About a month ago I had a visit from TalkTalk engineer due to problems with internet connection & speed. It turned out that there was an issue with the line which he contacted BT to sort out and also the router wasn't working correctly, so he changed it. From that point my internet connection was good also the speed. But about two weeks ago, everything starts to repeat, my connection is slowing down, dropping and i have to reset the router.
In addition to this I am now working from home and need a VPN connection, which reading the forum seems like is a common problem. I really need to get it fixed quickly. Any suggestions?