Slow downloads on ER8411 V1.0 FW1.0.1

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Slow downloads on ER8411 V1.0 FW1.0.1

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
37 Reply
Re:Slow downloads on ER8411 V1.0 FW1.0.1
2023-01-11 21:32:28

  @8411guy let me know your finding please

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#12
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Re:Slow downloads on ER8411 V1.0 FW1.0.1
2023-01-11 21:48:40

  @KPejman neither the media converter or the Sfp+ changed the issue. Must be something in the firmware?

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#13
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Re:Slow downloads on ER8411 V1.0 FW1.0.1
2023-01-12 17:05:54

  @8411guy most probably. I'm trying to call the support and see if they know anything about it. 

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#14
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Re:Slow downloads on ER8411 V1.0 FW1.0.1
2023-01-12 18:28:20

  @8411guy I tested with the media convertor as well and no difference for me either. :(

on a call now with support and see if they have any suggestions. 

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#15
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Re:Slow downloads on ER8411 V1.0 FW1.0.1
2023-01-12 22:55:35

  @8411guy the MikroTik S+RJ10 didn't do anything for me either. 

I talk to support and they collected some screenshots and they said they get back to me. 

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#16
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Re:Slow downloads on ER8411 V1.0 FW1.0.1
2023-01-15 00:38:09

  @8411guy I experienced something interesting. 

  • I installed my firewall (Firewalla Gold Plus) between my er8411 and my switch (TL-SG3428X) using the SFP+ modules. my download speed went to 100Mbps only.
  • then I replaced the SFP+ module that connects my Firewall to ER8411 to Mikrotik and my speed went back to 750Mbps down and 50Mbps up. 
  • then I replaced the SFP+ modle on my switch to Microtik but the result was the same. 
  • I then SSH to my firewall and did the speedtest directly on the firewall and I get 1.8Gbps down and 50Mbps up ( exactly what my ISP service is).
  • but when I check from the PC or any other device connected to the switch the speed is not what I expect. 

 

I'm wondering if there is a conflict or somehow some setting mismatch that is part of the firmware between the ER8411 and Switch ? 

I ordered a 2.5G NIC card to see if I connect my PC directly to ER8411. that makes any difference. 

 

I'll share more finidings. 

 

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#17
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Re:Slow downloads on ER8411 V1.0 FW1.0.1
2023-01-26 23:18:24

  @8411guy today I switched my WAN port from SFP+ port to one of the !Gbs ethernet port and set that port as a WAN.

 

  • right after that I get 980Mbps download from the same ISP and same modem.
  • if I connect back the modem to SFP+ Wan1 port then the download is reduced to 500Mbps. 

 

I have a 1.Gbps download speed from my ISP so connecting directly to modem gives me 1.7Bbps download. 

it's really confusing as why when I connect the modem to SFP+ port, I experienced reduced download speed!

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#19
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Re:Slow downloads on ER8411 V1.0 FW1.0.1
2023-01-29 01:22:48

  @8411guy I did more testing, 
 

  • I run my man mini with direct cat6a cable to my XB8 modem
    • download 1.7Gbps
    • Upload 52Mbps
  • connect the same cable now to my TL-SG3428X switch (ER8411 is still my gateway connected to XB8 modem)
    • download gets to 740Mbps 
    • Upload remains the same 
  • I removed my ER8411 and put my old ER7206 back and my Man mini connected to my TL-SG3428X switch
    • download 980Mbps (since the port is 1Gbps on the ER7206 this is very good)
    • upload is the same
  • then I connected back my ER8411 back and connected it to my TL-SG3428X switch
    • turned on Flow Control on the uplink port of TL-SG3428X which is a 10G SFP+ port
      • Download went to 230Mbps
      • Upload 10Mbps 
  • then connected my Mac Mini directly to ER8411
    • download 230Mbps
    • Upload 10-20 Mbps

 

conclusion: I think the ER8411 has the Flow Control on by default and somehow it forces the port to transmit at lower speed. I think this is a software bug that can be fixed. 

there is no option on the omada to change the port settings for ER8411!!!

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#20
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Re:Slow downloads on ER8411 V1.0 FW1.0.1
2023-01-29 01:35:35

  @KPejman I can see flow control but have no way to disable it

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#21
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Re:Slow downloads on ER8411 V1.0 FW1.0.1
2023-01-29 04:10:52

  @8411guy where do you see the flow control setting on ER8411 ?

I can't find it. 

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#22
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