Some devices not connecting to 2.4 - VR2800
Two devices are completely refusing to connect to my 2.4 connection. These are a tablet and the Xbox (One S)
I have been using the vr2800 instead of the crappy Sky router, but today I changed provider and I'm now with Plusnet. I opted to keep using the VR2800, mainly because I really didn't want the hassle of having to change all the details on the millions of devices that we have (well, not literally millions!) Everything is running smoothly apart from these two devices.
All devices that have been checked immediately reconnected to my 2ghz wifi connection as soon as the switchover was completed. I just haven't checked things like Chromecasts etc yet.
I haven't changed any of the settings on the router (apart from swapping from Sky to Plusnet, obviously) and I did also set the channel to auto from 11 only to see if that would help these particular devices connect but it didn't make any difference.
The SSID is the same etc.
I'm totally at a loss as to why this is happening. There are no extenders currently installed although I do plan to put them back in at some point now that I have changed provider. Tried the usual restart router etc.
By the way, I'm in the UK.
I'd appreciate any help possible. Just so you know, I can't always play around with it due to working from home and, well, kids shouting at me if it goes off!