Hass cannot connect

Installation
1

Hi, I know there are a lot of discussion about, but my problem is quite different.
I am working with HA since added own systems via MQTT, did some automations etc. I am working in IT since years so I am not a beginner.
I have no problem connection from my iMac x86 Ventura and
no problem, from my Laptop Linux Mint lastest version.
But sind some days if I try do enter from my MacBook x86 latest OS release lovelace I get a connection to HA (fixed IP) but the “can not connect, try again 58 seconds” count to 0, retries, can not connect …
I had this once on my iMac (Chromr Browser), did a reset cookies and everything was good again.
But on my MacBook Chrome browser) this worked only once, and some days later same problem, “can not connect …” Same with Safari, Nothing helps, neither clearing cache and/or cookies, neither WLAN or LAN connection, I am complete out of any idea. All the things from other posts are checked. I have the MacBook about 3 years, never any problems, but suddenly now since about 2 weeks.
No entry in home-assistant.log.

Apreciate any hint or help.

Everything is in my privat LAN/WLAN, no access from extern possible. External access only via VPN

Thank you for any tip to solve this problem, HA is latest version and runs as VM on PROMOX latest version. Set up with the HA PROXMOX image

Regards

Rainer

2

I have seen a couple of threads regarding apple devices these past few days.

Could be simply some IOS update that caused it. I don’t own any apple devices, but maybe try this in case it helps.

3

I’d recommend checking out developer tools in the Chrome browser on the machine that’s exhibiting the problem. Take a look at the network tab when you try to connect to home assistant. It will give you a good idea of what’s happening on the network and with the app.

4

The network must be ok, as there is a valid SSL connection to HA, only the next step, connection to lovelace fails.