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ER605: Load Balancing and Failover - Possible?

ER605: Load Balancing and Failover - Possible?

ER605: Load Balancing and Failover - Possible?
ER605: Load Balancing and Failover - Possible?
2025-06-08 03:56:40 - last edited 2025-06-09 01:12:25
Tags: #Load Balancing
Model: ER605 (TL-R605)  
Hardware Version: V2
Firmware Version: 2.2.6 Build 20240718 Rel.82712

Dear experts,

 

first of all: I think the ER605 is an amazing piece of network hardware with the best firmware I've seen so far in this price-range. Thank you for that!

 

Now my question: I have a PPoE Fibre Connection on WAN and a Dynamic IP connection to Starlink on WAN/LAN1. I set up the bandwiths for RX/TX on both and activated load-balancing. My observation is: It works.

Now the reason why I bought Starlink is that every now and then the fibre connection has an outage (once a year), then NTT comes for repair (often a squirrel or a branch of a tree cut the line) and that means up to 1 week no internet. I also turn off Starlink at night because it makes noise and I don't need it since I sleep. laugh

 

I have not made any settings in "Link Backup", I added manual entries in "Online Detection" (Google DNS IPs), though. 

 

What is the correct setting for this scenario? Currently I found if Starlink goes to a planned offline, I need to refresh a browser page multiple times until I see something and images are not shown (I guess that's where the load balancing tries to access Starlink).

 

Curious to get some insights! Thanks!

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Re:ER605: Load Balancing and Failover - Possible?-Solution
2025-06-09 01:12:21 - last edited 2025-06-09 01:12:25

  @SkyeGu 

We don't and cannot control the Starlink from its LAN port. Which means this has nothing to do with the ER605 load balancing.

Consider Starlink configured with the Time Schedule, which turns it on and off during the day and night.

Load balance does not control the WAN ports on itself(in this case, ER605).

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Re:ER605: Load Balancing and Failover - Possible?-Solution
2025-06-09 01:12:21 - last edited 2025-06-09 01:12:25

  @SkyeGu 

We don't and cannot control the Starlink from its LAN port. Which means this has nothing to do with the ER605 load balancing.

Consider Starlink configured with the Time Schedule, which turns it on and off during the day and night.

Load balance does not control the WAN ports on itself(in this case, ER605).

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Re:ER605: Load Balancing and Failover - Possible?
2025-06-09 23:45:31

  @Clive_A Thank you for your reply. I understand that. What I want to know is if load balancing and failover is both possible. Example:

 

  1. WAN - Internet Provider A
  2. WAN1/LAN - Internet Provider B

 

Intended router behavior:

  1. "A" is up and "B" is up. Load Balancing happens between the 2.
  2. "A" is up and "B" is down. ➡ Router detects situation. All traffic goes to "A" until ping succeeds again on B. Load Balancing is disabled.
  3. "A" is down and "B" is up. ➡ Like above but vice versa.

 

The state change from ① to ② (or ③) can take a minute, that's fine. However, I think that currently if load balancing is active, it's still trying to get or send data over the unavailable port.

 

Was I able to able explain it properly?

 

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Re:ER605: Load Balancing and Failover - Possible?
2025-06-10 01:06:07

  @SkyeGu 

SkyeGu wrote

  @Clive_A Thank you for your reply. I understand that. What I want to know is if load balancing and failover is both possible. Example:

 

  1. WAN - Internet Provider A
  2. WAN1/LAN - Internet Provider B

 

Intended router behavior:

  1. "A" is up and "B" is up. Load Balancing happens between the 2.
  2. "A" is up and "B" is down. ➡ Router detects situation. All traffic goes to "A" until ping succeeds again on B. Load Balancing is disabled.
  3. "A" is down and "B" is up. ➡ Like above but vice versa.

 

The state change from ① to ② (or ③) can take a minute, that's fine. However, I think that currently if load balancing is active, it's still trying to get or send data over the unavailable port.

 

Was I able to able explain it properly?

 

You cannot do that. 

Common Questions About the Load Balancing, Link Backup(Failover) & Online Detection

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