TL-R605 v1 Low Download Throughput (Omada SDN)
I just unboxed, updated to the latest firmware, factory reset with the pinhole, and adopted to Omada SDN a brand new TL-R605.
For some reason, no matter whether Hardware Offload is enabled or disabled, I get great upload speeds but awful download speeds. I've tested it on both a Spectrum 600x35 connection and on an AT&T FIber 1000 connection. Speed test results from the AT&T FIber 1000:
Any ideas what could be causing the weirdly slow download speeds? I don't have any Bandwidth Control or Profile settings made.
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Dear @CLT-Geek,
For some reason, no matter whether Hardware Offload is enabled or disabled, I get great upload speeds but awful download speeds. I've tested it on both a Spectrum 600x35 connection and on an AT&T FIber 1000 connection. Speed test results from the AT&T FIber 1000:
It's recommended to use Iperf to test the throughput of the router. See the FAQ below.
How to use Iperf to test the speed on TP-Link routers, https://www.tp-link.com/support/faq/2408/
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I had another TL-R605 sitting in a box unopened, so I decided to do some testing. I upgraded the firmware to the latest but did not attach it to the Omada Controller.
I have this virgin TL-R605 connected to an AT&T Fiber 1000 connection. My Asus router consistently gets ~940x940 on speed tests on this connection.
Speed test out of the box before upgrading firmware of the TL-R605:
Speed test after upgrading to the latest firmware of the TL-R605:
Speed test after adopting the TL-R605 to Omada SDN 4.2.11 and placing it in my Default site (which has no other devices):
Speed test after adopting the TL-R605 to Omada SDN 4.2.11 and placing in one of my existing sites (which have other equipment in their site):
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Dear @CLT-Geek,
With the iPerf test, we can determine whether the TL-R605 is functioning well. So I suggested running the iPerf test first.
Speed test after adopting the TL-R605 to Omada SDN 4.2.11 and placing it in my Default site (which has no other devices):
Speed test after adopting the TL-R605 to Omada SDN 4.2.11 and placing in one of my existing sites (which have other equipment in their site):
To confirm, is the TL-R605 in different sites connected to the same ISP line?
Do you get the same result if you run the speed test on the Controller Dashboard?
May I know what other equipment you have on the existing site? Without other equipment, would the speed be better?
By the way, there is only one firmware released for the TL-R605 at present, where do you get the latest firmware for the update?
Sorry to ask so many questions, there may be something we overlooked, just trying to figure out the problem.
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I seem to be experiencing this same behavior. I just unboxed a new TL-R605 and was running LAN<->WAN iperf tests at about 919-923Mbit. I adopted it with a software controller running in a docker container on a freshly imaged Raspberry Pi 3B, and updated the firmware to 1.0.1. I'm not sure which of these actions caused the degradation, but now I am only seeing around 210Mbit.
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Ok, I just did some more tests...
Removed TL-R605 from Controller ("Forget") - No change
Restored original TL-R605(UN)_V1_20200930 firmware - WAN<->LAN iperf3 throughput restored (919-933Mbit)
Adopted TL-R605 from Controller - throughput remained in the 919-933Mbit range.
It appears that there is a performance regression with the following firmware: ER605(UN)_V1_20210113
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before the firmware upgrade just after unboxing the er605 got something like 950Mbit after upgrade of the firmware no more than 300Mbit.
is this recognized as an issue and will be managed by the 1.1.x version of the firmware?
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@CLT-Geek I have a similar problem but with the uploads. The download speeds are unaffected.
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Same issue here with brand new TL-R605
Tow ISPs, one with 1000Mbps and a 200Mbs (backup), download speeds goes lower than 300Mbps after router TL-R605v1_un_1.0.0_20200930-rel36519_up.
Download speeds directly connected tot he 1000Mpbs ISP's router were 940-985 Mbps at the time of the tests.
Any solutions?
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