Hi Nhung Pham
Apologies for the delay.
I've ordered a replacement router for testing, please allow 24-48hrs for this to arrive.
Let us know how the connection compares with this router.
I have an account with Talktalk and I have noticed that I don't have anymore access to the internet. We have been assured that the service will be without a problem during this period as we need to work from home. I have tried to call Talktalk but obviously no chance. I wonder how to fix this issue. Anyone from Talktalk??? If I don't get any answer, I will leave Talktalk