In short
Hik-Connect says your NVR or camera is offline? Check the Register Status, router and DNS settings, and firewall, with Hikvision's own steps. Singapore guide.
When Hik-Connect shows your recorder or camera as “Offline”, the device has lost its link to Hikvision’s Hik-Connect server. The cameras may still be recording normally. Usually the device has the wrong network settings, can’t reach the internet, or a firewall is blocking it. Start by checking the Register Status on the device itself, then its IP address, gateway and DNS settings.
Hik-Connect is Hikvision’s app for watching your CCTV from a phone. When it stops working, the first worry is usually “Is my CCTV still recording?” This guide answers that first. It then walks through the checks Hikvision recommends, in the order we use them when customers call us.
Key Takeaways
- “Offline” in Hik-Connect means the device cannot reach the Hik-Connect server. It does not by itself mean the cameras have stopped recording.
- Check the Register Status under Platform Access on the recorder or camera first. If Hik-Connect is not enabled there, enable it.
- After a router or broadband change, the device’s IP address, gateway or DNS server often no longer matches the new network. In our experience, fixing these settings solves most cases.
- Hikvision suggests testing the connection from a PC on the same network with
ping dev.hik-connect.comand a telnet test to port 8555. - If the app asks you to unbind or share the device, it is still registered to another Hik-Connect account.
What does “device offline” mean in Hik-Connect?
“Device offline” means the Hik-Connect app cannot reach your NVR, DVR or camera through Hikvision’s cloud server. The app only shows what the server reports, so the problem is almost always between the device and the internet: Platform Access is switched off, the device has the wrong IP, gateway or DNS settings, or a firewall blocks the connection.
Hikvision’s own troubleshooting guide for this error starts on the device, not in the app. Its first step is to open the device’s settings and look at the Register Status.
Before you change anything, check that your cameras are still recording. On the recorder’s monitor, open Playback and look for footage from the last hour. If footage is there, your CCTV is working and only remote viewing is down. If there is no recent footage, you have a recording problem as well. Our CCTV maintenance checklist covers how to check the hard disk and recording schedule.
Is the problem the app, the recorder or the internet?
If every device is offline, suspect the site’s internet or router. If one recorder is offline, check that recorder’s Platform Access and network settings. If one camera channel is offline, check that camera and its cable. The table below covers the common cases, based on Hikvision’s troubleshooting steps and the fault calls we handle.
| What you see | Most likely cause | First thing to try |
|---|---|---|
| Every device in the app is offline, at home and on mobile data | The site’s internet is down, or the router was changed | Check that other devices at the site can browse the web |
| One recorder offline, other devices fine | Platform Access disabled, or wrong IP, gateway or DNS on the recorder | Check the Register Status on the recorder |
| Recorder online, but one camera channel offline | Camera cable, PoE port or camera fault | Check the camera on the recorder’s own monitor |
| Offline after you changed broadband provider or router | Recorder still has settings from the old router | Check IP, gateway and DNS (see below) |
| Offline after a power cut | Recorder started before the router, or a Wi-Fi device lost its connection | Restart the router first, wait, then restart the recorder |
| Adding the device asks you to unbind or share | Device is registered to another Hik-Connect account | Ask the original account owner, or see the section below |
How do I check the Register Status on my NVR or camera?
Open the device’s network settings and find Platform Access. Hikvision’s guide gives the web path as Configuration > Network > Advanced Settings > Platform Access. On an NVR’s local menu, Hikvision US support gives System Configuration > Network > Advanced > Platform Access. The Register Status field there should read “Online”.
You can view this page in three ways:
- On the recorder’s own monitor, using the mouse that came with it (the “local GUI”).
- In a web browser on a computer on the same network, by typing the device’s IP address (the “web GUI”).
- With Hikvision’s SADP tool, which finds Hikvision devices on your network and shows their IP addresses.
What to do with the result:
- Enable box not ticked: tick it, save, and check the Register Status again.
- Enabled but still offline: the device can’t reach the server. Move on to the network checks below.
- Online on the device, offline in the app: close and reopen the app, check your phone’s internet connection, and make sure you are signed in to the account the device was added to.
Menu names vary a little between firmware versions and between NVRs, DVRs and cameras. If you can’t find Platform Access, look for “Hik-Connect” in the network settings.
How do I fix Hik-Connect offline after changing my router?
After a router change, check that the recorder’s IP address, subnet mask and default gateway match the new router’s network, and that it has a working DNS server. Hikvision suggests DNS 8.8.8.8 or your usual local DNS address. A recorder still set up for the old router can’t reach the internet, so Hik-Connect shows it as offline.
In our experience this is the most common cause of Hik-Connect offline calls in Singapore. It happens when a home or office switches broadband provider or gets a replacement router. The new router may use a different address range from the old one. A recorder with a fixed (static) IP address from the old range can no longer reach the gateway.
