@thefunkygibbon Thanks for your feedback, our engineers are working on it and will email you later to follow up. Please check your inbox.

@Cobalco Sorry to hear that, you can give seller a call to verify the warranty. Any further problem, please let us know.

@Alan062 Thanks for your cooperation and reply. From the wired speed, the M4 should be working properly. I think it is more related to the wireless negotition speed obtained by wireless devices which...

@Unk What is the current network topology/diagram？ Do you use the Archer VR600 as 3/4G router mode with a 4G dongle? The VR600 supports Tether app in regular DSL modem router, but cannot use it to...

@Busta Thanks for your reply. Great to know that it works fine. You can enjoy the internet with our TP-Link router now. If need any further help, do not hesitate to contact us.

@leandersc What are the model numbers of the 2 routers? Are they both TL-WR841N? What is the current network topology/diagram? How do you connect them together? And what are their operation mode...