28 14:09:09 kernel: Dongle Host Driver, version 1.363.45.58013 (r651509)
Feb 28 14:09:09 kernel: Compiled in drivers/net/wireless/bcmdhd on Jun 15 2017 at 08:42:46
Feb 28 14:09:09 kernel: Register interface [eth1]  MAC: 4c:ed:fb:ae:55:30
Feb 28 14:09:09 kernel: PCI_PROBE:  bus 1, slot 0,vendor 14E4, device 4365(good PCI location)
Feb 28 14:09:09 kernel: dhd_attach(): thread:dhd_watchdog_thread:7212 started
Feb 28 14:09:10 kernel: Dongle Host Driver, version 1.363.45.58013 (r651509)
Feb 28 14:09:10 kernel: Compiled in drivers/net/wireless/bcmdhd on Jun 15 2017 at 08:42:46
Feb 28 14:09:10 kernel: Register interface [eth2]  MAC: 4c:ed:fb:ae:55:34
Feb 28 14:09:19 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.124 6c:b7:49:99:1b:9c
Feb 28 14:09:19 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.124 6c:b7:49:99:1b:9c HUAWEI_Mate_10-426ab4d015
Feb 28 14:09:19 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.124 6c:b7:49:99:1b:9c
Feb 28 14:09:19 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.124 6c:b7:49:99:1b:9c HUAWEI_Mate_10-426ab4d015
Feb 28 14:09:26 dnsmasq-dhcp[584]: DHCPDISCOVER(br0) 48:a1:95:41:52:49
Feb 28 14:09:26 dnsmasq-dhcp[584]: DHCPOFFER(br0) 192.168.2.172 48:a1:95:41:52:49
Feb 28 14:09:27 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.172 48:a1:95:41:52:49
Feb 28 14:09:27 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.172 48:a1:95:41:52:49 iPhone
Feb 28 14:10:07 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.124 6c:b7:49:99:1b:9c
Feb 28 14:10:07 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.124 6c:b7:49:99:1b:9c HUAWEI_Mate_10-426ab4d015
Feb 28 14:10:07 dnsmasq-dhcp[584]: DHCPREQUEST(br0) 192.168.2.124 6c:b7:49:99:1b:9c
Feb 28 14:10:07 dnsmasq-dhcp[584]: DHCPACK(br0) 192.168.2.124 6c:b7:49:99:1b:9c HUAWEI_Mate_10-426ab4d015
Feb 28 22:43:42 syslogd started: BusyBox v1.25.1
Feb 28 22:43:42 kernel: klogd started: BusyBox v1.25.1 (2018-03-22 00:31:10 CST)
Feb 28 22:43:42 start_nat_rules: apply the nat_rules(/tmp/nat_rules_ppp0_eth0)!
Feb 28 22:43:43 custom_script: Found nat-start, but custom script execution is disabled!
Feb 28 22:43:43 miniupnpd[29797]: HTTP listening on port 43975
Feb 28 22:43:43 miniupnpd[29797]: Listening for NAT-PMP/PCP traffic on port 5351
Feb 28 22:43:43 miniupnpd[29797]: shutting down MiniUPnPd
Feb 28 22:43:43 miniupnpd[29800]: HTTP listening on port 44072
Feb 28 22:43:43 miniupnpd[29800]: Listening for NAT-PMP/PCP traffic on port 5351
Feb 28 22:43:43 hour_monitor: daemon is starting
Feb 28 22:43:43 hour_monitor: daemon terminates

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luyong1005

估计芯片挂了