In general installation it is mentioned that snapshot does not contain GUI and i may have to install it manually.
Any idea when a stable build for this build will be available?
Should i wait till a stable build is available?
Another question is how much difference does it make for PPPoE connection.
Reason being, the stock firmware is taking atleast 3-5 minutes to connect to PPPoE after a reboot. Mostly I have to keep refreshing www.google.com page on one of my device to get it started.
fwiw, I would suggest you use web UI to manage OpenWrt.
Here are some suggestions.
If you installed development snapshot, there is no web UI. You have to download and install LuCI web UI package by connecting WAN port of ea6350v3 to LAN port of your existing internet connected router. This could be tricky given you have edited /etc/config/network file. There are a number of methods to reset OpenWrt to restore the /etc/config/network file to original DHCP on WAN configuration.
Once ea6350v3 has internet connection via your main router, you can SSH and execute these commands:
opkg update
opkg install luci
Alternatively, install OpenWrt 19.07 snapshot because this includes web UI. if you are a Windows user, you can use winscp to transfer OpenWrt 19.07 sysupgrade file to the /tmp folder on the ea6350v3. Then SSH into the ea6350v3 and execute the command to install the upgrade.
19.07 snapshot for ea6350v3 is here https://downloads.openwrt.org/releases/19.07-SNAPSHOT/targets/ipq40xx/generic/
(Important: Use 'sysupgrade' and Not 'factory' file because OpenWrt is already installed in your case) This method is a bit more risky and can brick router especially if you install the wrong file !
@Pilot6 fwiw, I've added a 'temporary' download link to OpenWrt 19.07 snapshot in the instructions for ea6350v3 in the openwrt wiki. Seems like newbies likely to blindly install development snapshot without realising there is no LuCI.
Reverting to earlier kernel version never worked for me other routers such as HH5A without '-F' for force the sysupgrade. eg. 4.14 to 4.9, or 4.9 to 4.4, for HH5A.
Normally when I try to use LuCI to downgrade to an older kernel version (eg. 4.14 to 4.9), LuCI will always show an error message, and refuse to complete the request on other routers I own. I therefore have to use SSH and 'sysupgrade -n -F' command.
I admit I have not yet personally tried to use LuCI or sysupgrade via SSH on my ea6350v3 to install a different release.