Having increasingly experienced problems working from home over the last few months, with the modem connection failing whilst using a VPN, appears to bear resemblance to many other posts here but with no clear solution or correlation to what is going on.
I'm sat in front of the router so I can usually see the moment the line drops and goes to flashing amber. Often it reconnects itself within minutes but most recently it sits at solid amber, and often only reconnects when the modem (Hub one) is reset (switched off and on).
I've followed the usual malarky - checking the modem plugged directly into the master socket which makes no difference, unplugging other devices (it appears to stay online fine when there's nothing attached to the internet and the modem is doing little else than blocking unwanted inbound traffic ;).
The line is otherwise very good - easily see 70mbs d/l when in operation. I did try other line filters - and although we only have one phone attached to the line, we have recently unplugged this entirely and the problem still returns. I don't believe the dropouts have anything to do with the line, and Plusnet have confirmed there are no line issues showing.
My instinct after monitoring this situation for weeks is that the modem itself is failing and drops the line when it is dealing with vpn traffic. I know that VPNs can cause problems with some modems due to increased traffic, but I'm not clear why this should cause the modem to drop the connection to the ISP entirely (some internal software error/stack overflow?).
I'm now transferring every device in the household to a MESH system to free up the Plusnet modem, switching off all internal wifi and removing all other hardwired connections from the Hub one, in the hope this limits the issue and restores reliability.
The next step would be purchasing a different modem just to handle the ADSL connection alone. Be useful to know of regular VPN users on plusnet, what modems appear the most reliable.
