ER605 doesn't recognize internet down
ER605 doesn't recognize internet down
I have an ER605 without a controller. It's connected to a SkyWifi SR203 FTTC with Dynamic IP. There's also another internet connection. When the connection to the SR203 goes down, if you connect to it directly it goes to a splash page. However, through the ER605, I would expect it to realize the connection is down since it can't reach Google, 8.8.8.8, etc and use the other connection. Instead, if keeps trying to push my computer traffic through the down connection every few minutes and caches that everything isn't reachable. How do I properly configure the ER605 to recognize when the connection is down even though it still goes to a splash page?
Right now I have load balancing enabled, with bandwidth based balance routing. I've tried using both Auto and Manual Online Detection. Either way it continues to route traffic to the SR203 even though it's down.
Thanks in advance.
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Hi @lorengd
Thanks for posting in our business forum.
lorengd wrote
@lorengd I have load balancing enabled. However, I didn't have link backup enabled. With Load Balance, Application Optimized Routing, and Bandwidth Based Balance Routing enabled, won't it only send traffic over WAN connections that are online?
No. It does not even detect the online status.
And load balancing is to balance regardless of the connection status. Load balance is about balancing. What you want is a link backup that failover and detects.
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When the connection is down, the SR203 intercepts DNS requests and returns the landling page to all requests. This means that the DNS request is seen as successful and so the ER605 beleives the connection is up. You could try changing the Online detection to manual and use ping rather than DNS. Try setting it to ping google (8.8.8.8) and set the DNS field to 0.0.0.0 https://www.tp-link.com/uk/support/faq/701/
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@lorengd So, we had a downtime on the SkyWifi again today. I had it configured as you described. However, computer traffic continued to be routed to the down internet connection. What's strange though, it successfully detected that SkyWifi was down, but then continued to route there anyway. I got the message below in the log, and the Port Status said offline.
[D8-44-89-C9-CD-62]: The online detection result of [WAN/LAN1] was offline.
How do I make it not route traffic to the connection that is down?
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Check your Load balancing and link backup configuration. Note that you need Load balancing enabled to get link backup functionality https://www.tp-link.com/uk/support/faq/2133/
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@lorengd I have load balancing enabled. However, I didn't have link backup enabled. With Load Balance, Application Optimized Routing, and Bandwidth Based Balance Routing enabled, won't it only send traffic over WAN connections that are online?
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TBH I've not used the multi WAN functionality myself so dont how it works in detail. Hopefully someone whos used it in anger, or a staffer will have more information
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Hi @lorengd
Thanks for posting in our business forum.
lorengd wrote
@lorengd I have load balancing enabled. However, I didn't have link backup enabled. With Load Balance, Application Optimized Routing, and Bandwidth Based Balance Routing enabled, won't it only send traffic over WAN connections that are online?
No. It does not even detect the online status.
And load balancing is to balance regardless of the connection status. Load balance is about balancing. What you want is a link backup that failover and detects.
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Ok, so the routing rules section says it only applies when the connections are online. Why would you not do the same for Load Balancing? Clearly load shouldn't be balanced onto an offline connection.
Now, what I want is to balance the load when both ISPs are online, but if either one drops, only use the one that's online. This seems like a pretty standard and basic requirement for a WAN aggregator. However, I can't seem to figure out how to do it because you can't have each line be the backup of the other and the load balancing is insensitive to online status. Is it really not possible with this device to balance the load across whatever connections are currently online, or am I still just not configuring it right?
Thanks
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Hi @lorengd
Thanks for posting in our business forum.
lorengd wrote
Ok, so the routing rules section says it only applies when the connections are online. Why would you not do the same for Load Balancing? Clearly load shouldn't be balanced onto an offline connection.
Now, what I want is to balance the load when both ISPs are online, but if either one drops, only use the one that's online. This seems like a pretty standard and basic requirement for a WAN aggregator. However, I can't seem to figure out how to do it because you can't have each line be the backup of the other and the load balancing is insensitive to online status. Is it really not possible with this device to balance the load across whatever connections are currently online, or am I still just not configuring it right?
Thanks
Do you have any experience with one that can be implemented as the load balancer and while it detects the online status without failover enabled?
Load balance was never a guarantee in the always-online. Load balance means that it can switch over between the lines but not guarantee the link.
What you need is failover. But failover is not gonna use the line while it is reserved as the backup.
If the DNS query got resolved, it will be considered as the up like Mister replied earlier.
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I suspect you need a better router in order to do what you are needing. Have a look at Openwrt and Mwan3. You're going to need something more powerful than the ER605 though
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Hi @MisterW
MisterW wrote
I suspect you need a better router in order to do what you are needing. Have a look at Openwrt and Mwan3. You're going to need something more powerful than the ER605 though
That's right. What he needs is more than demanding in the hardware and resources. I don't think any closed platform would offer such.
I have seen different ways of online detection on Openwrt. These designs are brilliant but I haven't tried them yet on my models. That is powerful but of course, takes up more resources(from what I learned about the hardware and software).
I have flashed several systems like Merlin and Openwrt. Compared with the original system that is tuned, I would say Openwrt is great in wired and ACL as it is very granular but would not compare/compete in the wireless lane.
Stability is not good enough. And you have to have enough knowledge and basic LINXU skills to play around with them.
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