@Heppeno As far as I know, the Time Limits can be set to 30mins intervals, please confirm:

@Scaz What's the Tether app version, and how about the phone OS? Ensure the Tether app is up-to-date. You may try to confirm with a different phone OS.

@Inquisit0r That's fabulous, glad to hear that the issue is resolved now, this will help others who may encounter the same issue.

@Noo8ie Yes, our engineers would like to work this with you, they will try to help you out. Please check the email box and discuss this with them.

@bikoo Was there any change in the network? Please refer to the guide below to reconfigure the PPTP VPN settings on the VR400: https://www.tp-link.com/support/faq/1751/ If this still fails, please...

@Hobbitbiker May I have the firmware of the VR2800? Please check and ensure it is up-to-date: https://www.tp-link.com/support/download/archer-vr2800/#Firmware What is the brand and model of the...