@HJCho What is the model and OS version of your cellphone? Try to restart the smart phone to install the smart bulb. Meanwhile, you can change another smart phone to give it a go. Still the same,...

@Alpe12 Hello, sorry to tell you that the router does not support PHP login method. Good day.

@RouterKing Does the wireless link speed affect the transferring speed via wifi? What is the transfer speed you can get? Try to change the wireless settings of the 2.4GHz, especially the channle and...

@pkz78 Thanks for your reply. Cause you have done some basic troubleshooting but no avail, if possible, we would like to offer a remote session and do further analysis. Please download teamviewer on...

@brokentp Thanks for your reply. Please monitor the details mentioned on my last reply when the connection drops next time. Meanwhile, you can try the suggestions. Any updates, please let us know....

@AshishA Thanks for your reply, glad to hear that it works well. Now you can enjoy the internet with the TP-Link router. Best regards.