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Severe routing/peering issue: slow downloads & websites unless using VPN (Odido Fiber Almere)

  • December 3, 2025
  • 18 reacties
  • 170 Bekeken
A

Hello Odido Community Team,

I have Odido Fiber in Almere and I’m experiencing a routing/peering problem.
This is not a Wi-Fi or modem issue.

Symptoms

  • Speedtest to Odido servers is always normal (800–900 Mbps).

  • But many real-world services are extremely slow:

    • LinkedIn

    • Atlassian / Jira

    • Hetzner-hosted servers

    • German networks (example: EDV Kossmann, 146.0.33.35)

VPN / mobile hotspot tests

  • With Cloudflare WARP (VPN): everything becomes fast immediately.

  • With mobile hotspot (different provider): everything is fast.

  • Only the direct Odido route is slow. (600Mbps vs 7Mbps)

Pattern

  • After reboot: speed is normal temporarily

  • After 30–60 minutes: speed becomes slow

  • VPN fixes it instantly

  • Hotspot fixes it instantly

 

Thank you.

December 4, 2025

Hey ​@amirsh, welcome to our community!

Thank you for sharing this with us in such detail. It's great that you've already tested and ruled out so many things yourself. That helps enormously. I can imagine that this is very frustrating, especially because your connection seems perfect on paper, but in practice it doesn't work at all. We will of course be happy to investigate this further with you.

Since you indicate that this is not a Wi-Fi or modem problem, but really points to routing/peering, I would like to gather a few more details to pass on to our technical department as accurately as possible. Could you answer a few questions for me?

  • Your IP address (WAN IP) at the time the slowness occurs.
    You can find this at: https://www.whatismyip.com (You may mask the last digits if necessary.)

  • A traceroute to 1 or 2 of the slow destinations.
    For example, to:

    • 146.0.33.35 (EDV Kossmann)

    • a Hetzner-server that is slow

    • or an Atlassian/Jira domain

    Windows:
    tracert 146.0.33.35
    Mac/Linux:
    traceroute 146.0.33.35

  • Are you using our standard ONT + modem, or your own router?If so:

    • which router

    • is running VPN, DNS filtering, firewall rules or QoS?

  • Is the problem always reproducible within 30–60 minutes after rebooting?

To investigate this further, I need some information from you. Can you enter your postcode + house number and date of birth in your community profile? Then we can identify the line and investigate this further in a secure manner.

 

​​​​​​​

18 reacties

Tommie van Odido
Moderator
Forum|alt.badge.img+11
  • Tommie van Odido
  • Moderator | Internet + TV
  • December 4, 2025

Hey ​@amirsh, welcome to our community!

Thank you for sharing this with us in such detail. It's great that you've already tested and ruled out so many things yourself. That helps enormously. I can imagine that this is very frustrating, especially because your connection seems perfect on paper, but in practice it doesn't work at all. We will of course be happy to investigate this further with you.

Since you indicate that this is not a Wi-Fi or modem problem, but really points to routing/peering, I would like to gather a few more details to pass on to our technical department as accurately as possible. Could you answer a few questions for me?

  • Your IP address (WAN IP) at the time the slowness occurs.
    You can find this at: https://www.whatismyip.com (You may mask the last digits if necessary.)

  • A traceroute to 1 or 2 of the slow destinations.
    For example, to:

    • 146.0.33.35 (EDV Kossmann)

    • a Hetzner-server that is slow

    • or an Atlassian/Jira domain

    Windows:
    tracert 146.0.33.35
    Mac/Linux:
    traceroute 146.0.33.35

  • Are you using our standard ONT + modem, or your own router?If so:

    • which router

    • is running VPN, DNS filtering, firewall rules or QoS?

  • Is the problem always reproducible within 30–60 minutes after rebooting?

To investigate this further, I need some information from you. Can you enter your postcode + house number and date of birth in your community profile? Then we can identify the line and investigate this further in a secure manner.

