W9970 as access point
I'm sure this has been done to death, but I'm hitting brick wall here so any help would be appreciated.
I have switched to BT full fibre, so have BT's modem & home hub6. So far so good.
We have an office in an outside building, until now have made do with powerline adaptors to link back to the BT router which mostly work, but are knocked out as soon as we plug in any kind of charger (laptop, phone etc) and it's getting unworkable. I decided to go for a wireless link between the buildings and (to save having to install an Ethernet network around the room) to use my old W9970 router as a wireless access point in the building. Network link is provided by a pair of CPE210 outdoor access points.
Buildings are under 100yds apart & direct line of sight. Good network response when plugging Ethernet into the PoE power supply LAN port on the receiver. So far so good.
I've followed the TP video (set fixed ip, switch off DHCP, use LAN port) many times with the W9970 with no success at all, the old router won't play ball either as WiFi provider or with ethernet plugged in. Everything on my network is on the same 192.168.1.x subnet, including the CPE210's and W9970.
Interestingly, it did work if I left the W9970 on a separate ip range 192.168.0.x and allowed it to allocate ip addresses in that subnet. Problem was, Windows and my wife's MAC couldn't see from one subnet to another to access our file server & printers.
I'm coming to the conclusion that this simply won't work... unless anyone has succeeded?
By the way, if not the 9970, then what AP would do the job in my situation please?