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Experia V12b gets confused: Connected, no internet

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Experia V12b gets confused: Connected, no internet

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Experia V12b gets confused: Connected, no internet
Experia V12b gets confused: Connected, no internet
2025-04-18 11:17:09 - last edited 2025-04-22 03:01:49
Tags: #Network Connectivity
Model: Deco X60  
Hardware Version:
Firmware Version: 1.3.0 Build 20240830 Rel. 50008

Dear community,

I'm pulling out what's left of my hair by now. Last Monday evening everything was working fine, and after I got back from the gym my whole house (wifi/network) is messed up. No TV, no internet, no smart devices, nothing... After contacting my ISP and several hours of (long distance) checking and trying, including video conferencing, still no sollution. So a technician would come buy. He came into the house, basically ripped out the cables of my modem and the internet was fine again... So, after a little testing and doing the problem would be the Deco X60, causing the problem... I should reset and reinstall them.

Well, I've been trying ever since to get it all up and running, but all I get to is:
- Internet and WiFi work fine using the ISP modem;
- Connecting the X60 main booster and I get "Connected, no internet" on everything and even the TV fails (again).
- I've tried to figure it out myself, but... But after extensive testing all I can say is:

- Traceroute to 8.8.8.8 still works → IP-level routing is fine
- DNS request to 8.8.8.8 (port 53) Times out → UDP port 53 seems blocked
- Both Deco and modem show "no internet" → So it seems like upstream

I've tried some nslookups etc. Tried connecting on IP... There seems to be no DNS, no HTTPS, no direct IP's... Just traceroute...

But, afterall my (personal) testing and contacting my ISP again, they don't see any reason for me to be blocked.
It doesn't matter if I reboot my fiberglass box, my modem, my Deco's... I'm going in circles. If the Main Deco is not connected, all is working fine, yet as soon as I plug it in... The Deco is connected, no internet, but even de ISP modem itself is connected, no internet... And (unless I'm really going crazy) it looks like even my cabled network (plugged into the modem directly) doesn't seem to work...

Please help me out, I've been going banana's for almost a week now...

Thanks in advance.

Marc

P.S.
Since I wanted to see the current firmware, it did somehow try to check for updates, but... Well, since there's no (real) internet... It stated it was up to date, but heck... How does it really know.

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Re:Experia V12b gets confused: Connected, no internet-Solution
2025-04-21 08:57:23 - last edited 2025-04-22 03:01:49

Hello @David-TP 

 

I've finally "figured it out". Well not why it didn't work anymore in the first place, but I've decided since I've tried everything to just "reset, reinstall" everything. It seemed like the connection between my Experia V12b modem and the (any) Deco's had become stale... Nothing worked, no matter which Deco I used. As soon as I connected it, and started setting it up in a few seconds it would be "Connected, no internet". (Green led burning...) Restarting the viberglass box, restarting the modem/router, restarting de Deco's... (Yes, even pressing the "fabric settings reset" on everything, did not work...)

 

So in the end, I basically started again from scratch, resetting, restarting and reinstalling, using a different SSID name (this most probably was the real solution), therefor forcing me to reconnect basically every smart device in the house, from smart sockets, camera's, radiators, heating system, etc... I didn't want to do that, of course, but hey... In the end, if it didn't work in the first place and now it does... It's been the smart choice. (Just took me hours, across the house (and even the garden).)

I've been in IT for more than 30 years myself, I've only once before came across a (little bit) simular situation when a site-to-site VPN connection got stale. In this case all seemed "green" too, saying it was okay, etc... Yet it didn't work. In the end I also started from scratch and got everything reconfigured, and installed for it to finally work again...

Ofcourse this goes against my logical IT brain telling me: "But there has to be some logical explanation..." Yet, after more than 30 years in IT I also use phrases like: "Well, probably one important bit got kicked crooked..." Or "Must be solar flares..."

Thanks for replying to my case.

Maybe my response may help somebody else.

Greeting,

Marc

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Re:Experia V12b gets confused: Connected, no internet
2025-04-21 06:12:34

  @MarcSonius 

Hi, welcome to the community.

May I know your internet service provider? How about the model number of the ISP-provided router?

 

Have you tried to set a different Deco X60 as the main Deco, and change the operation mode to "Access Point" mode?

 

By the way, would Deco turn red when it stopped working and reported "Connected, no internet" on the mobile devices?

 

It is also suggested to refer to Unable to connect to the Internet for more suggestions.

 

Thank you very much.

Best regards.

 

▶Check What's Currently Going on With Deco ▶Deco X50_V1_1.8.0 Significantly Expanded the Client Connection Details and Added Channel Selection ▶Deco X50/X55_V1.3_1.3.1 Introduced Channel Selection, WiFi Access Control and WireGuard VPN ▶Deco BE65_V2_1.2.10 New Firmware with Enhanced Stability & Interference Resistance ▶Deco BE75 1.1.0 Added WireGuard VPN, Manual Channel Selection and More Try to leave a Message if urgent help is required.
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Re:Experia V12b gets confused: Connected, no internet-Solution
2025-04-21 08:57:23 - last edited 2025-04-22 03:01:49

Hello @David-TP 

 

I've finally "figured it out". Well not why it didn't work anymore in the first place, but I've decided since I've tried everything to just "reset, reinstall" everything. It seemed like the connection between my Experia V12b modem and the (any) Deco's had become stale... Nothing worked, no matter which Deco I used. As soon as I connected it, and started setting it up in a few seconds it would be "Connected, no internet". (Green led burning...) Restarting the viberglass box, restarting the modem/router, restarting de Deco's... (Yes, even pressing the "fabric settings reset" on everything, did not work...)

 

So in the end, I basically started again from scratch, resetting, restarting and reinstalling, using a different SSID name (this most probably was the real solution), therefor forcing me to reconnect basically every smart device in the house, from smart sockets, camera's, radiators, heating system, etc... I didn't want to do that, of course, but hey... In the end, if it didn't work in the first place and now it does... It's been the smart choice. (Just took me hours, across the house (and even the garden).)

I've been in IT for more than 30 years myself, I've only once before came across a (little bit) simular situation when a site-to-site VPN connection got stale. In this case all seemed "green" too, saying it was okay, etc... Yet it didn't work. In the end I also started from scratch and got everything reconfigured, and installed for it to finally work again...

Ofcourse this goes against my logical IT brain telling me: "But there has to be some logical explanation..." Yet, after more than 30 years in IT I also use phrases like: "Well, probably one important bit got kicked crooked..." Or "Must be solar flares..."

Thanks for replying to my case.

Maybe my response may help somebody else.

Greeting,

Marc

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