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Internet down: whose job is it to fix it, us, the ISP or our IT company?

Published 29 September 2026 · 6 min read

Internet down, whose responsibility is it to fix, ISP or IT company

The internet is down, the business is losing money by the minute, and the phone calls begin. The broadband company says the line is fine, so it must be your network. Your IT company says the network is fine, so it must be the line. The landlord shrugs. Meanwhile nothing is fixed. If this sounds familiar, you have met the blame game. Here is who is actually responsible for what, and how to cut straight through it.

Why the finger-pointing happens

A business internet setup is a chain of parts, and different people usually own different links. The incoming line is the broadband provider’s. The network and Wi-Fi inside the building might be your IT company’s, or yours. The cabling could be the landlord’s. Because each supplier only looks after their own link, each can quite honestly say “it is not us,” and you are left holding a problem nobody owns.

Who is responsible for what

The partWho usually owns it
The incoming line or circuitYour connectivity provider / ISP
The router or firewallProvider or IT, depending on who supplied it
Internal network and switchesIT, or whoever installed it
Wi-Fi and access pointsIT or your telecoms/network provider
Cabling in the buildingYou or the landlord
Devices (laptops, phones)You

How to find the fault fast

You can narrow it down in minutes before anyone starts pointing fingers. Plug a laptop straight into the router with a cable: if that works, the line is fine and the problem is your internal network or Wi-Fi; if it does not, the line or the router is the suspect. Glance at the router lights, and note what you see. Those two checks usually tell you which supplier to call, and they are exactly what our guides on Wi-Fi versus internet and the business owner’s guide to router lights walk through. Arrive at the call with those details, plus our fault checklist, and the blame game has nowhere to hide.

The real problem: fragmented ownership

Diagnosing it yourself helps, but it should not be your job every time the internet drops. The underlying issue is fragmentation: when your broadband, phones, Wi-Fi and IT are spread across three or four different suppliers, no single one is responsible for the outcome. Each owns a piece, so none owns the problem. That is the real reason a simple outage turns into an afternoon of phone calls.

When everyone owns a piece, no one owns the problem. The fastest fix is not a better diagnosis every time, it is removing the gaps between suppliers so one partner is accountable for the whole thing working.

The fix: one accountable partner

When the line, the network, the Wi-Fi and the phones are looked after by one provider, there is nobody to pass the buck to. You make one call, and the same team that supplied the connection can see it, test it, and own the fix end to end. It is the difference between “not our problem” and “leave it with us.” This is exactly why treating telecoms as a bolt-on to general IT causes so much grief, as we explain in why telecoms is not an add-on.

Frequently asked questions

Whose responsibility is business internet when it goes down?

It depends which part has failed. The incoming line is the ISP’s, the internal network and Wi-Fi are usually IT’s or yours, and the cabling may be the landlord’s. The split is exactly why faults get passed around, and why one accountable provider helps.

Is my IT company responsible for the broadband line?

Usually not the line itself, that is the connectivity provider’s. IT typically looks after the internal network, Wi-Fi and devices. If the two are different companies, a line fault and a network fault can end up being blamed on each other.

How do I know if it is the line or my network?

Plug a laptop into the router with a cable. If it works, the line is fine and the problem is your internal network or Wi-Fi. If it does not, the line or router is the likely cause. Checking the router lights narrows it further.

What should I do the moment the internet goes down?

Do the cable test, note the router lights, and check whether it affects everyone or one device. Those details tell you who to call and stop you being bounced between suppliers. Our fault checklist lists exactly what to gather.

Should one company handle both broadband and IT?

For connectivity, having one partner own the line, network, Wi-Fi and phones removes the blame game, because there is a single point of accountability when something breaks. It is the simplest way to turn a multi-call ordeal into one “leave it with us.”

How Synergy Max helps

We look after connectivity end to end, the line, the network and Wi-Fi, and the phones, so when something goes wrong there is one number to call and no one to pass the buck to. We can see your line from our side, test the network, and own the fix from start to finish. That single point of accountability, backed by our support promise, is the end of the blame game.

Tired of suppliers pointing at each other?

Let one partner own your line, network, Wi-Fi and phones, so when the internet goes down there is one number to call and one team that fixes it, no blame game.