Troubleshooting · Ireland

Not getting advertised broadband speed

As of August 2026, the number on the billboard is a maximum, not a mean. Irish contracts should also state a typical (normally available) speed and a minimum. “Up to 1 Gb” on Wi-Fi through a stone wall is not a ComReg case. A wired test that never reaches the floor in your contract is. Start there — then decide if you have a fault, the wrong product, or a dead bedroom.

The short version: test on Ethernet, compare to the typical and minimum in your contract, and check whether you even bought full fibre. Part Fibre (FTTC) around 100 Mb is often the line doing its job. Peak-time cable, 5G and Starlink miss “up to” by design. Wi-Fi misses it by physics — slow broadband and Wi-Fi dead zones.

Advertised vs typical vs guaranteed

For fixed broadband, EU open-internet rules (the ones Irish retailers have to follow) expect the contract and pre-contract information to spell out, for download and upload:

  • Maximum speed — usually the advertised figure, the ceiling on a working line.
  • Normally available (typical) speed — what you should get most of the time, not once at 3am.
  • Minimum speed — the floor. Persistently under this is the complaint that has teeth.

People say “guaranteed” for that minimum. Read the actual wording. Some plans still hide the trio in a one-pager or a “speeds explained” PDF rather than the homepage tile. If it is not in what you were given before you signed, ask them to email the three numbers for your product at this Eircode.

Mobile / 5G home and satellite are different: estimated maxima, cell load, weather. There is no glass profile that an engineer can “turn up to 500”. Judge those against honesty (“is this a usable evening service?”) more than against a fibre-style floor.

FigureWhat it isWhat it is not
Advertised / maximum (“up to”)The ceiling they are allowed to shout. Should be realistically achievable on that product for a significant share of customers.A promise you will see it on a phone in the attic at 9pm.
Typically available / normally availableThe working-day expectation on a healthy line. This is the number to compare a wired log against first.A lab result from matched.ie — we do not invent Mbps.
MinimumThe contractual floor. A sustained miss, after they have had a chance to repair, is where remedies (including leaving) start to get real.A licence to exit in week two because Wi-Fi is patchy.

“Up to” is not a promise

Irish ads still lead with the big number. “Up to 1 Gb” means the product’s maximum, not your mean. Protocol overhead, the laptop’s network card, the time of day and the access technology all sit underneath it. A fair retailer will still show typical and minimum in the small print you are supposed to read before you click.

ComReg’s interest is that the advertised speed is not a fiction and that the contract speeds are stated. It is not a warranty that every device in a 1970s semi will pull a gigabit over the air. If the wired test is in the typical band, the ad did its job and the house needs coverage, not a tribunal.

Fibre vs Part Fibre — the labelling trap

On ComReg’s Broadband Checker:

  • Fibre — FTTP / FTTH. Glass to the premises. 500 Mb and 1 Gb are real products.
  • Part Fibre — FTTC (EVDSL/CVDSL). Copper from the cabinet. Typically around 100 Mb down.
  • Cable — Virgin HFC. Strong advertised download, much weaker upload, shared segment.
  • Copper — old ADSL. Not the fibre ad.

If the quote is “Ultrafast 500” and the checker says Part Fibre, you were not failed by Open Eir’s evening performance. You were sold the wrong mental picture. Walk away or wait for the upgrade. How to read the maps: check broadband by Eircode. Physics: FTTH vs FTTC vs cable.

What each technology typically delivers vs the headline

Planning ranges as of August 2026, not a speed-test table. Your Eircode decides which row you are even on.

TechnologyTypical headline (ads / plans)What a wired test often looks likeWhy it misses the billboard
FTTH (Open Eir / SIRO / NBI)500 Mb or 1 Gb common; some 2–5 GbClose to advertised download on a healthy ONT; upload 100 Mb on some Open Eir 500s, often symmetrical on SIRO/NBIWi-Fi, a 100 Mb NIC, wrong plan, or a genuine line fault — not “fibre is a lie”
FTTC (Part Fibre)Often “up to 100 Mb”; still marketed as fibre~40–100 Mb down depending on copper length and pair quality; thin uploadThe last mile is copper. A new retailer on the same cabinet will not add 400 Mb
Virgin HFC (cable)500 Mb / 1 Gb / 2 Gb down; 50 Mb up on 500 and 1 Gb; 100 Mb up on 2 GbStrong off-peak download; evening sag on a busy node; upload stuck at the plan capShared coax. Peak contention. Upload was never a gigabit
5G homeUp to 300–500 MbHighly variable: maybe hundreds at 11am, tens after tea, or nothing in a back kitchenCell load, spectrum, walls. There is no FTTP profile to repair
StarlinkResidential 100 / 200 / 400 Mb; upload advertised ~15–30 MbBusy evenings commonly 100–200 Mb down; latency tens of msSatellite cell congestion, obstructions, weather — expected, not a unique Irish outage

