I cannot access WebUI(eth0)

Newbie249894 Lv1Posted 20 Aug 2019 17:35

Last edited by Newbie249894 22 Aug 2019 17:55.

I have a problem.
I can't access WebUI and monitor show message "inet select addr failed in snat"
I use SANGFOR Firmware Updater but not found the device.

Thank you.

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yakubi Lv3Posted 23 Aug 2019 14:01
Hi. Try to check the other ports of NGAF for management IP using sangfor firmware updater.
Also try to ping the management IP if you can.
If you can ping. Try to telnet the IP with port 443.
addimasqi Lv2Posted 23 Aug 2019 17:06
is it NGAF? I have an experience like this on the IAM device.  I was guided by the Sangfor partner that IAM has a sub-IP address on ETH0 ( and ETH1 ( and my assume is maybe the NGAF has sub-IP address like IAM.
Apriyanto Lv5Posted 23 Aug 2019 22:26
can you try access via direct cable
Newbie204493 Lv1Posted 26 Oct 2019 11:14
Same issue here cannot access WEB GUI even in management interface.
Jo Lv2Posted 30 Jun 2020 14:57
I have the same issue on NGAF device. Updater unable to detect and also cannot ping. My solution is to configure the IP in the backend on the ports that haven't been assign IP yet.

ETH0 =
ETH1 =
ETH2 =
ETH3 = blank (configure ip on this using backend)

After that you configure your pc's ip to the same range then connect. It should be able to access the Web UI already(If hang then use Internet Explorer). After access the web UI never configure the ip on the new port. If you do, then the port will having the same problem with other port. Just reset to the factory defaults, then should be ok already.
Osama Muhammad Lv3Posted 27 Jun 2022 17:58
Connect it using ETH0 = and try to restore to last latest backup otherwise contact sangfor tech support

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