O2

O2 Outage Report in Welwyn, Hertfordshire, England

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O2 is the commercial brand of Telefónica UK Limited offering mobile phone and mobile internet service, including voicemail and SMS. With over 25 million customers, O2 runs 2G, 3G and 4G networks across the UK. O2 previously offered home broadband service.

Problems in the last 24 hours in Welwyn, England

The chart below shows the number of O2 reports we have received in the last 24 hours from users in Welwyn and surrounding areas. An outage is declared when the number of reports exceeds the baseline, represented by the red line.

O2 Outage Chart in Welwyn, Hertfordshire, England 03/10/2026 21:15

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Most Reported Problems

The following are the most recent problems reported by O2 users through our website.

  1. Phone (47%)

    Phone (47%)

  2. Internet (32%)

    Internet (32%)

  3. Total Blackout (15%)

    Total Blackout (15%)

  4. E-mail (3%)

    E-mail (3%)

  5. Wi-fi (3%)

    Wi-fi (3%)

  6. TV (%)

    TV (%)

Live Outage Map Near Welwyn, Hertfordshire, England

The most recent O2 outage reports came from the following cities: Hemel Hempstead, Hatfield, St Albans, Luton, Stevenage and Buntingford.

Loading map, please wait...
City Problem Type Report Time
United KingdomHemel Hempstead Internet
United KingdomHatfield Wi-fi
United KingdomSt Albans Wi-fi
United KingdomLuton Phone
United KingdomStevenage Phone
United KingdomSt Albans Internet

Community Discussion

Tips? Frustrations? Share them here. Useful comments include a description of the problem, city and postal code.

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O2 Issues Reports Near Welwyn, England

Latest outage, problems and issue reports in Welwyn and nearby locations:

  • isthatdan Dan (@isthatdan) reported from Stevenage District, England

    @O2 are gonna have to either offer me an amazing deal or sort out this horrendous signal issue. How can I not load a twitter video when I have a full 4 bars of 4G signal

  • banafshbanafsh banafsheh (@banafshbanafsh) reported from Waltham Abbey, England

    @TazPDN @O2 So sorry to hear that ,#o2 is really bad, I'm with Vodaphone and they are much much better . Hope all get sorted for you x

  • bks67 bridget sparks (@bks67) reported from Hertfordshire, England

    @O2 I do have the app, I think I will phone the customer service team and ask them,

  • PaulWRamsay #HellomynameisPaul (@PaulWRamsay) reported from London Colney, England

    Really bad service from @O2, having calls from a shop to pressure into upgrades, no really clarity when calling 202 to ask what’s going on-I think I need a new network!

  • AndrewTRIrwin Andrew Irwin (@AndrewTRIrwin) reported from London Colney, England

    @EmmaShubrook @O2 Agreed. I have no signal at all

  • Kami2k10 Kamiioo (@Kami2k10) reported from Luton, England

    @BBCNews @O2 worst coverage ever no solutions. The network towers always down but yet I'm still paying 55£ p.m i have no choice but to pay!! #ripoffbritain #conmen

  • WickhamofWare Jonathan Flood (@WickhamofWare) reported from Stevenage District, England

    @O2 @tescomobile No mobile signal in Great Ashby, Stevenage all day!!

  • AFCAMDEN AFCAMDEN (@AFCAMDEN) reported from London Colney, England

    @SkyNewsBreak Would cancel my contract with @O2 immediately if they did.

  • jodyrandall Jody Randall Esq. (@jodyrandall) reported from Broxbourne District, England

    @O2 why is your 4G so bloody awful at Liverpool Street Station

  • Steve_Edwards77 Steve Edwards (@Steve_Edwards77) reported from Hertfordshire, England

    @westspice @O2 Awful service for me today!

  • jmcomms Jonathan Morris 📱📸 (@jmcomms) reported from London Colney, England

    @VModifiedMind @benwood @EE @VodafoneUK @ThreeUK @O2 Albeit using half rate codec for voice. Sounded pretty awful.

