Blabababa Ally Member
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hmm..this is a quite old model that zyxel has. From the symptom it looks like the bootbase in NVRAM was damaged, not sure if this is HW broken issue. You have another functional WAP3205 to crosscheck if the U-Boot command works?
What firmware version are you using? Now the current release is v4.39.
BTW. There's a post related to password reset in business forum, you may try in this way and reset the password.
in USG20 passwd change prompt not accepting pass Comment by Blabababa August 2020
Which Zyxel model are you using and how the Philips hue bridge connect to this Zyxel device? Maybe you can draw us the topology and describe more detail about the symptom "no function"
Only the https service (portal?) has accessing problem or all the services cross different LANs will be blocked?
What's your firmware version and what if you turn off all the firewall functions? Will the web service work fine when crossing diff…
No, it can't be used as a standalone printer
Yes. You simply press on the reset button for few seconds and release it. And you will get a device with factory config.
You can consider USG20-VPN
I'm not a German people, just searched by google and found some clues below:
The username should be in the format: Anschlusskennung (12 digit number) T-Online Nummer(12 digit number) Mitbenutzernummer (4 digit number) in SBG3500-NB00 how to configure VDSL? Comment by Blabababa April 2019
There's no certain feature on USG50, but I have some workarounds and you may have a try.
1. Use IP/MAC binding with shrink DHCP pool
2. Use Auth. Policy to reject those not authenticated users