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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Not sure what you mean.
I have EU/1.0 tplink support told me there is already version 1.3.
I assume they fixed stuff from 1.0-->1.3.
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@M3rl1n unfortunately that's not how the revisions work. As time passes companies find easier or cheaper ways to build products. As the components change they have to start writing new firmware for each revision and the newer ones don't always have the same features as the older, more established product versions. V1 has the MAC address white listing feature for instance, I believe V2 and V3 still do not have this feature.
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Oh man so its a "choose your poison" situation huh?
Either get a **** 1.0 version with an obvious hardware defect or get a **** v2, v3 with **** Firmware.
Lovely 
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I was having the same issue with built-in ethernet ports not working. It seems like a bug. From packet captures, it looks like the some ports are "Stuck" and not sending data packets. What worked for me is to enable IPTV/VLAN feature in the "Advanced" settings, and apply "Bridge" profile on Port 1 of all the Deco's. This triggered configuration change on all 3 ethernet ports of each Deco. It "Unstuck" all ports. Then I just use port 2 and 3 instead for backhaul and ISP connectivity. I didn't disable "Bridge" profile on Port 1 later. Probably could disable it now that I have the ports "Unstuck". This worked for me.
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I guess its a solution but I really dont want to do this everytime the port gets stuck. Its hardly a reliable network if at random one of your devices stops functioning.
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@HC-User I am intrigued by this answer because I always assumed it was a hardware defect. Hearing that you found a way to get Port1 to work again suggests a software firmware issue and I would hope that TP-Link could address once and for all. Anyone know how to share things findings with appropriate party to address?
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@HTS It took weeks to go back and forth but TP-Link did honor swapping my deco devices out to brand new ones. Even though it was out of warranty I did firmly suggest based on this thread that this issue is significant for consumers. If I were you, I would submit a ticket for them to potentially explore swapping the devices out at no-cost. I did have to pay for shipping but the swapping out was fairly easy. FYI
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Hey all. I ended up working with TP-Link support, and very politely worked my way up the chain to get two sets of two-node XE75 replacements, despite one of mine technically being "Out of Support", whatever that means. I made sure that the replacements were the version 2.6 models rather than the 1.6. I have them both up and running and returned the originals. They did end up charging me for a week while the originals shipped back, but I was refunded and am now only out the shipping cost. All told, I spent a rediculous amount of time troubleshooting the originals both at my house and my parents before giving up and asking for replacements. I'm happy enough now to not wish bad things to anything with a TP-Link logo on it...
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