Login failed - when trying to auth over internet

E

eXtremer

Getting the hang of it
Oct 22, 2015
102
11
Hi all,

So, I've got a Dahua NVR (NVR2104HS-S2) with 4 cameras connected to it. Everything works fine except authenticating with admin login with Internet Explorer over the internet. I've port forwarded a none standard port to port 80 on the NVR and If I use a browser that doesn't have the plugin installed like Mozilla Firefox I can login successfully, change settings and so on. But If I use a browser with plugin installed like Internet Explorer or Pale Moon I get "Login failed" error. I worked before with Hikvision NVR/Cameras and I didn't have issues with them. Connecting directly to any of the 4 Dahua cameras on port 80 works like a charm, the only problem is with the NVR.

Connecting to the NVR with Smart PSS and gDMSS works just fine, but I need internet explorer too. If using https (443) port I still get Login failed error. Do I have to port forward any other port? Can someone help me with this one?

Using LAN - I can login without a problem.
Using WAN - I get "Login failed"

bRywvg0.png
 
Stop!!! Don't port forward anything. Close the port and setup a VPN server (such as OpenVPN) or your next posts will be "My NVR was hacked"!!!!!
 
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I'm a SysAdmin myself, I know what I'm doing. Connections to ports are allowed only from specific IP's, all other IP's are denied. So nobody can acces my router and everthing behind it.
 
Last edited:
Have you checked the logs on the NVR? Maybe it won’t allow authentication from and external WAN device, is there maybe a setting?
 
IAmATeaf said:
Have you checked the logs on the NVR? Maybe it won’t allow authentication from and external WAN device, is there maybe a setting?
Click to expand...

Using for example Mozilla Firefox, I can login! But if I use any other Browser like Internet Explorer or Pale Moon that has plugin installed I cannot login anymore. So, we cannot talk about authentication issue. Really can't understand what's going on. Logs are ok, no info about login failed.

yXBjeRj.png
 
Last edited:
Greetings!

I have DHI-XVR5116HS-S2 unit fully functional inside the house intranet with the IP 192.168.1.X.
The router has a fixed external IP address assigned (K.L.M.N) and I have also configured the following port forwarding scheme on it:
Y-Y TCP & UDP 192.168.1.X 80-80
I can easily log into the system from inside house Intranet by typing 192.168.1.X to the address bar of Internet Explorer.
However, if I try doing the same from the Internet by typing K.L.M.N:Y to the address bar of Internet Explorer I get the the error:

bRywvg0.png


What can be the root cause of the issue?
How can I try to fight it?

Thank you.
 
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