Hi,
did anybody got openWRT running at Alfa Network R36AH?
I am not sure what the difference to the R36A is?
Kind regards
Serena
Hi @Userin1974
As far as I know, the only differences between R36AH and R36A is extra USB HUB chipset (Terminus FE1.1) and LED connector header in R36AH. You can use R36A image on the R36AH.
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Tanks, after some trial and error I got the latest openWRT release ( 19.07 ) at the R36AH.
I bought a 4G CampPro 2+ set (R36AH + Tube-U4Gv2), works well but has no OpenVPN 
.
With the default firmware I had some trouble, if I tried to install it directly via the web GUI I got this error:
"image invalid"
The "web recovery mode in U-Boot" mentioned here:
https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=af8f0629df080bb057dea6cc77a1faacc648ae0d
did not work (the LAN LED didn't glow).
With this firmware from files alfa com tw "web recovery mode in U-Boot" isn't working:
- FW_4GCampPro2Plus_v0.4-GB_20190306.bin
- FW_R36AH_v1.0-GB_20191028_alfa.bin
But with the older firmware version " FW_R36AH_v0.2-GB_20190102_alfa.bin" "web recovery mode in U-Boot" is working. 
The Tube-U4Gv2 USB QMI LTE modem works also well this way:
https://openwrt.org/docs/guide-user/network/wan/wwan/ltedongle
Kind regards
Serena
How did you manage to install openWRT on your R36AH finally ?
I have Tube-U4Gv2 with R36A and want to install openWRT because I would like to do load balancing (using mwan3 package) between 4G WAN and ethernet LAN.
Hi,
install this Image:
https://files.alfa.com.tw/[2]%20WiFi%20Home%20Router/R36AH/FW_R36AH_v0.2-GB_20190102_alfa.bin
After this step, this will work:
You can use sysupgrade image directly in vendor firmware which is based
on LEDE/OpenWrt. Alternatively, you can use web recovery mode in U-Boot:
- Configure PC with static IP 192.168.1.2/24.
- Connect PC with one of RJ45 ports, press the reset button, power up
device, wait for first blink of all LEDs (indicates network setup),
then keep button for 3 following blinks and release it. - Open 192.168.1.1 address in your browser and upload sysupgrade image.
(Source: https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=af8f0629df080bb057dea6cc77a1faacc648ae0d )
Where can I find or who can tell me which USB adapters or chipsets are supported by open WRT on a ALFA R36AH?
The USB Port of the Alfa R36AH has more power than the ALFA 121u.
With the Alfa 121u I used a HUAWEI E3372 (kmod-usb-net-cdc-ether/usb-modeswitch), but there a active USB HUB was needed to get it stable working.
I didn't test the HUAWEI E3372 with the R36AH, but should word now without additionally voltage.
For ore information look here:
https://openwrt.org/docs/guide-user/network/wan/wwan/3gdongle
sorry, I meant WiFi-USB adapters
Did you make it work? I tried everything but something I am doing wrong... It detects the Tube but never connects...
Note: new alphas today for the camp-pro 4g 2+
https://files.alfa.com.tw/?dir=[7]%20CampPro/4G%20CampPro%202%2B