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 02/24/2026 02:50

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Most Reported Problems

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

  1. Phone (51%)

    Phone (51%)

  2. Internet (30%)

    Internet (30%)

  3. Total Blackout (12%)

    Total Blackout (12%)

  4. E-mail (4%)

    E-mail (4%)

  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: Luton, Stevenage, St Albans and Buntingford.

Loading map, please wait...
City Problem Type Report Time
United KingdomLuton Phone
United KingdomStevenage Phone
United KingdomSt Albans Internet
United KingdomLuton Phone
United KingdomBuntingford Total Blackout
United KingdomBuntingford Internet

Community Discussion

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O2 Issues Reports Near Welwyn, England

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

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

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

  • 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

  • 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

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

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

  • 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!

  • AEgbuonu ARIBBUZZ (@AEgbuonu) reported from Welwyn Garden City, England

    @O2 sort your cancellation team and phone problem out. #poorcustomerservice

  • 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

  • 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

  • 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

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

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

  • 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.

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

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

  • 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.

  • 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,

  • 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

  • sarahcoysgabb sarah gabb (@sarahcoysgabb) reported from Broxbourne District, England

    @O2 trying to upgrade on app and main website but when I choose it crashes can anyone help

  • 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!

  • 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!

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

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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • justincook70 justin time (@justincook70) reported

    @O2 is your online chat down I’ve been trying to contact someone for 2 days now and carn’t get any joy ??? I’ve tried at different times of the day please help

  • annwyrdrnk CM (@annwyrdrnk) reported

    Nice work by @O2 changing my tariff today. Very quick. Been screwing me over for years tbf. I only realised when EE offered me kajillion GBs for a third of the gold bullion I shipped to O2 each month (and had been doing for 15 years). Feel like a cool customer on me new deal tho.

  • niksmit Nik Smit (@niksmit) reported

    @O2 nobody answers your support number +44 7860 980202 ...

  • KJBSharp Kieran (@KJBSharp) reported

    @O2 Im looking to bring over my number from another network. Youve sent me my new sim but im not receiving the text with the code so i can unlock it

  • Dhanraj68333005 Dhanraj (@Dhanraj68333005) reported

    @o2 is there any thing you can do to address my issue or is my only option is to complaint to ombudsman? Please let mr know (3 of 3)

  • TH_ShaunaH Shauna Hanna (@TH_ShaunaH) reported

    Over 24 hours since I arrived in the US and my @O2 travel bolt-on is still not working. Very unimpressed! #NoService

  • MrSmithLocksLtd Mr Smith Locks Ltd - Locksmiths (@MrSmithLocksLtd) reported from Swillington, England

    Dear @O2, Today, we had a powercut, which, in turn, highlighted a big issue. The issue? A VERY, poor signal, barely "H+", with a short-lived, spattering of 4G. I do most of my social media interactions via WiFi, so I rarely notice the inadequate signal. CONT.....

  • KingNickking Nick King (@KingNickking) reported

    @O2 so after upgrading my phone on Tuesday I still can’t make or receive calls hours wasted in the shop and on helpline. What an utterly abysmal service, I’m self employed and need my phone sorted.

  • Andy_Watt Andy Watt (@Andy_Watt) reported

    @O2 Thanks for the reply. Seems you don't support that like many other carriers do which would save customers a lot of time and effort. Maybe one you can put to your team for a suggested improvement or make the esim swap available through your app which some providers do.

  • lucindajscott Lucinda Scott (@lucindajscott) reported

    @O2 It’s nothing to do with network problems.