[tr064] Some channels no longer updated with Fritz OS 07.90-116219 or newer

[Herbie-2005]

The setting:

• Openhab 4.2.2 (within a docker container)
• Fritzbox 7590 with Fritz OS 07.90-116219 or newer (including 08.00)
• Add-on: TR-064
• Thing: tr064:subdeviceLan is ONLINE (green)
• Some Wifi devices are directly connected to Fritzbox 7590 (not to another repeater / access point)
• Corresponding channels "MAC Online ..." are still updated
• Corresponding channels "MAC Wifi Signal Strength ..." and "MAC Wifi Speed ..." are not updated anymore.

Expected Behavior

Channels "MAC Wifi Signal Strength ..." should always be updated and should be a number like 0,1,2,3,4.
Channels "MAC Wifi Speed ..." should always be updated and should be a something like 1200 Mbit/s.

Current Behavior

Channels "MAC Wifi Signal Strength ..." and "MAC Wifi Speed ..." are not updated; they always show "UNDEF".

Possible Solution

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Steps to Reproduce (for Bugs)

1. Use Fritz OS lower than 07.90-116219 ==> Channels are updated.
2. Use Fritz OS 07.90-116219 or newer ==> Channels are not updated anymore.

Context

Openhab pages showing network data do not work correctly anymore.

Your Environment

• Synology linux server with Openhab docker container
• Fritzbox 7590 (mesh master box)
• Fritzbox 7590 AX (mesh client box)

No problems with Fritzbox 7590 AX and TR-064 channels, they are always updated. Problem exists on the Fritzbox 7590 for me only.