Deco XE75 port 1 no longer working
Good day. A few months ago lost my internet connection and after no luck debugging the issue I simply swap my ISP ethernet cable from port 1 to 3
- Before swaping: Port 1 ISP. Port 2 Deco Secondary unit. Port 3 Switch
- After swaping. Port 1 Switch. Port 2 Deco Secondary unit. Port 3 Switch
Several weeks later there were some power outages due rain & wind. Internet and Deco units recovered but devices connected to switch were no longer accesible
- Removing the swicth and connecting the device (example. laptop) to port 1 didn't fix the issue (no switch issue)
- Ethernet cables working as intended (neither failure here)
- Attempt several scenarios (cant recall them) but ultimately only port 2 & 3 were working as intended
Upgrading to 1.2.6 didn't fix the issue and just yesterday I update to beta firmware 1.2.7 with promising results yet still issues
My results
- 2 XE75 Deco units
- Device and connection seems stable. No performance or disconnection issues so far
- Ethernet port 1 is empty, port 2 goes to a switch, port 3 goes to ISP
- Port 2 switch has on it: 1. Ethernet connection to Arlo hub station (security cameras), 2. Ethernet connection to network HDD, 3. Ethernet connection to another Deco XE75 unit
- Main Deco Working scenarios
- Scenario 1: Port 1 empty. Port 2 switch. Port 3 ISP. Secondary Deco working as intended.
- Scenario 2: Port 1 empty. Port 2 ISP. Port 3, switch. Seocndary Deco working as intended
- Main Deco NOT working scenarios
- Scenario 3. Port 1 ISP. Port 2 switch. Port 3 empty (no IP, red light, no internet)
- Scenario 4. Port 1 ISP. Port 2 empty. Port 3 switch (no IP, red light, no internet)
- Scenario 5. Port 1 switch (w/o Deco unit). Port 2 ISP. Port 3 empty (there's internet, Secondary Deco works, but whatever is connected to the switch will be unaccessible)
- Scenario 6. Port 1 switch (w/o Deco unit). Port 2 ISP. Port 3 Secondary Deco unit (There's internet, Secondary Deco works as well but devices connected to switch are unaccessible)
- Scenario 7. Port 1 switch (w Deco unit). Port 2 ISP. Port 3 empty (There's internet at first, but after a few minutes the whole internet will stop working, including internet WiFi)
- In brief
- Whatever is connected to port 1 is NOT detected by Deco App
- Whatever is connected to port 1 will not have internet
- If there's another Deco unit connected to port 1 via a switch it will likely crash the Internet at all, including WiFi
After this, did swap Deco roles
- Working scenarios (Main Deco, used to be Secondary)
- Scenario 1: Port 1 empty. Port 2 switch. Port 3 ISP. Secondary Deco working as well
- Scenario 2: Port 1 empty. Port 2 ISP. Port 3, switch. Secondary Deco working as well
- Scenario 3. Port 1 ISP. Port 2 switch. Port 3 empty. Secondary Deco working as well
- Scenario 4. Port 1 ISP. Port 2 empty. Port 3 switch. Secondary Deco working as well
- Scenario 5. Port 1 switch. Port 2 ISP. Port 3 empty. Secondary Deco working as well
- Scenario 6. Port 1 switch. Port 2 any device. Port 3 ISP. Secondary Deco working as well
- Secondary Deco (old Main Deco) WORKS if connected via port 2 or 3
- NOT working scenarios
- Old main deco (now secondary deco) NO working if connected via Ethernet port 1
Looks like Ethernet port 1 is my issue... Any way to figure out the root cause? Port no longer working? Really doesn't make sense that only 1 port is no longer working
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Hi, I have seen this feedback before the release of 1.2.8, even 1.2.7. So I think it is not related to the firmware.
It is suggested to contact the local warranty office to request for a replacement if the Deco is still under warranty.
Thank you very much and best regards.
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I have the same problems starting 2 weeks and only port #1 was not working. Any solution to fix it? I am on firmware V1.28 also.
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Hi, Thanks for the feedback.
Did it work well before and stop 2 weeks ago?
If yes, I think you could contact the local support team to claim for warranty service:
https://www.tp-link.com/ca/support/contact-technical-support/#E-mail-Support
Thank you very much and best regards.
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Well, I just woke up to a cold house today because my heating system lost connection to the internet. Turns out the Deco system couldn't connect to the internet despite the FTTP modem having no issues whatsoever. The only way I could fix the issue was to move the ethernet cable for the modem to a different port on the main Deco, and then I had to move the heating module to a different port on a different Deco to get it to connect as well.
Long story short, I've started an email support request to start the RMA process.
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Got a replacement unit on mid-December 2023. Yesertday one of the replacement port# 1 was not working anymore. Email technical support and see what is the answer. Seems there was problems on port #1 and don't know what is the cause. The new unit only work ~ 2 months and dead again.
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This happened to me this morning. My internet kept going out every 15-20 minutes then discovered the issue was port 1. Factory reset did nothing.
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I simpy don't want to take the effort for RMA. As replacement will have the same issue, sooner of later..
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@David-TP I have the same problem, top LAN port not working on 2 from 3 pcs of my deco XE75. First deco unit with top LAN port not working from september 2023 and second deco unit from yesterday. Is a complaint with the seller the only solution? I have a warranty for 3 units until 11/2025.
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And without any reason... just from one day to another the second unit port 1 stop working. The second unit worked without incidents for almost 5 months and just like the first one, port 1 stop working without any logic explanation... same symptons... port 2 and 3 works as expected... only port 1 in BOTH deco unit no longer functional
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I got my XE75 Pro V2 unit last night. 2.5G port worked fine for couple of hour and then suddenly it stopped working.
Luckily Amazon is accepting the return of the product.
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