 

​​​​​​​

Life is too short to drink bad wine! Mods beantwoorden geen ongevraagde privéberichten.
A
  • amirsh
  • Auteur
  • is een Top Poster
  • December 4, 2025

Thanks for the reply,

My IP address: 87.209.155.XX

 

The speed test to Odido Server, VPN is OFF

https://www.speedtest.net/result/18555055301

 

The speed test to Odido Server, VPN is ON

https://www.speedtest.net/result/18555058511

 

The speed test to Kossmann Server, VPN is OFF (SLOW)

https://www.speedtest.net/result/18555067407

 

The speed test to Kossmann Server, VPN is ON

https://www.speedtest.net/result/18555070027

 

Trace route when VPN is OFF

amir@Amirs-MacBook-Pro ~ % traceroute edv-kossmann.de

traceroute to edv-kossmann.de (146.0.33.35), 64 hops max, 40 byte packets

 1  192.168.1.1 (192.168.1.1)  123.433 ms  3.177 ms  3.074 ms

 2  1-192-179-143.ftth.glasoperator.nl (143.179.192.1)  136.195 ms  6.546 ms  5.773 ms

 3  10.10.10.170 (10.10.10.170)  142.050 ms

    10.10.10.174 (10.10.10.174)  9.927 ms  9.530 ms

 4  * * *

 5  * * *

 6  eth53-1q2-h9077.core1-ams-eq3.bb.as24961.net (80.249.208.219)  14.344 ms  14.753 ms  14.461 ms

 7  * * *

 8  lag0.agr3-dus3.bb.wiit.network (89.163.203.51)  16.063 ms

    lag1.agr4-dus1.bb.wiit.network (89.163.203.78)  15.713 ms

    lag0.agr3-dus3.bb.wiit.network (89.163.203.51)  14.934 ms

 9  * * *

10  gw1.dus.ekrz.de (89.163.151.86)  18.431 ms  14.837 ms  14.664 ms

11  plesk.ekrz.de (146.0.33.35)  15.805 ms  14.056 ms  14.612 ms

 

I’m using Odido router and equipments

Please let me know if you need more informantion.

Thanks

Nora van Odido
Moderator
Forum|alt.badge.img+5
  • Nora van Odido
  • Moderator | Internet + TV
  • December 5, 2025

Hi ​@amirsh, thank you for all the information! I wanted to take a look into your subscription but I see the last 4 digits of your bank account are missing in your community profile. Can you please add them and leave a message in this topic as soon as you have done so? That way I can look into your subscription and help you with this! 

Neem snel een kijkje in onze handige Wiki: https://community.odido.nl/knowledge-base. Ongevraagde privéberichten worden niet beantwoord.
A
  • amirsh
  • Auteur
  • is een Top Poster
  • December 5, 2025

Hi ​@no misunderstandings , added the last 4 digits.

Tommie van Odido
Moderator
Forum|alt.badge.img+11
  • Tommie van Odido
  • Moderator | Internet + TV
  • December 8, 2025

Hey ​@amirsh, thanks for adding your information.

I see you've disabled mesh on the modem. Could you please give the modem a hard reset by pressing the button on the back for 30 seconds and then run a wired speed test with the default settings on the modem? Please run one with VPN and one without. I'm curious to see what the results will be! 

Life is too short to drink bad wine! Mods beantwoorden geen ongevraagde privéberichten.
A
  • amirsh
  • Auteur
  • is een Top Poster
  • December 8, 2025

Hi, As you said I made a hard reset, all setting were factory reset, turned of the macbook wifi, connected via cable, tested with/without vpn

to Odido Amsterdam server without VPN:

https://www.speedtest.net/result/18572172715

to Odido Amsterdam server with VPN:

https://www.speedtest.net/result/18572175918

to Kossmann Heinsberg server without VPN (slow):

https://www.speedtest.net/result/18572166789


to Kossmann Heinsberg server with VPN:

https://www.speedtest.net/result/18572169721

 

Kossmann is just an example of many slow servers. 

 

my ip address: 87.209.155.XX

Traceroute:

 

amir@Amirs-MBP ~ % traceroute edv-kossmann.de
traceroute to edv-kossmann.de (146.0.33.35), 64 hops max, 40 byte packets
 1  home (192.168.1.1)  2.710 ms  1.627 ms  1.565 ms
 2  1-192-179-143.ftth.glasoperator.nl (143.179.192.1)  4.665 ms  5.151 ms  4.767 ms
 3  10.10.10.174 (10.10.10.174)  7.773 ms  7.989 ms  7.922 ms
 4  10.226.4.3 (10.226.4.3)  7.386 ms  7.565 ms  7.534 ms
 5  * * *
 6  eth53-1q2-h9077.core1-ams-eq3.bb.as24961.net (80.249.208.219)  18.908 ms  29.486 ms  14.422 ms
 7  * * *
 8  lag0.agr3-dus3.bb.wiit.network (89.163.203.51)  51.085 ms
    lag1.agr4-dus1.bb.wiit.network (89.163.203.78)  14.252 ms
    lag0.agr3-dus3.bb.wiit.network (89.163.203.51)  16.648 ms
 9  * * *
10  gw1.dus.ekrz.de (89.163.151.86)  13.949 ms  13.565 ms  13.778 ms
11  plesk.ekrz.de (146.0.33.35)  14.446 ms  14.408 ms  14.546 ms

