@Tooth Thanks for the update, hope you could resolve the problem.

@glpgmt Hi, you mean whitelist ports for outgoing traffic to internet or for incoming traffic from external network? There is no related settings for the former one, but for the latter, please check...

@Craige_Davido Hi, when using the 1.7.0 firmware, did you get similar speed if you ignore the 4G+ LED? It is okay to stay the 1.6.0 firmware if the speed is better by using the same band.

@DavidKlima @Rach1974 Hi, you mean speed drops or internet disconnects completely? Please share with us screenshots of the whole Status page and system log file when the issue happens.

@Tntboy Hi, the 5GHz Wi-Fi on VR600 was working fine before, right? Please check on all your 5GHz WiFi client to see if it is not available on all of them. Please also let us know the current...

@ArtfulCodger If the TP-Link router is connected to your ISP router and both are working in router mode, you will need to connect directly to the TP-Link Router to access its web management page.