Didnt see my model number in the list so I just selected one, sorry 

TL-WR740N/WR741ND extender wont load images or videos and takes long to load pages on apps like Reddit, Instagram and tiktok but works fine for Facebook videos but I get a connection error using messenger.  I haven't noticed where else this happens, but only happens whilst connected to WR740N extender

Also, the download speed caps out at 2-3 mbps but connected to normal wifi up to 20mbps?

I do not know much of this stuff so any help would be great!