Go to Advanced---Network---Internet. Edit the connection which is working in the table.
Check the Connection Mode and ensure it is Always On.

If it is correct but the router still disconnects from the internet, check Internet and DSL section on Status page. Provides screenshots pls.

Thank for the reply.

Always on set to on
Rest the idle time from 15 minutes to 0.

Here is the DSL snapshot.




I will try these for a couple of days to see if connection remains live. I wil get back to you and let you know eihter way.
ErnieK

Hi Ermiek, check Internet and DSL section on Status page if the problem continues.
I'm not asking for screenshot of DSL Settings page...lol

OOPs! sorry. Thats's what I get for rushing. Still disconnecting.

Will post [correct] screenshots later today when I come back in. Just had BT and ISP [Eclipse] check line etc and no faults showing with either of them.

Solved [hopefully]

After full hardware checks - changing cables and telephone sockets etc plus getting BT to check my phone line I studied the logs and eventually it dawned on me that the error dates were showing as follows:
"1970-01-1 00-00-42" or in other words the first of January 1970.

I then contacted my ISP a second time and they checked thier logs against BT's were showing differnt results. The ISP logs showed over 100 line drops since beginning of August. So problem must have been there before the purchase of the VR900 but line was reconnecting automatically for majority of these and only became obvious witht the installation of the VR900. They also had never heard of a new router showing a date that was over 45 years out of date and this was after setting the date using both choices [PC date and Internet time]. Then for no obvious reason the date set correctly after running with the 1970 date for over 1 week. None of us could figure out why this happened, anybody any ideas? After the correct date started to show in the logs I continued to get dropped connections.

My ISP then did a few more tweaks\fixes at thier end yesterday. Since then there has no been a dropped line.

So the issue resolved and everything OK at the moment. But if anyone has any possible ideas as to the 1970 date please let me know.

Once again thank you for your input and help.

Hi Ive just purchased this router and really like it, but i too am having the same issue at certain times of the day the 1970-01-1 00-00-42 log occurs, ive contacted BT my ISP and they say everything is ok there end, but i have no idea if they have tested or not. Does anyone else have this issue or has a fix for the issue? the original BT hub works ok so i am not sure its just the ISP.
Nigel

I purchased Archer D9 last week and that also has the 1970 date. I only just noticed it in the System Log after updating the firmware. Strange!!