Limited/no internet connection

[#1]

Hello,
over the past couple of weeks our household have been experiencing intermittent internet drops, Windows 11 machines report 'limited connection', Windows 7 'no internet connection', it also affects android and IOS devices. The BT HH5 troubleshooting reports we are connected to the internet but only a reset of out HH5 fixes the issue.
I can ping both the DNS servers,
C:\Users\gw>ping 212.159.6.10
Pinging 212.159.6.10 with 32 bytes of data:
Reply from 212.159.6.10: bytes=32 time=12ms TTL=59
Reply from 212.159.6.10: bytes=32 time=12ms TTL=59
Reply from 212.159.6.10: bytes=32 time=12ms TTL=59
Reply from 212.159.6.10: bytes=32 time=115ms TTL=59
Ping statistics for 212.159.6.10:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 12ms, Maximum = 115ms, Average = 37ms

C:\Users\gw>tracert 212.159.6.10
Tracing route to FWDR-10.FWDR-6.FWDR-159.FWDR-212 [212.159.6.10]
over a maximum of 30 hops:
  1    2 ms    2 ms    2 ms  BThomehub.home [192.168.1.254]
  2    23 ms    11 ms    13 ms  195.166.128.183
  3    12 ms    11 ms    11 ms  212.159.2.164
  4  521 ms    11 ms    11 ms  212.159.0.196
  5    12 ms    11 ms    11 ms  195.166.129.41
  6    12 ms    11 ms    11 ms  FWDR-10.FWDR-6.FWDR-159.FWDR-212 [212.159.6.10]
Trace complete.
But if I try to ping google:
C:\Users\gw>ping www.google.co.uk
Ping request could not find host www.google.co.uk. Please check the name and try
again.
Is this a DNS issue (I cannot change it on the HH5) anyone have any ideas before I unpack the Plusnet router and BTOR modem?
Gary

[#2]

Have you tried setting the DNS servers in Windows rather than using the ones from the router

[#3]

Hello Jim,
thanks for the reply, no I have not tried that as yet but I will try it next time (if I can stop the rest of the family resetting the router)!
Gary

[#4]

There's nothing I can see from our end either.
I'd recommend trying Oldjims advice and failing that connecting up our router and the Openreach modem.

[#5]

Hello,
the same thing happened this morning, I followed Oldjim's advice and changed the DNS on my Windows laptop to 8.8.8.8 and my laptop connected ok.
Its a bit of a pain to change everything (android needs an app), any ideas as to what is causing this?
A hard reset solved the DNS issue as per usual.
Gary

[#6]

Normally we'd recommend setting the DNS in the router to save you having to change it for each device.
I'm not sure if that's possible on a BT Home Hub although I'm sure someone else will know.