光猫日志提示[Warning] timertask: [alarm id:104001]The device reboots.是什么原因

巨大***

最近光猫改成桥接后发现隔一段时间拨号会掉线，然后只能改回光猫拨号；结果发现还是会掉线，查询了光猫的日志后发现是一个【定时器任务】导致的网络断开，log里显示的是设备重启 但实际应该是网络重启；因为如果是设备重启的话log是不会保存的。这会不会是isp下发的请求？要如何才能解决
日志：
2022-08-11 22:08:22 [Debug] syslog: [BMS daemon]: Platform finish TCP
2022-08-11 22:18:25 [Debug] syslog: [BMS daemon]: Platform finish TCP
2022-08-11 22:28:35 [Debug] syslog: [BMS daemon]: Platform finish TCP
2022-08-11 22:35:43 [Warning] timertask: [alarm id:104001]The device reboots.
2022-08-11 22:36:17 [Informational] WEB: FireWall : Disable
2022-08-11 22:36:22 [Informational] syslog: Initialize LCP.
2022-08-11 22:36:23 [Informational] WEB: FireWall : Disable
2022-08-11 22:36:28 [Informational] WEB: FireWall : Disable
2022-08-11 22:36:32 [Informational] syslog: LCP is allowed to come up.
2022-08-11 22:36:48 [Debug] syslog: [BMS daemon]: Platform finish TCP
2022-08-11 22:36:58 [Debug] syslog: [BMS daemon]: Platform finish TCP
2022-08-11 22:37:00 [Warning] timertask: [alarm id:104001]The device reboots.
2022-08-11 22:37:05 [Informational] WEB: WEB user <CMCCAdmin> login success
2022-08-11 22:37:10 [Informational] timertask: [alarm id:104032]Web user login success.

jinp***

或许是运营商那边的设备设置的定时重启