Internet Not Working in the Office | Business Network Support Belgrade

When an internet issue stops business

An internet issue in the office is not just a technical fault. If email, cloud applications, fiscal systems, VPN, shared folders, video calls or business applications are unavailable, the whole company quickly slows down or stops.

The cause is not always the internet provider. The issue can be the router, firewall, switch, WiFi access points, cables, DNS settings, VPN configuration or an overloaded network.

That is why the issue should not be handled randomly. First we need to determine whether internet is unavailable for everyone, only one computer, only WiFi users or only specific services.

Common symptoms

internet is not working in the whole office
wired internet works, but WiFi does not
WiFi is visible, but there is no internet
internet is slow
connection keeps dropping
Outlook cannot send or receive email
cloud applications do not open
VPN is not working
shared folders are unavailable
network printers are not working
only some computers have internet
guest WiFi works, but employees have no internet
internet works on phones, but not on computers
one part of the office has no WiFi signal

What you can check before calling us

Before reporting the issue, it is useful to check a few basic things. This often helps identify whether the issue is local, network-related or with the provider.

whether one user or the whole company is affected
whether internet works through a mobile phone or another network
whether the router, modem and switch are powered on
whether network equipment lights are on
whether wired internet works but WiFi does not
whether someone moved cables or equipment
whether there was a power outage
whether the internet bill has been paid
whether there are provider notifications
whether the issue started after equipment or configuration changes

We do not recommend random resetting of firewalls, routers or network equipment if you are not sure what the device does, because this can interrupt business further or erase important settings.

What NBG TEAM checks

Internet provider and modem

We check whether there is signal, whether the modem receives internet, whether there is a provider outage and whether the issue is outside your office network.

Router and firewall

We check basic settings, NAT, DNS, DHCP, VPN, access rules, device load and whether the firewall blocks traffic.

Switches and cables

We check whether switches work, ports are active, cables are faulty, links are incorrectly connected or there are physical network interruptions.

WiFi access points

We check coverage, signal, channels, load, guest networks, VLAN settings and whether devices connect correctly.

DNS, DHCP and IP addresses

We check whether computers receive correct IP addresses, gateway, DNS servers and can communicate with the rest of the network.

VPN and remote access

We check VPN accounts, rules, certificates, server access and whether remote users can work securely.

Computers and user devices

If only one user is affected, we check the network card, WiFi adapter, Windows settings, drivers, antivirus, proxy and user profile.

Remote diagnostics or on-site visit

If at least one computer has internet or remote access is possible, part of the check can be done remotely. This is the fastest way to check routers, firewalls, VPN, DNS, DHCP and basic settings.

An on-site visit is needed when the issue is physical equipment, cables, switches, access points, modem, power supply or when the network is not available for remote diagnostics.

Remote support most often solves:

DNS and DHCP settings
VPN issues
router and firewall settings
single-computer issues
Outlook and cloud service issues
some WiFi and network settings

An on-site visit is needed for:

modem, router, firewall or switch faults
physical cables and ports
WiFi access points
network equipment power issues
poor signal coverage
equipment replacement or installation
situations where the whole network is unavailable

If the internet issue keeps coming back

If the office internet keeps dropping, WiFi is unstable or the issue returns several times a month, it is not enough to just get the connection running again. The whole network infrastructure should be checked: equipment quality, coverage, cables, configuration, load and a backup internet option if the business depends on connectivity.

In these situations we recommend detailed network diagnostics and, when needed, managed IT maintenance. This way problems are not solved from scratch every time; the cause is known and the required change is clear.

When emergency IT support is needed

If internet is not working across the whole company and employees cannot use email, business applications, cloud services or access files, the issue should be treated as urgent. In that case we first perform a quick assessment and try remote diagnostics, and when needed we organise an on-site visit. See also Emergency IT Support.

Internet not working in your office?

Send a short description: whether internet is unavailable for everyone or one user, whether WiFi works, whether wired network works, when the issue started and whether equipment changed recently.

Request network diagnostics

+381 60 6700-112

office@nbgteam.rs

Frequently asked questions

What should we do if the office internet is not working?

First check whether the issue affects the whole company or only one computer, whether WiFi works, whether the wired network works and whether the modem, router and switch are powered on. If several users are affected, network diagnostics is the best next step.

Is the issue with the internet provider or our network?

The provider is not always the cause. The issue may be the modem, router, firewall, switch, WiFi access point, cable, DNS, DHCP, VPN or computer configuration. The first step is to identify where the interruption happens.

Can you remotely check why the internet is not working?

If at least one computer or device can access the network, part of the diagnostics can be done remotely. If the whole network is unavailable or the issue is physical equipment, an on-site visit is needed.

What if WiFi is not working but wired internet works?

The likely cause is the WiFi access point, signal coverage, settings, channel congestion or the user network. In that case we check the WiFi equipment and how devices are connected.

What if the internet connection keeps dropping?

If interruptions repeat, the network equipment, cables, firewall, switches, WiFi coverage, network load and provider connection stability should be checked.

Do you come on-site in Belgrade?

Yes. When the issue cannot be resolved remotely or is related to physical network equipment, cables, switches, firewall, router or WiFi devices, we organise an on-site visit in Belgrade.

Can you fix the network so the issue does not repeat?

Yes. If internet or WiFi issues repeat, we can check the whole network infrastructure, suggest better equipment organisation, replace weak devices, adjust WiFi, add backup internet or recommend managed maintenance.

Do you work only with businesses?

Yes. NBG TEAM works with companies and legal entities that need IT support, network infrastructure and business system maintenance.

Internet Not Working in Your Office?