 

Tommie van Odido
Moderator
Forum|alt.badge.img+11
  • Tommie van Odido
  • Moderator | Internet + TV
  • December 9, 2025

Hey ​@amirsh, thank you for testing it. The upload really doesn't look good, so I've decided to send a technician to test everything. You will receive a message from Guidion shortly to schedule a technician. Could you keep me informed afterwards? 

Life is too short to drink bad wine! Mods beantwoorden geen ongevraagde privéberichten.
    A
    • amirsh
    • Auteur
    • is een Top Poster
    • December 10, 2025

    Hi all,

    After the Odido technician visit (he confirmed the it’s not a hardware issue and will open a case and left), I continued testing and found the issue is completely related to the WX5600-T0 extender.

    Setup:

    • Main router (EX5601-T1) is downstairs

    • WX5600-T0 extender is upstairs, connected to the router by Ethernet

    Here are the results:

    ✅ 1. Direct connection to the main router (cable, downstairs)

    • All servers fast (Odido, Hetzner/Kossmann, LinkedIn, Jira)

    • Fast with/without VPN
      → No issue

    ✅ 2. Direct connection to the same Ethernet cable upstairs (the one normally plugged into the extender)

    I unplugged the cable from the extender and connected it directly to my MacBook.

    • All servers fast

    • Fast with/without VPN
      → Cable + routing from the main router are perfect

    ❌ 3. When I plug the cable back into the extender and connect my MacBook to LAN2 on the extender

    • Odido server fast

    • Hetzner/Kossmann slow without VPN

    • Hetzner/Kossmann fast with VPN
      → Problem appears only when traffic passes through the extender

    ❌ 4. Same problem on extender WiFi

    • Slow without VPN

    • Fast with VPN

    ❌ 5. EasyMesh ON or OFF makes no difference

    Even with EasyMesh OFF (so extender has its own SSID), the issue stays the same.

    Conclusion

    Everything works perfectly as long as the WX5600-T0 extender is not in the path.
    As soon as traffic passes through the extender (LAN or WiFi), certain servers become slow unless VPN is used.

    So the issue seems to be how the WX5600-T0 processes traffic internally.

    Thanks!

    A
    • amirsh
    • Auteur
    • is een Top Poster
    • December 15, 2025

    Hi all,
    Just a gentle follow-up on this topic 😊

    I wanted to check if the technical team has had a chance to look at my findings above.
    Happy to provide any extra tests or details if needed.

    Thanks in advance!

    S
    Moderator
    Forum|alt.badge.img+4
    • Sven-Odido
    • Odido medewerker
    • December 16, 2025

    I wanted to check if the technical team has had a chance to look at my findings above.
    Happy to provide any extra tests or details if needed.

    Thanks in advance!

    We did, but honestly it does not make much sense 😅. The wifi extender does not have any influence on the traffic. Its nothing more then a layer 2 Access point. If you can share some more details and tests that would be great. For example do you see the same when using another server then Odido but still in The Netherlands. 

    Niet meer hier.
    A
    • amirsh
    • Auteur
    • is een Top Poster
    • December 17, 2025

    Hi Sven, thanks for the response.

    I’ve now double-checked all tests again, and the results are fully consistent with what I described earlier. I’ll also share an illustration in this thread to make the different setups clearer.

    Below are the exact measurements, using the same MacBook, same IP, same location upstairs, only changing whether the extender is in the path or not.

    1. Cable upstairs, but NOT via the extender

    (extender unplugged, the Ethernet cable that normally feeds the extender connected directly to my MacBook)

    → Everything is fast, with or without VPN.

    2. Using the upstairs extender (Zyxel WX5600-T0), WITHOUT VPN

    (cable from router → extender, then MacBook connected to LAN2 on extender)

    → Odido is fast, but Kossmann becomes extremely slow.

