Smart Link Backup Not Switching to secondary wan when primary fails

[SubbaMe]

I have RV042 10/100 4-Port VPN Router and I have set up dual WAN to Smart Link Backup and WAN1 as primary.

WAN1 Configuration Details:

Upstream : 12500 Kbit/Sec

Downstream: 12500 Kbit/Sec

Enable Network Service Detection : Checked

Retry count : 5

Retry timeout : 30 seconds

When Fail : Keep System Log and Remove the Connection

Default Gateway : Checked

ISP Host : Unchecked

Remote Host : Checked and set to 8.8.8.8

DNS Lookup Host : Checked and set to google.com

WAN2 Configuration Details:

Upstream : 12500 Kbit/Sec

Downstream: 12500 Kbit/Sec

Enable Network Service Detection : Checked

Retry count : 5

Retry timeout : 30 seconds

When Fail : Keep System Log and Remove the Connection

Default Gateway : Checked

ISP Host : Unchecked

Remote Host : Checked and set to 8.8.8.8

DNS Lookup Host : Checked and set to cisco.com

The issue is that it does not switch to WAN2 when WAN1 is offline and ping to 8.8.8.8 returns Request Timed Out.

My Device Details:
RV042 10/100 4-Port VPN Router
Firmware Version: v4.2.3.14

I have tried rebooting reconfiguring and still, it does not work as expected. Any kindly of help will be highly appreciated. Thank you.

[balaji.bandi]

this may not be great help but if you not come across check the config again.

https://www.cisco.com/c/en/us/support/docs/smb/routers/cisco-rv-series-small-business-routers/smb2985-configure-smart-link-backup-failover-on-rv042-rv042g-and-rv0.html

Other test, you can flip the WAN2 as primary and WAN1 as back and test if that works ?

suggest to post screenshot of configs

[Sujoy Paria]

Hi,

Please uncheck the ‘Default Gateway’ option, reduce the ‘Retry Count’ to 3 and ‘Retry Timeout’ to 3 seconds.

After that, please make sure both the Internet links are working fine individually and accordingly verify the Smart Link back up option. I hope it will work.

Once both the WAN links are up that time shut down one WAN connectivity, Internet should work fine via the other WAN link.