Unable to connect on WAN

TonyR said:
I realize this may not be related to your issue but when I saw that your DDNS is "NO-IP" I could not remain silent.

Don't be surprised if NO-IP screws you in the near future.
In Oct. 2023, I have had their "Enhanced Dynamic DNS" with up to 25 hostnames for 10 years, since Nov. 2013.
They billed my credit card $22 every year and in 2016 it went up to $24.95 per year...no problem.
It remained at $24.95 per year for 7 more years until Oct. 2023 when it jumped to $59.99 per year....no email, no warning....a 140% increase!
No way would I have approved that.

So I called them. They have no special extension for billing. They say go online to fill out a ticket, so I did, got a ticket number.
Waited a week, no response so I logged in and looked.....no ticket!

I cancelled of course but I was paid up for a year whether I liked it or not.
Bottom line? NO-IP is a bunch of crooks disguised as a legitimate DDNS provider.

Second, my recommendation for a decent DDNS:

I am an IPCT+ Gold member and for $8 per month I get several bonuses, among them an ad-free experience but also 10 DDNS hostnames! I've used them several years now and they work great. It also provides a server watchdog that lets me monitor 3 Blue Iris VMS servers and alerts me if one goes down. Your monthly fee also helps support the IPCT forum and I highly recommend that. You can get the upgrade here.

For $5 per month you can be a Silver member and get 5 DDNS hostnames and also the ad-free experience, 5 server watchdog monitors and more. :cool:
Click to expand...
I understand your experience. However, I have two different BI servers—with the same versions and using the same NO-IP service. One works perfectly, but the other doesn't. I assume the problem isn't NO-IP.
 
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SDK_Log.log below shows error:
Begin Time:2026-10-10T15:47:24.885
[2026-10-10T15:47:24.885 info Netsdk:41296 16192:17920 Utils.cpp:4815]mutil NIC client
[2026-10-10T15:47:24.885 info Netsdk:41296 16192:17920 AVNetSDKMgr.cpp:658]Test load avnetsdk err 126
[2026-10-10T15:47:24.885 info Netsdk:41296 16192:17920 dhnetsdk.cpp:159]Leave CLIENT_InitEx.
[2026-10-10T15:47:24.885 info Netsdk:41296 16192:17920 dhnetsdk.cpp:190]Enter CLIENT_SetAutoReconnect:[cbAutoConnect=000000014069E1D0, dwUser=00000000054E25C8].
[2026-10-10T15:47:24.885 info Netsdk:41296 16192:17920 dhnetsdk.cpp:192]Leave CLIENT_SetAutoReconnect.
[2026-10-10T15:47:24.885 info Netsdk:41296 16192:17920 dhnetsdk.cpp:389]Enter CLIENT_SetDVRMessCallBack: [cbMessage=000000014069E0B0, dwUser=00000000054E25C8].
[2026-10-10T15:47:24.885 info Netsdk:41296 16192:17920 dhnetsdk.cpp:391]Leave CLIENT_SetDVRMessCallBack.
[2026-10-10T15:47:24.885 info Netsdk:41296 16192:17920 dhnetsdk.cpp:6911]Enter CLIENT_GetLastError.
[2026-10-10T15:47:24.885 info Netsdk:41296 16192:17920 dhnetsdk.cpp:6914]Leave CLIENT_GetLastError.[Error code=0.]
Begin Time:2026-10-10T15:48:08.433
[2026-10-10T15:48:08.433 info Netsdk:41296 16764:15864 Utils.cpp:4815]mutil NIC client
[2026-10-10T15:48:08.434 info Netsdk:41296 16764:15864 AVNetSDKMgr.cpp:658]Test load avnetsdk err 126
[2026-10-10T15:48:08.434 info Netsdk:41296 16764:15864 dhnetsdk.cpp:159]Leave CLIENT_InitEx.
[2026-10-10T15:48:08.434 info Netsdk:41296 16764:15864 dhnetsdk.cpp:190]Enter CLIENT_SetAutoReconnect:[cbAutoConnect=000000014069E1D0, dwUser=0000000003F780A8].
[2026-10-10T15:48:08.434 info Netsdk:41296 16764:15864 dhnetsdk.cpp:192]Leave CLIENT_SetAutoReconnect.
[2026-10-10T15:48:08.434 info Netsdk:41296 16764:15864 dhnetsdk.cpp:389]Enter CLIENT_SetDVRMessCallBack: [cbMessage=000000014069E0B0, dwUser=0000000003F780A8].
[2026-10-10T15:48:08.434 info Netsdk:41296 16764:15864 dhnetsdk.cpp:391]Leave CLIENT_SetDVRMessCallBack.
[2026-10-10T15:48:08.434 info Netsdk:41296 16764:15864 dhnetsdk.cpp:6911]Enter CLIENT_GetLastError.
[2026-10-10T15:48:08.434 info Netsdk:41296 16764:15864 dhnetsdk.cpp:6914]Leave CLIENT_GetLastError.[Error code=0.]
 
rauska2 said:
I understand your experience. However, I have two different BI servers—with the same versions and using the same NO-IP service. One works perfectly, but the other doesn't. I assume the problem isn't NO-IP.
Click to expand...
You may find this interesting:

C

Thread 'Blue Iris won't load after Windows 11 update March 2026 - avnetsdk err 126'

Hi,
Blue Iris was working fine on 5 cameras before a Windows 11 update recently. After the update BI launches briefly but wont load the full app and in Task Manager shows it suspends and closes. No main log file is being created.
Error from sdk_log:AVNetSDKMgr.cpp:658 — Test load avnetsdk err 126

I've already tried:
  • Reinstalled all Visual C++ runtimes using VisualCppRedist_AIO_x86_x64
  • Fresh reinstall of Blue Iris to C: drive
  • Checked Windows Defender quarantine — nothing there
  • avnetsdk.dll cannot be found anywhere on my system

BI is installed on C:, data/clips are in...
 
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TonyR said:
You may find this interesting:

C

Thread 'Blue Iris won't load after Windows 11 update March 2026 - avnetsdk err 126'

Hi,
Blue Iris was working fine on 5 cameras before a Windows 11 update recently. After the update BI launches briefly but wont load the full app and in Task Manager shows it suspends and closes. No main log file is being created.
Error from sdk_log:AVNetSDKMgr.cpp:658 — Test load avnetsdk err 126

I've already tried:
  • Reinstalled all Visual C++ runtimes using VisualCppRedist_AIO_x86_x64
  • Fresh reinstall of Blue Iris to C: drive
  • Checked Windows Defender quarantine — nothing there
  • avnetsdk.dll cannot be found anywhere on my system

BI is installed on C:, data/clips are in...
Click to expand...
I uninstalled BI and cleared all REG entries for Blueiris. Now it is working ! After installing fresh copy !
  • HKEY_LOCAL_MACHINE\SOFTWARE\Perspective Software
  • HKEY_CURRENT_USER\SOFTWARE\Perspective Software
 
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Since UI3 works over WAN and the app works fine on LAN, I’d start by checking the port forwarding and remote connection settings for the app. UI3 working doesn’t necessarily mean the app is using the same connection settings. Also, make sure the WAN address and port configured in the app match what Blue Iris is actually listening on. If everything looks right, try connecting through a VPN to see if it makes any difference. That might help narrow down whether it’s a routing or configuration issue.
 
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