Hi, Sorry to tell you that we can not find the mac address via the serial number. While generally speaking, the MAC address is printed on the bottom label or the box package. If you still have the...

Hi, Thanks for your feedback, with devices plugged into the LAN ports but the ethernet leds do not come on, there may have something wrong. And you said you got replacement, but still the same thing?...

Hi, What is the model number and hardware version of the device? Please connect your cellphone to the TP-Link's wifi and then test whether it can be found. Good day.

Thanks for your reply, if need more help in the future, do not hesitate to contact us.

Hi, Thanks for your reply. Just take your time to install it and test the performance. Any updates, please let us know. Nice day.

Hi, Do you want to connect the 841N to the VPN server to access internet or you just want to connect to the VPN server to access the local sources? While if you want to select L2TP as internet...