It's amazing, I still can't get my rtl8822ce wifi network card to work in 5G mode. The 2.4G mode works great with my ar750 ext router. when I try to connect to the 5g network it's as if the DNS doesn't resolve the names.
I don't know what to try anymore, can anyone suggest something?
Looks like it can't reach your gateway, can you share the output of ip route when you are connected to 5Ghz? Are other devices able to access the internet when connect to 5Ghz?
Looks like it can't reach your gateway, can you share the output of ip route when you are connected to 5Ghz? Are other devices able to access the internet when connect to 5Ghz?
Yes, as already mentioned, other devices connect in 5ghz mode without problems to the same Ar750s ext router.
The only one that has problems is debian that can only connect in 2.4ghz mode
Yes, as already mentioned, other devices connect in 5ghz mode without problems to the same Ar750s ext router.
The only one that has problems is debian that can only connect in 2.4ghz mode
I would try playing around with your 5Ghz settings on your router specifically "Wireless Channel" and "Channel Width" since you are able to connect but not reach your router.
I would try playing around with your 5Ghz settings on your router specifically "Wireless Channel" and "Channel Width" since you are able to connect but not reach your router.
... and after days of study and work FINALLY came the solution.
As I imagined the problem was the ROUTER AR750s ext. In fact, in the settings of the 5ghz connection it was enough to change the "operating frequency" from AC to N to finally see the transmission of the packets.
Finally my Debian 11 will be able to browse in 5ghz mode.
Thanks to everyone for the availability that allowed me to understand and learn many commands that I did not know, you learn from the problems.
Thank you friends you are the nicest community I have ever found on DEBIAN and linux.
... and after days of study and work FINALLY came the solution.
As I imagined the problem was the ROUTER AR750s ext. In fact, in the settings of the 5ghz connection it was enough to change the "operating frequency" from AC to N to finally see the transmission of the packets.
Finally my Debian 11 will be able to browse in 5ghz mode.
I would try playing around with your 5Ghz settings on your router specifically "Wireless Channel" and "Channel Width" since you are able to connect but not reach your router.
AFAIK you don't need to do anything special to activate it AC on your network card, there are options you can configure. I just switched on my wireless network card and disabled my ethernet connection and I am able to connect to my AC wireless network without needing to configure anything extra on my wireless network card. If you want to use AC I would enable AC on your wireless router and play around with the different "Wireless Channels", just try all channels until starting from the top and then moving down until you find one that works.