Hikvision’s guide gives the path Configuration > Network > Basic Settings > TCP/IP for these settings. Hikvision US support suggests this sequence on an NVR:
- Go to System Configuration > Network and note the current IPv4 address.
- Enable DHCP and save. If DHCP is already on, turn it off, save, turn it back on and save again.
- Check whether the IPv4 address has changed. If it has, the recorder has picked up an address from the new router.
- Turn DHCP off again so the address stays fixed. Then set the Preferred DNS to 8.8.8.8 and the Alternate DNS to 8.8.4.4, and save. If you can, change the fixed address to one outside the router’s DHCP range (our recommendation), so the router never gives it to another device.
Give the device a couple of minutes after saving, then check the Register Status again. If you use remote viewing on a computer as well, our guide to the Hikvision app for PC and laptop explains how to add the device there.
Why does Hik-Connect go offline after a power outage?
In our experience, the most common cause after a power cut is the start-up order. If the recorder starts before the router has a working internet connection, or before it has handed out addresses, the recorder can come up without a working connection. Restart the router first, wait until the internet works, then restart the recorder. Then check the Register Status.
Other causes we see after power cuts:
- Wi-Fi cameras and doorbells that did not reconnect to the Wi-Fi network. Restart them after the router is back online.
- An address conflict. The recorder has a fixed address inside the router’s DHCP range, and the router gave that address to another device while the recorder was off. A fixed address outside the DHCP range prevents this.
- A damaged power adapter or PoE switch after a surge. If the recorder or a camera does not power on at all, it needs a technician.
If your building has frequent power trips, a small UPS for the router and recorder keeps them running through short interruptions.
How do I test whether my network is blocking Hik-Connect?
Use a Windows PC on the same network as the recorder. Open Command Prompt and run ping dev.hik-connect.com. Hikvision’s guide says a reply means the DNS settings work. Then run telnet dev.hik-connect.com 8555. If telnet fails, a firewall may be blocking the connection between the device and the Hik-Connect server.
A few notes on these tests:
- Telnet is off by default in Windows. Hikvision’s guide notes you have to turn it on first, under Turn Windows features on or off.
- Ping shows an address but no replies? Then DNS is working; some networks simply block ping replies. The telnet test to port 8555 is the better check for a firewall.
- Office networks are the usual suspect, in our experience. Company firewalls and some managed building networks block outgoing connections on uncommon ports such as 8555. Ask your IT team to allow the recorder to reach the Hik-Connect server.
If both tests pass but the device is still offline, the problem is likely on the device itself. Updating the firmware to the latest version for your model is the next step we recommend. Do it carefully: use only firmware for your exact model, from Hikvision or your installer, and don’t switch off the power during the update.
What if the device is added to another Hik-Connect account?
When you add a device by serial number and the app asks you to either unbind or share, Hikvision US support says the device has already been added to another account. The original owner must remove or share the device, or the device must be unbound before you can add it.
This often happens when you move into a home or take over a shop with a CCTV system already installed. It also happens when the previous installer set up Hik-Connect under their own account. When you add a device manually, Hikvision says you need the 9-character serial number, with any letters in capitals, and the device verification code. Our Hik-Connect app guide shows the adding steps.
If you see a DDNS-related message instead, our article on the device not registered in the DDNS error explains that separate issue.
Should I use port forwarding instead of Hik-Connect?
For most homes and small businesses, no. Hik-Connect connects through Hikvision’s server, so you don’t need to open ports on your router. Port forwarding exposes the recorder directly to the internet, so it needs strong passwords and up-to-date firmware.
The Cyber Security Agency of Singapore advises owners of internet-connected devices to consider whether each device needs internet access and to turn off features they don’t use.
If you or your installer have already set up port forwarding, review it. Make sure the recorder’s admin password is strong and unique, and remove forwarding rules that are no longer used. On Hikvision devices, change the password from the user management menu.
When should I call a CCTV technician?
Call a technician when the recorder or a camera has no power, when you cannot get into the recorder’s menu because nobody knows the admin password, or when the device is online on the network but stays offline after you have checked Platform Access, DNS and the firewall. These cases often need on-site tools or a password reset.
Also get help if the offline problem keeps coming back. A recorder that drops off every few days may have a failing power adapter, a faulty network cable or a router problem. A technician can check all three in one visit. Our list of common CCTV camera problems and solutions covers other faults you may see at the same time.
Frequently asked questions
How long does it take for Hik-Connect to come back online?
After you fix the settings and save, give the device a few minutes, then check the Register Status on the device. If it still shows offline after a restart, go through the network checks above.
Can I use Hik-Connect without internet at the site?
No. Remote viewing through Hik-Connect needs the recorder to have an internet connection. Without one, you can still view and play back footage on the recorder’s monitor.
What is dev.hik-connect.com?
It is the Hik-Connect server address that Hikvision’s troubleshooting guide uses for its connection tests. You will see it in the Server IP field under Platform Access.
Need help with Hik-Connect?
