I miss hostnames in status/overview and network/wireless. Gui shows only for a few seconds the hostname for some clients. Most times a see only the IP-adress. With older trunk it was working perfect. Is this a known issue ?
nope...no issues...
- are the clients receiving their IPs by DHCP?
- and of course, I surmise that you have hostnames programmed on those clients to be requested with a lease?
are the clients receiving their IPs by DHCP?
I use dhcp for mobil devices and fixed IP's for iot. i have added the hostnames in network/hostnames.
Router is working as a dump-ap.
and of course, I surmise that you have hostnames programmed on those clients to be requested with a lease?
No (fixed IP), but if i go back to r6957 for example i see the hostnames ...!
This screenshot is r7406:
I will flash again r6957 and post the screenshot here.
Now i have flashed r6957:
OK, i have played around. 
When i suspend the ADBLOCK (services/adblock), then Hostname resolution is working fine, therefor it seems to be a problem with adblock