BT Hub Problem?

[DelicaMan]

Hi, I think my Smarthub 2 is going wrong.

I have 4 win10 pcs plus a Win10 tablet on my lan. Since last Thursday only two of them can access the internet. On the others I keep them flicking between the hub's ID with "No Internet" or "Unidentified Network".

I assumed this was a Window's problem so yesterday isolated all devices from the lan then, one by one, connected each Win pc/tablet , done a Win update, then disconnected. (Each one connected with no issue)

I then shutdown the hub for 10 minutes, restarted, did a factory reset, and switched off the WiFi.

One by one I connected the Window's pcs and finally the tablet. Each time I checked for internet connection and all were fine.

Finally I switched the WiFi back on and everything was good for the rest of the day, but this morning I'm back to square one!

A curious thing is that, looking at the hub, it shows my Win10 tablet as connected to port 4 for the wireless mac address.

I'm now lost to work out what to do. Help please.

[DelicaMan]

Forgot to mention that the hub shows some pcs as having a static ips when windows show automatic.

[imjolly]

if you did a factory reset of SH2  did you remember to turn off smart setup in hub manager

[DelicaMan]

Nope. I'll give it a try now.

[DelicaMan]

Sadly no difference

[imjolly]

did you restart hub after turning off smart setup?

did you try selecting the wifi channels manually rather than leave on auto/smart.  I would use a wifi analyser on phone to see which channels are best for you

[DelicaMan]

Yes I turned off smart setup before doing a factory reset.
My smartphones seem to be coping okay, its my wired pcs that are a problem.

My main pc is currently shut down with the ethernet disconnected. I thought about disabling DHCP on it and the hub then assigning what hub has its ip config statically.

[DelicaMan]

Very interesting. After days of checking quite involved ethernet settings the only thing I was able to achieve was a WiFi connection from my only two PCs with built in WiFi. The others kept cycling between 'Network' -> 'Enabled' -> 'Unidentified Network'. The IP v4 Configs were in the 169.254 range which I understand is Windows "In House" addressing.

Yesterday morning, to my surprise, my network sprang into life when I started my PC and has behaved every since as if nothing had every gone wrong.

This comes on the same morning that I read an article on the BBC website regarding a Which report into the dire state of router security in the vast majority of router supplied by ISPs.

In my mind I suspect my router was hacked and BT applied a fix overnight.