Need help, BT Broadband with ZyXEL WLAN issues

New to this chat, hoping someone can help. We have just changed from a slow 6 MBPS in rural area, to Skys high speed fibre broadband. I used ZyXEL WLAN plugs prior to send signal around the house, maybe 7 or 8 of them, they were slow due to incoming speed, but all worked OK. With new broadband I now have big issues.

I have 3 sorts of plugs PLA4201 V2, the PLA4201 and the PLA5456. I get 70 ish mbps when broadband works.

Issue is the signal keeps dropping to zero, then back up to full. Speed is fine if I hard wire a lead into back of router.

My set up is Broadband Box connected to wall }Wifi Router}zyxelplug}mains}zyxel plug}various devices

red light is on most of time on lugs suggesting less than 20mbps.

Weird thing is when I run an OOKLA speed tests it seems to go OK, getting green lights showing full speed, then it goes red after speed test.

Help gratefully appreciated

What Sky router do you have? The Sky Q router has its own PowerLine network and this may be clashing with existing plugs that you have.

The powerline units will be affected by distance and quality of the mains wiring, my temptation would be to remove the slower plugs and see if things stabilise using the faster plugs.

A word of caution, powerline products can interfere with VDSL2 (the service you now have) and vice versa so your issue may be down to that, so keeping power line units away from the phone as much as possible is best.

Hi, I have a BT router, a new wifi one, thoughts?

The wiring is only a few years old, and it all worked previously , its only stopped since putting in my new BT router. Previous one was Sky standard which worked

This is very confusing.

In your OP you said

We have just changed from a slow 6 MBPS in rural area, to Skys high speed fibre broadband.

That statement in effect blinds people to your "Subject" that says BT Broadband.

Now you say you have taken out the Sky router and put in a new BT wifi router. Is that connected to your new Sky high speed broadband or some second BT high speed broadband you have on a second line.

Please clarify .

Edited by RobertoS (Wed 12-Sep-18 23:13:33)

My original response was based on the 6 Mbps referring to an ADSL service and the new service being a FTTC/VDSL2/Fibre one, provider is irrelevant

But you opened with �What Sky router do you have? The Sky Q router has its own PowerLine network and this may be clashing with existing plugs that you have�. The OP replied with the fact he has a new BT router and then �The wiring is only a few years old, and it all worked previously , its only stopped since putting in my new BT router. Previous one was Sky standard which worked�.

If the Sky mention in the OP is a red herring, as I suspect, then it won�t be the cause of any interference with the power line plugs.

I still think the OP needs to clarify exactly what kit is being used. I think it could be BT FTTC with a BT Hub, and power line plugs that are just too low spec for the new speeds.

Edited by RobertoS (Thu 13-Sep-18 01:02:21)

"Sorry for being an idiot.... we do have a BT hub now on fibre, it used to be Sky. I typed Sky by mistake apologies.
Thoughts? "

Original poster added the above, but in a wrong thread.

The chances if it was Sky ADSL and BT Fibre are

1. This used to happen but was not obvious due to the slower speeds of ADSL
2. The extra speed of the broadband and downloads may be stressing the powerline adaptors, especially in a mixed speed standard mix, so try using just the fastest standard devices and then the older standard ones to see which set runs reliably for you.
3. Powerline can interfere with VDSL2 (your fibre broadband) and vice versa so keeping the powerline plugs as far away from the phone line may help

BTs Hub or at least the ultrafast type with the built in modem does not like the powerline type extensions it causes issues and is probably the reason your having problems, i got around it by utilising a wifi mesh system from TPlink that has a lan outlet connected to a small switch in the living room for the TV etc my BB main socket is where i asked it to be installed in my home office, i still get 80mbs throughput doing it this way