XE75 Pro Capping Ethernet to 100Mbps

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XE75 Pro Capping Ethernet to 100Mbps

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
XE75 Pro Capping Ethernet to 100Mbps
XE75 Pro Capping Ethernet to 100Mbps
2023-07-03 10:38:23 - last edited 2023-08-11 08:39:55
Model: Deco XE75 Pro  
Hardware Version: V1
Firmware Version: 1.2.2 Build 20230613 Rel. 53594

Recently it seems my XE75 Pro have started incorrectly auto sensing my Ethernet ports on my satellite deco's have started going down to 100Mbps when there are 1000Mbps Cat 6 & 5e cables connected to those ports. It seems to co-incide with a recent firmware update. Has anyone else else experienced this? I have tried rebooting & full resets of each unit and the behavior eventually returns after an hour or so.

 

Topology wise, I have a main deco connected to my ISP provided router with Cat 6, then both satellite deco's are connected by Cat 6 cables to the main deco.

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1 Accepted Solution
Re:XE75 Pro Capping Ethernet to 100Mbps-Solution
2023-07-04 06:24:41 - last edited 2023-08-11 08:39:55

  @tomglazed  and All,

Please refer to the following solutions:

Optimize Ethernet Connection on Deco

Thank you very much.

Best regards.

 

Recommended Solution
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#2
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22 Reply
Re:XE75 Pro Capping Ethernet to 100Mbps-Solution
2023-07-04 06:24:41 - last edited 2023-08-11 08:39:55

  @tomglazed  and All,

Please refer to the following solutions:

Optimize Ethernet Connection on Deco

Thank you very much.

Best regards.

 

Recommended Solution
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Re:XE75 Pro Capping Ethernet to 100Mbps
2023-07-11 16:44:56

  @David-TP 

The Deco's are set to run in access point mode.

 

I have been able to further isolate the problem. Both ethernet ports running from the main deco to the satellites appear run fine at 1000Mbps. However, one ethernet on each of the satellites seems to be limited to 100Mbps (one out of the two). When testing with speedtest running on my iPad connected to either of the "limited" ports on both of the satellites, I get the limited 90-100Mbps speeds. Numerous resets of the devices connected to those ports & resetting of the satellites doesn't seem to have resolved things.

 

The other ethernet port on each satellite seems to be fine and providing 1000Mbps to the devices connected.

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Re:XE75 Pro Capping Ethernet to 100Mbps
2023-07-12 08:35:43

  @tomglazed 

Hi, Thanks for getting back to me.

Are you able to test whether the Ethernet port on each satellite stays on 100m/s all the time? or is it always the top/middle/bottom port on the satellite XE75 Pro that is capped at 100m/s?

Since later I might need to forward your case to the engineer so we want to check whether this issue is easily reproduced.

Wait for your reply.

Best regards.

 

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Re:XE75 Pro Capping Ethernet to 100Mbps
2023-07-12 11:14:07 - last edited 2023-07-12 12:04:57

  @David-TP

I've been running speed tests at various times of the day for the past few days + checking the stats on the devices connected to those ports. They remain at 100m/s.

 

The bottom port (2.5G/s) remains unaffected on both satellites & is used to backhaul to the main deco. On one of the satellites it is the middle port and on the other satellite it is the top port. At first I wondered if it was a cable degredation problem or the devices but when connecting an iPad with a 1000M/s Ethernet Connector & Cat 5e cable to both of the problem ports, I still only pull 90-100M/S when the problem free ports remain close to my broadband speed of 900M/s+.

 

Hope this helps!

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Re:XE75 Pro Capping Ethernet to 100Mbps
2023-07-13 09:52:49

  @tomglazed I have exactly the same set up and i'm having the same problem so you're not alone....

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Re:XE75 Pro Capping Ethernet to 100Mbps
2023-07-16 05:02:08

  @David-TP 

 

Just adding a +1 to this.

 

I am having the same experience across the satellites and on both gigabit ports on the main deco. Issue here is of course the 2.5port on the main deco is the fibre in, so no now the outbound backhaul is capped at 100

 

Is it possible to get an update on this issue please mate?

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Re:XE75 Pro Capping Ethernet to 100Mbps
2023-07-25 06:30:17

@David-TP 

 

Do you see any chance of TP Link looking into this? Certainly seems that a few users are experiencing the problem.

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Re:XE75 Pro Capping Ethernet to 100Mbps
2023-07-26 11:05:14

  @tomglazed 

Hi, Thanks for the notification.

After reviewing the previous record, I would like to forward your case to the senior engineers for further assistance.

Please check whether you have got an email from us.

Thank you again.

best regards.

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Re:XE75 Pro Capping Ethernet to 100Mbps
2023-07-26 11:25:06

  @jbh27 @REDMrMojo 

Hi, Sorry for the delay.

Were you still having the same issue on Deco XE75 pro?

When I checked the tomglazed feedback, he mentioned one thing:

If satellite XE75 pro is connected to the main XE75 pro via a 2.5G port, the Ethernet Backhaul Link speed is normal at 1G. The Ethernet Backhaul speed was only limited when the satellite XE75 Pro is connected via a 1G port.

Will you experience the same?

 

So far, the reported issue here hasn't been located yet. If other user happen to have the same issue, please help me check the following details:

1. Can I have a picture of your current network layout, such as:

Internet---ISP modem----<2.5G or 1G port?>main XE75 Pro----<2.5G>--satellite XE75 Pro#1

                                                                                                 ----<2.5G>--satellite XE75 Pro#2

  • Whether there is a network switch used for Ethernet Backhaul?

 

2. Did the limited Backhaul speed happen to satellite Deco units only? Or do both Main Deco and satellite Decos have limited speed?

 

3. Did the issue start after 1.2.2 firmware upgrade or the speed was also capped at 100m/s before 1.2.2?

 

Thank you very much.

Best regards.

 

 

 

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Re:XE75 Pro Capping Ethernet to 100Mbps
2023-07-26 12:01:19

  @David-TP 

Much appreciated, I can confirm receipt of the email and look forward to working to find a solution.

 

For further context in recent developments to try and identify a solution, I recently look at my main modem/router (BT Smart Hub 2) to see if settings within that could be impacting the Deco’s. One setting that seems to have changed the problem is in UPnP: the smart hubs have a setting called “Extend UPnP Security” on top of enabling UPnP. I disabled “Extend UPnP Security” but ensured UPnP is kept on. This seems to have changed the impacted 1Gb satellite ports behaviour to instead of capping always at 100mb but to stop working all together (no IP get’s assigned to devices connected to those ports); other ports still work flawlessly. Obviously this isn’t a desired outcome, I've since rewired by network setup to use the one fully functioning port on each satellite to then wire everything off of. Hopefully it gave any clues as to what could be a root cause, something to do with UPnP could be it?

 

I've sent the above in response to the initial email in the event it helps give any further context/root cause places to start off with.

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