If the wired number matches the row, you have the product you bought. Shop a different technology if that is not enough — best broadband in Ireland — not a different logo on the same copper.

How to evidence a complaint

Retailers close tickets that say “it’s grand on the app, must be you.” Give them a log they cannot shrug off.

  1. Product first. Screenshot the order: technology, advertised down/up, typical and minimum if shown. Checker status (Fibre vs Part Fibre) beside it.
  2. Wired only. Laptop Ethernet into the router. VPN off. Other heavy devices idle. Gigabit port if you are on 500 Mb+.
  3. Times of day. At least morning, afternoon and after 8pm, over several days — not one Sunday.
  4. Same extras every time. Date, time, wired vs Wi-Fi (should be wired), server, download, upload, ping. Provider tool plus an independent test if you can.
  5. Rule out the obvious. Reboot once, try a second cable, try a second device. Note that you did.
  6. Then the ticket. Ask them to confirm line profile, optical levels (FTTH) or SNR/attenuation (FTTC), and which contract speed they say you should see at those hours.

Keep the emails. If they “fix” it by posting a new router, retest wired before you agree the fault is closed. A new hub can help Wi-Fi and do nothing for a congested cable node.

Do not mix tests. A wired 470 Mb at 10:12 and a phone 55 Mb at 21:40 in the box room is two stories. The first is the line; the second is radio. Only the first belongs in an advertised-speed complaint. Split them the way we do on slow broadband.

When you can leave

SituationCan you walk without an ETF?
Within 14 days of a distance contract (site, app, phone)Yes — statutory cooling-off. They may charge for service already used and want the kit back. This undoes the new contract; it does not erase an ETF already owed to the old provider.
Wired tests persist below the contract minimum / normally available speed after a reasonable repair windowOften a remedy is due — repair, price reduction, or termination — under consumer and open-internet rules. Fact-specific. Keep the log. Ask in writing. ComReg if they stall.
You simply want a different brand and the line meets typicalNo free pass. Switch under ComReg rules but pay the early termination fee if you are inside the term, unless a Contract Change Notification is open.
Wi-Fi is poor; Ethernet matches typicalNo. That is mesh or placement, not a mis-sold speed. Wi-Fi dead zones.
FTTC doing ~80–100 Mb on a Part Fibre orderUsually not a “failed 500 Mb fibre” claim. Leave when FTTH is Passed, or at end of term / CCN, unless they actually sold you an FTTH SKU on a copper checker result — then the paperwork is the issue.
End of Contract Notice, or a Contract Change Notification you do not acceptYes — those are the designed windows. How to switch and April price rises.

This is general information for Ireland as of August 2026, not legal advice and not a substitute for the contract you clicked. If a live quote disagrees with a figure on this site, trust the checkout — we do not invent lab Mbps, and plan speeds move.

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DM
About the author
Broadband & Fixed-Line Specialist

Darragh Murphy has tested and compared Irish broadband services since 2018. He runs matched.ie’s real-world speed and reliability tests across fibre, cable and rural fixed-wireless connections.

8+ years analysing Irish broadband performanceTested 50+ providers including Eir, Virgin Media, Sky and SIROCertified in Cisco Networking and Openreach fibre standardsBased in Galway, regularly covers rural rollout issues

Frequently asked questions

What is the difference between advertised, typical and guaranteed broadband speed in Ireland?+

Under the EU open-internet rules that Irish providers must follow, a fixed-broadband contract should set out a maximum (usually the advertised figure), a normally available (typical) speed, and a minimum speed, for download and upload. The ad’s “up to” number is the ceiling. Typical is what you should see most of the time on a working line. Minimum is the floor they have to take seriously. 5G and satellite are estimated and more variable — treat their “up to” as marketing, not a wired guarantee.