CCTVSG installs and supports Hikvision CCTV systems for homes and businesses in Singapore. If your recorder stays offline after these checks, we can help remotely or on site. See how to get remote support, contact us, or request a quote for a new system.
Sources
- Hikvision, “How to Solve Hik-Connect Offline Issue” (FAQ; we checked the 3-page version of this guide): https://www.hikvision.com/content/dam/hikvision/en/support/faq/How-to-solve-Hik-Connect-offline-issue.pdf
- Hikvision US Support, “Why is my Platform Access offline?” (modified 18 October 2022): https://supportusa.hikvision.com/support/solutions/articles/17000128685-why-is-my-platform-access-offline-
- Hikvision US Support, “How do I add devices manually to the HikConnect app?”: https://supportusa.hikvision.com/support/solutions/articles/17000130024-how-do-i-add-devices-manually-to-the-hikconnect-app-
- Cyber Security Agency of Singapore, Advisory AD-2024-012 “Protecting Your IoT Devices” (5 June 2024): https://www.csa.gov.sg/alerts-and-advisories/advisories/ad-2024-012/
Frequently asked questions
- What does “device offline” mean in Hik-Connect?
- “Device offline” means the Hik-Connect app cannot reach your NVR, DVR or camera through Hikvision’s cloud server. The app only shows what the server reports, so the problem is almost always between the device and the internet: Platform Access is switched off, the device has the wrong IP, gateway or DNS settings, or a firewall blocks the connection. Hikvision’s own troubleshooting guide for this error starts on the device, not in the app. Its first step is to open the device’s settings and look at the Register Status.
- Is the problem the app, the recorder or the internet?
- If every device is offline, suspect the site’s internet or router. If one recorder is offline, check that recorder’s Platform Access and network settings. If one camera channel is offline, check that camera and its cable. The table below covers the common cases, based on Hikvision’s troubleshooting steps and the fault calls we handle.
- How do I check the Register Status on my NVR or camera?
- Open the device’s network settings and find Platform Access. Hikvision’s guide gives the web path as Configuration > Network > Advanced Settings > Platform Access. On an NVR’s local menu, Hikvision US support gives System Configuration > Network > Advanced > Platform Access. The Register Status field there should read “Online”. You can view this page in three ways: On the recorder’s own monitor, using the mouse that came with it (the “local GUI”).In a web browser on a computer on the same network, by typing the device’s IP address (the “web GUI”).With Hikvision’s SADP tool, which finds Hikvisi
- How do I fix Hik-Connect offline after changing my router?
- After a router change, check that the recorder’s IP address, subnet mask and default gateway match the new router’s network, and that it has a working DNS server. Hikvision suggests DNS 8.8.8.8 or your usual local DNS address. A recorder still set up for the old router can’t reach the internet, so Hik-Connect shows it as offline. In our experience this is the most common cause of Hik-Connect offline calls in Singapore. It happens when a home or office switches broadband provider or gets a replacement router. The new router may use a different address range from the old one. A recorder with a f
- Why does Hik-Connect go offline after a power outage?
- In our experience, the most common cause after a power cut is the start-up order. If the recorder starts before the router has a working internet connection, or before it has handed out addresses, the recorder can come up without a working connection. Restart the router first, wait until the internet works, then restart the recorder. Then check the Register Status. Other causes we see after power cuts: Wi-Fi cameras and doorbells that did not reconnect to the Wi-Fi network. Restart them after the router is back online.An address conflict. The recorder has a fixed address inside the router’s DH
- How do I test whether my network is blocking Hik-Connect?
- Use a Windows PC on the same network as the recorder. Open Command Prompt and run ping dev.hik-connect.com. Hikvision’s guide says a reply means the DNS settings work. Then run telnet dev.hik-connect.com 8555. If telnet fails, a firewall may be blocking the connection between the device and the Hik-Connect server. A few notes on these tests: Telnet is off by default in Windows. Hikvision’s guide notes you have to turn it on first, under Turn Windows features on or off.Ping shows an address but no replies? Then DNS is working; some networks simply block ping replies. The telnet test to port 855
- What if the device is added to another Hik-Connect account?
- When you add a device by serial number and the app asks you to either unbind or share, Hikvision US support says the device has already been added to another account. The original owner must remove or share the device, or the device must be unbound before you can add it. This often happens when you move into a home or take over a shop with a CCTV system already installed. It also happens when the previous installer set up Hik-Connect under their own account. When you add a device manually, Hikvision says you need the 9-character serial number, with any letters in capitals, and the device verif
- Should I use port forwarding instead of Hik-Connect?
- For most homes and small businesses, no. Hik-Connect connects through Hikvision’s server, so you don’t need to open ports on your router. Port forwarding exposes the recorder directly to the internet, so it needs strong passwords and up-to-date firmware. The Cyber Security Agency of Singapore advises owners of internet-connected devices to consider whether each device needs internet access and to turn off features they don’t use. If you or your installer have already set up port forwarding, review it. Make sure the recorder’s admin password is strong and unique, and remove forwarding rules tha
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