@LukePL Agree. You have done all the right things except maybe try a known good cable? If a second power supply and a new cable doesn't stabilize things, then I agree you have internal issues. Are...

@guyd2 Sorry, but no.

@SEMED Panašu, kad jūsų OC200 užgeso galbūt dėl maitinimo trikties. Geriausias būdas jį atkurti yra sekti atkūrimo procesą, aprašytą kitame įraše (tikėtina, kad turėsite iš naujo sukurti valdiklio...

@NathanJPhillips Have a look at this thread: https://community.tp-link.com/en/business/forum/topic/634228?replyId=1269906

@NathanJPhillips Ok, that's much better detail, thanks. You CAN use L2TP/IPsec in a client/server method without the client having a static IP. The issue is with the Auto-IPsec branch-to-branch which...

@DanOr Pretty sure this will work, if it's like any other range extender I've used. However, you'll probably want to use a different SSID on the slaved 225 to avoid any Ourobouros-like behaviour....