HI All!

This is my first post here... and first with a problem.

Year ago I bought Archer C2300 v2 as a replacement for broken Netgear r7400 v2. At first new router worked fine. I was happy about how 5G worked. II saw that I can use various of channels in there but as a lazy guy I stayed with auto setting which worked well. Since last upgrade I have spotted that my WiFi dropps its capacity and losts packets. Then I thought, ok. someone is using the same channel as me so I'll play with it to resolve the issue. But how I was supprosied when Opened advanced wifi setting on my Archer C2300 and when I saw that I have only 4 channes to pick (36-48),

Can any one of you tell me if you had similar issue?

Thanks! Best regards