Just my 2 penny worth , Have you tried on the ADSL2+ with EVERTHING in your house turned OFF. I have had issues before with LED lights and even USB charger blocks for mobiles going rogue and spitting...

Good luck with the guest SSID bit , never got it to work consistently , gave up , turned Guest wireless off and just put the TV and Media box on the Network , a bonus in one way as I can stream to my...

Hi , Had exactly the same issues a few months ago , don't stress its nothing to worry about , yes you probably do have some errors the VR900 is very sensitive on its reporting of Upstream errors ,but...

You need to setup DHCP range and allow some free addresses so you can then allocate the IP addresses that are free to specific devices.

Is it a VR600 or VR400 ? Probably due to the link speed of Laptop to VR on wireless , try it on the LAN port to Laptop and do a speed test .

Not sure but I have VR900v2 on Talk Talk , I get 76 down and 19 up on an 80/20 line . they call it Fibre to the Cabinet on Talk Talk , same phone line as normal ADSL they call it VDSL 2 , simply...