What is the status on this? I see in the previous post that was automatically closed that a Teltonika employee was researching it and would come back with more info, but the topic was closed before that.
I use the TRB500 in passthrough mode and that seems to limit the speed, but there is another router behind it so I would like to avoid double-NAT if possible.
Any idea what can be expected from a TRB500?
In the specifications it says up to 3.3Gbit/s and of course that can never be achieved to the ethernet because that is only 1Gbit/s, but I expected that at least it would be able to saturate that.
However in reality I do not achieve more than 200-240 Mbit/s in passthrough mode.
At that point the system CPU is fully loaded, even when doing a speedtest from the device itself.
(but also when doing speedtest from a device on the ethernet port)
Is it possible to solve that? I am prepared to lose all built-in services on the device, it is only used as a 5G gateway behind an existing NAT/VPN router.
I do have the very same problem here. 600Mbit/s 5G in NAT, but in bridge/passthrough 220MBit/s max. That is really annoying. I have another router running in my network, so NAT mode causes several problems for me.
I think both 600Mbit/s and 220Mbit/s are annoying.
I expected 1Gbps as it says that it can do 3.3Gbit/s in the specs, I assume only to services running inside the device as it has no way of sending data that fast over ethernet.
When it can do only 600Mbit/s it is not adhering to its specs, and of course 220Mbit/s is even worse.
Like you, I want direct passthrough and frankly I expect that to be faster than NAT, if not the same.
Sorry for beeing unclear here: the 600-800 Mbit/s is the max speed I can get where I live, via 5G. With the TRB500 I do get that speed (so thats expected behaviour), but ONLY in NAT mode. I dont want to use NAT mode, because the headaches it gives me, with my setup. I bought the TRB500 as bridge device for 5G connection for my network, but as soon as I use bridge or passthrough, the 5G modem speed seems to be capped at 250Mbit/s. Thats a big bummer.
Ok, here the achievable speed is about 1.5Gbit/s but I cannot get that due to this issue.
Like you, I prefer to use passthrough mode although I don’t get “headaches” when forced to use NAT.
Still I would prefer it when this is solved. There is an IPsec tunnel running from the router I use which now uses ESP and would have to use NAT-T instead, and the local users would get double-NAT, but it works.
I only really noticed the issue when deploying the equipment at its final location where we get the 5G N78 band (before it was in an office building for test) and doing speedtests there.
I will go there this Tuesday to set it to NAT instead of passthrough to see if I get 1Gbps then.
Still I think the device should work to its specifications!
Ok I changed from passthrough to NAT and it is a lot faster now (like 650 Mbit/s).
Still I prefer to use passthrough mode, but at that speed.
Can someone from Teltonika please reply what the status is on this problem?
(that was promised in the previous topic that got auto-closed)
@Daumantas can you provide any info?
Hello @r.janssen ,
Apologies for a delayed response.
At the moment, we do not have a timeline of when and if the passthrough/bridge mode speed limitation could be addressed, as the issue comes from a third-party acceleration engine.
We are, however, working on different methods to increase throughput in these modes, but at the moment we cannot say exactly when we could release them or what the improvement will be.
It should be noted, that in NAT mode there shouldn’t be any issues with offloading, and the 600Mbps cap likely comes from either the signal, or the carrier backhaul limitations. We’ve seen other users report very close to 1Gbps speeds when in NAT mode.
Best regards,
Ok thank you for your response!
Yes, the 650 Mbps could be for some other reason, like the mobile provider and/or the speedtest server.
For now I have set it to NAT mode, but I hope at some time you will be able to offer this speed in passthrough mode!
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