Intermittent Powerlink Connection on WPA7617
I have recently purchased a WPA7617 Kit (WPA7617 Extender w. PA7017 Adapter) and found that the extender unit only connects intermittently - connecting for between 5 and 20 seconds and then disconnecting for another 10 or so seconds before connecting again. The powerline LED on the extender turns on and off too. To be clear, the receiver and adapter do seem to successfully pair up but the connection is intermittent.
However the adapter seems to work fine as we have AV500/AV600 extenders which are paired perfectly with it.
I have tried pairing the extender with the adapter multiple times - by plugging them side-by-side at several different dual outlets as well as by plugging the extender into the adapter's passthrough socket. I have ensured there are no interfering electronics near either units and I've tried setting up the extender with all the AV500/AV600 units turned off. I've reset the extender multiple times and tried it with an older AV600 adapter, but still without any luck.
Could this be a faulty extender or is there possibly something about my setup that is preventing this particular extender from working?