try this guide http://www.tp-link.com/en/article/?faqid=492 do as tuto says on step 4 choose Repeater on step 5 choose Universal Repeater

phiroj and nyt1972 on the other thread post #2 here http://forum.tp-link.com/showthread.php?3303-TL-WA5210G-High-Power-Wireless-Outdoor-CPE-problem-with-Ethernet&region=china i posted about the POE,...

have you tried to change polarization by default its Vertical try Horizontal

you post antena model but you dont post how long is your pigtail to 5210

this is not TP LINK support this is the TP LINK forum even on top reads Tech Support forum its just TP LINK forum we all help each other. as Knock posted may have to all go back to TP-Link as from...

http://www.tp-link.com/en/article/?faqid=289 i answered your question, but it would be better if you post what you want to do with 5210