Question

RUT950 with RUT9_R_00.07.02.3

Every day around same time seeing:
2022-08-22 21:11:45     Failover     Switched to backup WAN (mob1s2a1)
2022-08-22 21:11:41     Mobile Data     Mobile data connected (internal modem)
2022-08-22 21:11:41     Network Type     Joined FDD LTE network (internal modem)
2022-08-22 21:11:41     Network Operator     Connected to Tele2 NL Tele2 NL operator (internal modem)
2022-08-22 21:11:08     Mobile Data     Mobile data disconnected (internal modem)
2022-08-22 21:10:58     Failover     WAN (mob1s2a1) is down, no more backups to switch

There is just one SIMcard which is currently in slot-2 (mob1s2a1).

Answer 1

Hello,

Do you have failover, crontabs or scheduled tasks configured, could you provide a complete troubleshoot file?

Best regards,

Comments

Failover configured yes; between WiFi-client and Mobile. But WiFi-client is disabled atm because together with running WiFi-AP makes the router unstable. I have several topics open for this problem and have discussed with you as well.

Have send you a fresh support file.

I have not touched crontab or in any other way have scheduled tasks running.

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Regarding your mobile disconnects, they happen approximately at 21:10. What happens at this moment, is your device gets assigned with a new Public IP (it's actually under CGNAT) address by your ISP and takes about 1 minute to reconnect to the network. This is not a device issue.

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That it happens at 21:10 is no news, that is visible in the log.

But at that time the log shows "Mobile data disconnected (internal modem) ", which looks to me "internal modem" is doing something. Why would an ISP assign a new IP? Isn't the router using dhcp for this and initiating a renewal?

Edit:
In "General Settings" for the mobile interface the protocol is (default) "Mobile". I have no idea what that means. Amongst other options is also "DHCP". Sound more logical to me, but I'm no expert.

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The Mobile protocol is used to give you the template to set up an interface, which can establish a mobile WAN connection.

Public, and specifically static public, IPs are not always available in some regions or by some providers due to the shortage of IPv4 addresses, that is why some providers settle for dynamic IPs assignment.

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Ok, thanks for explaining.
Last night it happened again, same time:
2022-08-23 21:11:51     Failover     Switched to backup WAN (mob1s2a1)
2022-08-23 21:11:46     Mobile Data     Mobile data connected (internal modem)
2022-08-23 21:11:46     Network Type     Joined FDD LTE network (internal modem)
2022-08-23 21:11:46     Network Operator     Connected to Tele2 NL Tele2 NL operator (internal modem)
2022-08-23 21:11:12     Mobile Data     Mobile data disconnected (internal modem)
2022-08-23 21:11:03     Failover     WAN (mob1s2a1) is down, no more backups to switch