I have the latest Barrier Breaker version of OpenWRT installed. After the router is started, the internet is accessible for a few minutes and after that the WAN connection just drops. But, during this time the LAN still works properly.
The only way to get the internet connection back is to either reconnect the WLAN interface in the OpenWRT web portal or to restart the router. Checking `dmesg` output before and after the connection drop resulted in no extra information.
I faced the exact same problem with Attitude Adjustment also. Here is the forum post concerning that problem. https://forum.openwrt.org/viewtopic.php?id=52954
Any ideas on how to solve this problem?
Note: I did a 30/30/30 Hard reset just before and just after installing OpenWRT.