@SalmanAnsari Check this post related to your request.

@Nilesh__ In general 2.4GH band is more susceptible to wireless interference and that could be the reason for this behavior. What you could do is to set a static wireless channel on your main router...

@Njaka41 Try the solution from this thread. What's your C50 FW region and its HW version - these could be seen on the device bottom sticker. Also confirm your C50 FW release date/version. Upon...

@Pascal-8 These are pretty much similar to each other - check this comparison. You can use either of them.

@IamDumb Update your WA850RE to the latest FW release - this would probably improve its security and performance. If that doesn't help to connect other devices to the RE, describe the error message...

@NecesarySherbet Make a configuration backup and then reset the router to its factory defaults by holding reset button for about 10 seconds. Then try to update the router firmware again - details....