  • dramattyhealy 🌜cobie🌛 (@dramattyhealy) reported from London Colney, England

    @O2 Hi, it’s been 2 weeks since i started receiving non stop calls from your call centres to get me get a plan with you, the caller said that i entered some kind of contest or signed up for this but i never did since i am happy with my current provider. This is very inconvenient

  • RaviDheer Ravi Dheer (@RaviDheer) reported from London Colney, England

    @O2 I'm sick to death of your network. I'm trying to pay you and I can't. Now I'll wait for some fool to contact me. I give up with this pathetic network.

  • stourdave Dave (@stourdave) reported from London Colney, England

    @O2 How did this shit happen

  • mrjc90 Josh (@mrjc90) reported from Hitchin, England

    @O2 not sure when your call centre in Cape Town opened but it’s been extremely painful trying to solve a simple issue..I might of been unlucky but think staff could do with some further training

  • Craigcanfield Craig Canfield (@Craigcanfield) reported from Welwyn Garden City, England

    @O2 contract finished.. put on a rolling month deal.. nothing will change they said... 2 days now with no phone signal.. "sim provisioned"! Customer svc say it'll work soon. Gggrrr

  • ItsMeEllisxD Ellis Brown (@ItsMeEllisxD) reported from London Colney, England

    @O2 Well it’s every time I leave Leicester. Or go to a new city.. even when I have 4 bars it’s either really slow or won’t load at all!

  • DimitthriV Dimitthri Vithanage (@DimitthriV) reported from London Colney, England

    @O2 what is going on! 😭😭 Even when I have signal it's so slow!

  • AddictiveColors Addictive Colors (@AddictiveColors) reported from London Colney, England

    @O2 I understand that carriages speed and materials do not help, but repeaters in tunnels sure would to avoid disruptions especially as they can particularly nasty to a laptop when the phone or the train is the hotspot as that side of the connection never goes down just the gateway’s

  • CraigFamilyBlog Hayley & Gavin (@CraigFamilyBlog) reported from St Albans, England

    Gav and I have had no mobile phone service for 3 days, but I have no service to call @virginmedia to let them know! It happens far too regularly. Just spent the morning searching for a new deal. @O2 looks like the best so far!

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • 19gee78 Gordon Oakley (@19gee78) reported

    @O2 been charged 41 quid for a phone I still don't have and can't cancel...what the hell is going on?...raging isn't even close 🤬🤬🤬

  • Yorksims John Woods (@Yorksims) reported

    @Laylaastley @giffgaff @O2 Hi Layla,I started a thread in the giffgaff community to report your problem with the sim and a member of staff replied and asked where you bought it from so they can check there aren't any more. 1/2

  • barbados10 chris rose (@barbados10) reported from Shoreham-by-Sea, England

    @O2 you inept and incompetent helpdesk and customer have consumed my whole weekend trying to get my watch ultra to work, it’s now offline again I just want to return it and forget it and buy a luxury normal watch I have no time for this ****.

  • DigitalMogul9 Digital Mogul (@DigitalMogul9) reported

    @Airtel_Zambia I see a huge gap in the market. And if a reputable western company like @vodaphoneuk or @O2 enter the zambian market they would destroy airtels market share based on customer service alone. airtel chooses 3rd world countries for a reason as it could never operate in the UK

  • RkSmalley MrsSmalley (@RkSmalley) reported

    @O2 just wondering when you might finally fix the mast at GU35 as it has been out of action for a few weeks again. Please can you also compensate for the non-service.

  • katie_rail Katie Rail (@katie_rail) reported

    @O2 hi, the greggs I went to couldn’t process my code today for a drink cos their internet is down, are you able to help as I now have an expired code which I haven’t used , thanks

  • thebooms2k12 booms (@thebooms2k12) reported

    @O2 hello I redeemed a free greggs coffee through your app but all greggs in my area internet is down, is there any chance of resetting my voucher?

  • cyco_tk DAVE | CYCO (@cyco_tk) reported

    @O2 Your service has been terrible this weekend “apparently” a mast is down in my area, yet you’ll still charge me the full price on my bill even though I’ve barely had any service, and I’ve not had a single 5G signal yet I pay for that too!

  • ThreeHoeOne Michael Austin (@ThreeHoeOne) reported

    @O2 You have poor service, I’d pipe down

  • Elycat Elaine McIntyre (@Elycat) reported

    @katie_rail @O2 Greggs payment systems are down across country by looks of it