    3. Using the upstairs extender (Zyxel WX5600-T0), WITH VPN

     

    Because of this, I’ve now disconnected the extender completely. I’m currently using the downstairs Wi-Fi directly; the signal upstairs is weaker and slower, but still more stable and usable than with the extender.

    Extender firmware version: V5.70(ACDW.0)b13

    Honestly, it feels quite strange that I’ve been paying a monthly subscription for over a year while using a device that clearly caused a degraded internet experience.

    If there’s still any doubt, I’m absolutely fine with sending a technician again to verify this on-site.

    Looking forward to your feedback on next steps.

    Thanks in advance.

    S
    Moderator
    Forum|alt.badge.img+4
    • Sven-Odido
    • Odido medewerker
    • December 17, 2025

    Hi ​@amirsh, 

    Thanks for the explanation. I Did some testing myself with the same setup, but I'm not seeing the same problem. Its already strange that when you are connected to the extender wired the upload to the Odido server drops big time.

    Directly on the T56 
     

     

    Directly wired to the Extender 
     

    I ran the Kossmann test twice as the first time the upload was a bit lower, but still better then in your test.

    I see my colleague replaced your Wi-Fi extender earlier in the month, did you had the same problem on the previous unit? As well could you please connect the Wi-Fi extender so I can have a look at it. 


     

    Niet meer hier.
      A
      • amirsh
      • Auteur
      • is een Top Poster
      • December 17, 2025

      Hi Sven,

      Just to clarify: the Wi-Fi extender was not replaced earlier this month.

      I received the extender shortly after I started my Odido subscription last year. The first unit had a faulty power adapter, so it was replaced at that time.
      Since then, the extender itself has not been changed or replaced.

      Thanks!

      Tommie van Odido
      Moderator
      Forum|alt.badge.img+11
      • Tommie van Odido
      • Moderator | Internet + TV
      • December 18, 2025

      Hey ​@amirsh, we have decided to send you a different wifipoint to rule out any equipment issues. Once thewifipoint has been dispatched, you can track the shipment in Mijn Odido. You will receive return instructions for the old wifipoint by e-mail. Could you let us know if it is working properly? Thank you in advance. 

      Life is too short to drink bad wine! Mods beantwoorden geen ongevraagde privéberichten.
      A
      • amirsh
      • Auteur
      • is een Top Poster
      • December 19, 2025

      Hi,

      I’ve now double-checked all my previous findings and wanted to share the final results after receiving the replacement extender.

      Results with the new Wi-Fi extender

      Without VPN

      With VPN

      Re-test with the old Wi-Fi extender

      Without VPN

      With VPN

      Wi-Fi tests (upstairs, via new extender)

      When testing over Wi-Fi, I still see some differences depending on VPN and destination, but the speeds are no longer extremely low:

      • Without VPN

        • EDV Kossmann (Heinsberg): ~230 Mbps download / ~680 Mbps upload

      • With VPN

        • EDV Kossmann (Heinsberg): ~650–770 Mbps download / ~220–320 Mbps upload

      So while there is still a noticeable difference between with vs without VPN for the Kossmann server over Wi-Fi, the speeds are acceptable and usable, unlike before.

       

      Based on all these tests, it seems I was using a faulty extender for about a year. During that time, I paid a monthly fee for it and experienced a poor internet experience without knowing the root cause.

      Thanks again for your support and for sending the replacement.

       

        eric
        Super User
        Forum|alt.badge.img+14
        • ericSuper User
        • Odido Superuser
        • December 20, 2025

        Do not forget to send the old one back. 

        Welkom bij de klant-helpt-klant Community van Odido.
          Teresa van Odido
          Moderator
          Forum|alt.badge.img+5
          • Teresa van Odido
          • Moderator | Internet + TV
          • December 22, 2025

          ​@amirsh Thanks for your efforts and feedback! 

          I'm really happy that we've found the cause of the issue and the new wifipoint is working as intended. Fantastic! 

          I've immediately arranged for the costs of the faulty wifipoint to be refunded. You will receive an e-mail confirmation about this, and the amount will be automatically deducted from the next bill. 

          Please let me know if you have any other questions. If issues arise, you know where to find us. We're always happy to help! 😄

           

          Neem alvast een kijkje in onze Wiki: https://community.odido.nl/knowledge-base
            A
            • amirsh
            • Auteur
            • is een Top Poster
            • December 23, 2025

            Thank you all.

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