Ahh, yes I see re the old modem model. I was wrong. The old model is an Archer 1600v  Ver: 2  This model was supplied to me by TPG, my ISP, approx 5 years ago.  It operated on WiFi perfectly fine.    When I upgraded to the fibre to the home, my ISP said the old Archer 1600v modem would have to be replaced with the new one they supplied ie the GX220 G2v model.  And yes, the WiFi is on in the new unit - one of the first things I did when installed. Also the fact the extender gets intermittent WiFi signal suggests it is turned on I would have thought.    Due to the nature of the setup with wavlink I have always had to use WiFi. I can't use a cable. So Yes, it was  WiFi with the old modem.  And WiFi has always been enabled with both the old and the new modems!   The problem is with the new modem! It works fine with devices situated close to it. And WiFi is turned on. Or the problem is the Wavlink devices are not working properly.    To be even more definitive, the problem is the inability of the Wavlink primary unit being able to send a strong enough WiFi signal to the extended unit. Or obtaining a sufficiently strong enough signal from the moden to relay it, ie to allow that to happen. That's why I first asked, do you know if the Wavlink is compatible with the new modem.    ... View more

@david64  As stated previously, the old modem is an AX1500, so info re AX10 is not useful.  Also as previously stated, no devices have been moved from where they were. The only thing I can do with them is to position them elsewhere. And that doesn't seem to be the issue.  Re th wavlink, while the primary box has solid LAN, WiFi and Link lights, showing it is working, the extenion box in the other room has Lan, WiFi and Link lights fluctuating off and on. As I said, it has not been moved. I disconnected it and rebooted it with no change in performance. That is, the lights keep switching on and off every 2 to 3 seconds.  Now that to me suggests the signal strength is not powered up enough. But as this is a new problem starting around the time the NBN was connected and the modem was upgraded, I wondered if it was the modem or connection somehow.  Or maybe the wavlink is not compatible with the new modem  (the GX220). Hence my question.   I cannot find out any info on the compatability of these devices. TP Link discusses compatability issues with other model modems, not the GX220. Other articles deal with best extension devices but none of them discuss compatability with th GX220 either.  Cheers ...      ... View more

HI david64, The old modem model was TP Link AX1500. The extender is a wavlink. Connects to the TP LInk GX220 G2v modem (the new one) by cable. Obviously the second part of the extender in the other part of the house connects via wifi.    The NBN connection is fibre to the home. And a 1 meter connection of copper cable from the modem to the NBN junction box in my office.  The position of all devices has not changed.   Thankyou .. PeterQld ... View more