@Malchambar Hello Martin, we received some similar cases recently, but we failed to reproduce it at our lab. If possible, please provide more details so that we can do further analysis and locate the...

@GrahamR Try to connect your computer to the modem/internet source directly and remove the BT router, then please setup a PPPoE connection on your computer with the username and password from BT and...

@Keijsers We will do some troubleshooting first and try to locate the issue and fix it. What is the current network diagram? How do you connect these devices together? Who is your internet service...

@pl_svn It seems that the negotiation speed drops down to the 100mbps, not the gigabit which causes the reduction of the actual speed. We will do some troubleshooting to locate this issue and try to...

@Vladek Does your USB dongle/sim card support 4G? If not, the router may not work once it detect the 4G signal. Cause it works well in 3G mode, you can try to create the connection profile manually...

@gratefulfrog Hi Bob, below is the compatibility list of the Tether app. https://www.tp-link.com/tether_compatibility_list/ Please verify whether the TL-WA850RE supports it. Note: Please check the...