Dear Sirs,

I have three Deco M9 Plus that have worked great the last years.
However, since last week, I am no longer able to access certain web sites (mostly located in Sweden where I am based).

Examples are:

https://lund.se/
https://www.landshypotek.se/

Most other websites work fine, including Swedish sites.

I have reset the device twice (using the app and using the button), but it did not help.
I have the same problem using all devices and browsers (iPhone, Android phone, Windows 11 PC, iPads).
If I bypass the M9 Plus device (ethernet cable directly from modem to PC), I can access these websites without issues.
I do not use Parental Control.
My Block List is empty.

I have disabled all protection (malicious content filter, intrusion prevention system and infected devices quarantine), but it did not resolve the issue.
I have changed Operation Mode to Access Point and this solved the access issue. However, with this mode, I could not connect to the Wi-Fi using my iPhone and iPad.

Any help would be greatly appreciated.

Best Regards,
Gunnar