@Zaber_Monster Take a look at the bottom sticker of the device - if its FW region is "(EU)" then use this link.

@Mariusz11 TL-WA1201 support Passive PoE, while TL-SL1226P is 802.3at/802.3af compliant - check this FAQ.

@Jolza Try if this thread's suggestions will help you to resolve the issue.

@1greg In general connecting a second RE should be done the same way as the first one. Check this post for some important considerations.

@WebGreg Here's the official TP-Link document explaining the DoS protection feature. At the end of the article there's a paragraph (in red text) which explains how to deal with this kind of issue...

@Tot1212 The reason that a particular port is reported closed, means either the port is not opened in router's port-forwarding menu or there is no active service on that port on the device that this...