Can see just very view networks

Hello together!

I have the following troubles with my wlan-adapter (PRO/Wireless 4965 AGN Networc Connection). The Hardware seems to work fine but i can’t see all the possible networks / ESSID’s. For example I can see exactly one ESSID now (of course one of the wrong ones).

Any idea what the problem could be?

btw: i have also seen my own network once, so i don’t think it’s a router-configuration problem.

the adapter is working well with windows as well (>10 ESSIDs).

Thanks for all your help!

Best regards,