@SRS77 When the problem occurred, have you tried to connect the client to CPE lan port directly？ Because the wireless connection can work normally， the CPE should be normal. Did you try to ping these...

@Spartacone I think TP-Link staff won't reply to non-English post, so i suggest you could try to post in English. I use Google translation to try to understand your sentence, I guess you set dynamic...

@ALPL-IT What did you mean hangs？ would WBS510 be brick？Or the wireless connection loss？

@alfredudu Hello， I seem to never see such posts， could can help me find these posts link？I would like to have a check. According to my experience, the link backup doesn't work because of the wrong...

@Zmurfen CPE210 send side can be set as AP Mode. CPE210 receive side cab be set as client mode. You can refer to the following FAQ to set AP/Client mode. https://www.tp-link.com/en/support/faq/730/...

@Halo First. i will explain the differences among the four devices, then i will give my suggestion. CPE210 is the same as CPE220. They only support 2.4GHz. but CPE220 has a higher gain antenna....