Snom D865 manual Network settings not working (can not edit and save)

Hello,

we just bought 30 Snom D865 to connect with 3cx.

We have a separate Network where the snoms and 3cx are in: 10.1.200.x

So each phone number has the last IP digits e.g. Phone Number 20 = 10.1.200.20

With the shipped OLD Firmware we were able to do the manual settings without no Problems.

But with the new Firmware the WEB-Settings are not accessible:

Here I can access (means entering data) the Option "Options on DHCP=off"

But this is not working for the fields:

• IP Address
• Netmask
• IP Gateway
• Domain
• DNS Server 1
• DNS Server 2

So I can not do an manual IP-Settings..

What is wrong?

DHCP is working but in the Phone Network we do not have DHCP.

Even if I load the System INFO sometimes the page is filled sometimes not:

Just another Topic with another Phone:

Set with factory RESET=DHCP, entering WEB-Page but Menu not Loading...

But if I click on Rest in the Menu the phone is Resetting....

Do we have to buy Chinese Yealink, because German engineers are not able to develop good Software on IP Phones.....

Another Topic: Admin Mode not SAVED:

Greets

Carsten