Some devices no longer connnecting to wifi

[mgbsheep]

Hi I have a a smart hub 7 pro with a couple of ee smart wifi pro wifi extenders.
Today some devices lost ionternet connection.
Laptops seem fine, iphone 17 is fine, 2 iphones 12s and a couple of ipads have lost internet. 
We've rebooted everything. I've added a compatible wifi network, all devices connect to the wifi but some refuse to connect through to the internet. 
i used to have the 2 iphones 12s in a group but now one is out of the group and the app won't let me add it back.
Anyone any ideas? I'm about to factory reset it and I don't fancy that as setting up the extenders wasa real pain in the **bleep** and I don't want to have to do it again. 
Frustrating I can't manage things like that outside of the app.

[JimM11]

@mgbsheep See the linked information from Profile Closed regarding getting the extenders to work linked below.

Top Tips for pairing your WiFi Extenders to the Smart Hub 7 Pro - Page 3 - The EE Community

Would be good to know what was working all before this point and for how long, will have a look to see if the app was updated and only at the ios one as you do appear to be a Fruit flavoured user. 

EE App was just recently updated, did that happen on your mobile devices?

As you have started it all off now, would do the reset if you intend that and just connect the one working device, get the Pro up the Extenders that you require all first and see how it looks. 

[mgbsheep]

It might the the cpn which locks down the kids devices.....
I have 3 wifi extenders but when I added the third it seemed to make everything worse. so it's been unplugged since about march.
I moved to EE from Bt in Feb. It's bascially been running since then.
We have connected at various times, 2 work laptops, 1 macbook, iphone 17, iphone 14, 2x iphone 12, home laptop, school laptop, 2 smart tvs, 2 apple tvs, 3 ipads, 6 ipod minis, a doorbell, various smart lightswitches, 12 radiator valves, etc etc, 
Apart from the initial problems setting up the hub and extenders back in feb/march it's all been working.
I set up groups for all the devices and I notice now that devices are missing from groups, not sure when that happened.
I only have the ee app on one device and thats the iphone 17 which works fine. iOS app was updated about 5 days ago.. 
I've not checked my work laptop but it seems the devices not getting an internet connection are the kids which have kidslox installed. 
I'm beginning to think the common theme linking the devices not getting internet is their kidslox vpn rather than their age. the kidslox app was updated a few weeks ago but they may have changed something outside the app.
I'v decided this is a kidslox problem not an EE problem.
but thanks for the link to the tips for pairing. I think I tried the cable route before but when I do have to inevitably reset it all at some point the link is good to have.