The Quick setup of 5210 has some problem. So Don't use Quick setup to configure!!! Reset the 3 AP and use wireless menu to re-configure them step by step. Have you try that?

Users should have a basic knowledge of WDS and OSI if he requires for wireless transparency. And he can find "enable WDS" option in wireless menu of TL-WA7510N in Client mode. Well, anyway, here I...

Don't use bridge mode on TL-WA7510 and TL-WA5210G. 1) Use AP + Client instead. You can enable WDS on the Client if you require transparent communication on Layer 2. 2) Use AP + Universal Repeater...

If you connect a PC directly to the switch, can it get internet access? What mode is the 3 TL-WA5210G working in? For Access Point mode, don't use Quick setup to configure!!! Reset the 3 AP and use...

if I set manually I could access internet but could not log-in on the first AP .254. Mm..that is really strange. Static IP works means at least the link is still fine. But dhcp communication fail to...

Yes TL-ANT2409A can work with TL-WR642G