N900 2.4ghz network drops Internet but 5ghz ok

After browsing several threads on here last night I found a few posts related to the last firmware update that seemed to point to the 802.11B and A protocols not working correctly. I changed my settings to the following based on these threads:

2.4GHz: WPA2 Security (used to be mixed WPA/2); 802.11G+N (used to be B+G+N); 20MHz Only (used to be auto)

5GHz: WPA2 Security (used to be mixed WPA/2); 802.11N (used to be G+N); 20/40MHz Auto

So far I haven’t had the 2.4GHz network **bleep** out on me so I’m hoping these settings stay solid. Unfortunately I had to leave again so fingers crossed it works for everyone else using it at my house. It’s unfortunate that for something billed as such a nice, high-end router it requires this much effort to get working in a somewhat stable condition. I’m used to “set it and forget it” with routers where I only ever have to ocassionaly update firmware to solve small issues.