Hi This issue was reported with other devices as well. After configuring a RouterOS device with a "WISP AP" setting with "Quick Set" and setting it to "bridge" mode, the web configuration interface (WebFig) becomes inaccessible. I am myself experienced it on a hAp ac^2 ...

I am new to Mikrotik, so I can't tell which RouterOS version introduced this issue, but I can tell what is causing it and how to resolve it. I am running a hAp ac^2 with RouterOS v6.43.10. I believe, the Quick Set WISP AP (and probably the Home AP as well), Bridge mode sets a few configuration items...