Is “up to 1 Gb” a promise I will get 1,000 Mb?+

No. “Up to” is the maximum, not a mean. Wi-Fi, an old laptop, a busy Virgin node, a 5G cell and a copper tail will all sit under it. ComReg still expects advertised speeds to be realistically achievable for a significant share of customers on that product — not a fantasy. Evidence a complaint with wired tests against the typical and minimum in your contract, not against a billboard. Wider diagnosis: slow broadband.

Why does ComReg say Part Fibre when the ad said fibre?+

Because Fibre on the Broadband Checker is FTTP (glass to the premises). Part Fibre is FTTC — fibre to the cabinet, copper to the door, typically around 100 Mb. That is still sold as broadband and sometimes still called fibre in ads. You cannot squeeze a 500 Mb FTTH result out of that pair. Labels: FTTH vs FTTC vs cable. Check the Eircode: check broadband by Eircode.

How do I prove I am not getting the advertised speed?+

Wired Ethernet, VPN off, other devices quiet. Several tests across morning, afternoon and evening, over a few days. Screenshots with timestamps. The contract’s typical and minimum figures next to those numbers. Then a fault ticket. A single phone test on Wi-Fi at 9pm is what they dismiss — fairly, if the line itself is fine.

When can I leave if the speed is not what was sold?+

Inside 14 days of a distance sale you can cool off. After that: if the service does not meet the contract’s minimum / normally available speeds and they cannot fix it in a reasonable time, you may have a right to a remedy — including ending the contract — under consumer and open-internet rules. That is fact-specific; keep the log. A Contract Change Notification is a separate penalty-free window. An ETF still applies if you simply prefer a different logo. Process: how to switch.

Will switching Sky to Vodafone on Open Eir give me the advertised 500 Mb?+

Not if the bottleneck is FTTC copper, Wi-Fi, or a laptop NIC. Same wholesale socket, same physics. A new retailer can give you a newer router and a different upload profile on FTTH (Sky 500 is typically 500/100; some SIRO/NBI plans are symmetrical). It cannot turn Part Fibre into full fibre. Change network when the checker says you can; change shop when the contract is the problem.

Does Virgin Media’s 1 Gb plan really deliver 1 Gb?+

Advertised download on cable can look like FTTH on a quiet afternoon. Evening contention on a busy node is the known trade-off, and upload on 500 Mb / 1 Gb plans is 50 Mb in the August 2026 plans we track — that is the headline, not a fault. Compare typical/minimum in the Virgin contract, test wired at peak, then decide if SIRO or Open Eir FTTH is the better product where it passes. Virgin Media review.

Is 5G “up to 500 Mb” the same as 500 Mb fibre?+

No. It is a radio ceiling. Evening cell load and walls decide what you get. There is no glass profile to “repair” up to 500. Use 5G when wired checkers are empty; switch when they are not. Three and Imagine are honest as a mast product, not as FTTH.

Should I speed-test on the provider’s app or on speedtest.net?+

Both, if you can, on Ethernet. Their tool is what they cannot easily call “the wrong server”. An independent test is what you keep. Agreement between the two is useful. A huge gap is itself a clue (VPN, Wi-Fi, or a busy test server). Do not mix a wired ISP test at noon with a phone test at midnight and call it a trend.

What if only Wi-Fi is slow but the ad promised 1 Gb?+

Then you are probably getting the product and wasting it in the air. That is not an advertised-speed complaint. Fix coverage — Wi-Fi dead zones — before you threaten to leave. ComReg is not going to make stone walls thinner.

Do I need a gigabit plan if I never see 500 Mb on Wi-Fi?+

Need is a household question — what speed do I need? — and 500 Mb on full fibre is the usual family default. Buying 1 Gb because the landing tests at 80 Mb wireless is paying for megabits the radio cannot carry. Upgrade the plan when the wired test already fills 500 and the extra gig is cheap.

Where do I complain after the ISP stalls?+

Use their published complaints process first (they must have one). Keep ticket numbers and the speed log. ComReg’s consumer line and online complaints path are the backup for unresolved disputes — including switching and, in some cases, speed. This page is general information for Ireland, not a substitute for the letter in your contract. Prices and plan speeds here are dated August 2026; trust the live checkout if they disagree.

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