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 01/04/2026 01:00

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Most Reported Problems

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

  1. Phone (46%)

    Phone (46%)

  2. Internet (32%)

    Internet (32%)

  3. Total Blackout (14%)

    Total Blackout (14%)

  4. E-mail (4%)

    E-mail (4%)

  5. Wi-fi (3%)

    Wi-fi (3%)

  6. TV (1%)

    TV (1%)

Live Outage Map Near Welwyn, Hertfordshire, England

The most recent O2 outage reports came from the following cities: St Albans, Hemel Hempstead, Welwyn Garden City, Hertford and Waltham Cross.

Loading map, please wait...
City Problem Type Report Time
United KingdomSt Albans Phone
United KingdomHemel Hempstead Phone
United KingdomWelwyn Garden City E-mail
United KingdomSt Albans Phone
United KingdomHertford Phone
United KingdomWaltham Cross Internet

Community Discussion

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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

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

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

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

    @westspice @O2 Awful service for me today!

  • 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

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

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

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

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

  • 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!

  • 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!

  • 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.

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

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

  • 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

  • Elissa524 Elissa Da Costa (@Elissa524) reported from St Albans, England

    @O2 Not sure what happened but all ok now thanks. Very good service to get me reconnected quickly

  • 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

  • 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

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

    @O2 How did this shit happen

  • 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

  • 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,

  • 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.

  • 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!

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • hazzafors Harry Forsyth (@hazzafors) reported

    Is there anything worse than having full bar 4G, but not actually being able to use the network? @O2

  • EntymeWatches EntymeWatchRepairs (@EntymeWatches) reported

    @O2 network is ridiculous. I switched from @EE for no reason. Having 2 sims In my phone proves #EE has coverage whereva I go. #o2 struggles even when I'm at home. Can't wait for my contract to end!

  • GunnComics Jay Gunn (@GunnComics) reported

    @O2 After being passed around from store to customer services and back again (even with lots of proof of ID/passport etc and looking at my bank details with O2) I discovered a flaw in your system and was stuck in a circle. I managed to cancel with a lot of faff and lost work hours.

  • RMcHattie Ross McHattie (@RMcHattie) reported

    @O2 @EE trying to move family members phone from o2 to EE and we say pac code not recognised, can’t get new one and work all hours your open. Help please

  • Tubbst4r_ 𝕄𝔸ℝ𝕂 𝕋𝕌𝔹𝔹𝕊𝕋𝟜ℝ (@Tubbst4r_) reported

    @tescomobile We're home now but that explains why we all had issues then so maybe @O2 can enlighten us as to whether we should of expected such sketchy service. Absolutely fine for calls and SMS but anything requiring mobile data connection was generally quite poor.

  • TwellsRob Rob (@TwellsRob) reported

    @Gotham68 @O2 All I get is no signal and £100 + bills.. which is pretty clever with no signal most of the time

  • AislinnDraws Aislinn Draws (They/Them) (@AislinnDraws) reported

    @O2 hello! I've had no access to mobile data for the past week, have tried refreshing & restarting everything, still got 9MB of data left when i log in to my o2 account, no outstanding bills or anything... why can I not access mobile data?! Please help!

  • donlesac Donlesac (@donlesac) reported

    @O2 usual dreadful service from O2

  • davepakey71 Dave Pakeman (@davepakey71) reported

    @Gotham68 @O2 All I get from @o2 is lack of signal #no4g

  • Ben_Chalky Ben White (@Ben_Chalky) reported from Yate, England

    Great service from @O2 sales team on here - thank you! But annoyingly come to pick up the phone and told that #iphone12 doesn’t come with a charging plug. “That’s ok,” I said, “we have loads at home.” Ah no, you’ll need the USB-C style sir.” Wtf. So need to buy a plug. What?!