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Failover issue - Switching to other ISP took about 2-3 minutes to get back our internet

lgfamisanlgfamisan Newbie ✭
in Entry Level Firewalls

We are using Sonicwall NGFW TZ570. We only have issue when using the firewall when it comes to failover and load balancing. It turned out that it can't handle to switch on the other WAN interface that are working ( we are using 2 ISPs for redundancy and failover). It would take 2-3 minutes in order to get back our internet. We already tried different action for load balancing ( basic failover, spill-over, round robin, ratio) but none of them worked. Can they help us regarding for this issue?

Category: Entry Level Firewalls
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Answers

  • ArkwrightArkwright Community Legend ✭✭✭✭✭

    Can you use both WANs simultaneously in normal operation [ratio mode]?

    Do you have logical probing configured?

  • lgfamisanlgfamisan Newbie ✭

    We are currently using ratio mode, each WAN modified ratio by 50% ( see the image below)

    isp1.png

    Here are the WANs that are logical probing configured:

    isp2.png
    isp3.png

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