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 03/09/2026 14:35

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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.

Beware of "support numbers" or "recovery" accounts that might be posted below. Make sure to report and downvote those comments. Avoid posting your personal information.

O2 Issues Reports Near Welwyn, England

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

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

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

  • 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

  • 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

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

    @O2 How did this shit happen

  • 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!

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

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

  • 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

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

    @O2 Is incoming calls down as I have had so many missed calls from people who have had to call on landline not good for business

  • hiaw61 Robert Frame (@hiaw61) reported from Hatfield, England

    @O2 absolutely APPALLING CUSTOMER SERVICE from O2 and would never recommend them to anyone. Unable to contact them and their phones just cut off and and unable to track anything on their website as again does not work. I will continue to post until they actually respond or call

  • hiaw61 Robert Frame (@hiaw61) reported from Hatfield, England

    @O2 Still no response from O2 Customer Services. Please do not buy any products from this company

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

    @EmmaShubrook @O2 Agreed. I have no signal 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

  • hiaw61 Robert Frame (@hiaw61) reported from Hatfield, England

    @o2 can’t you tell me why your customer service is so appalling called twice after I was given this number 034480490202 answer the questions and then Bye thanks for calling

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

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

  • 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

  • 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!

  • 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.

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • privatehireguy PHG (@privatehireguy) reported

    @virginmedia I’m a long-standing BB/TV/Phone customer and I took out an @O2 SIM Only contract a few weeks ago, but I’m yet to receive my broadband speed increase. Can you assist please?

  • Hardwired_2_s_d N.C (@Hardwired_2_s_d) reported

    @O2 3 customer support agent , 1 complaint department agent and you, everyone keep telling me same thing but no progress. It’s been 3 weeks and I can’t access my bank apps and amazon. thanks O2.

  • AFC_GLEN AFC GLEN (@AFC_GLEN) reported

    Any help please. Transferring from Vodaphone to @O2 I’ve the Puck Codes for both my boys phones. Will they lose everything they’ve had on the phone when i put new chip in & how does it activate ?

  • mperezsainero Marta Perez (@mperezsainero) reported

    @O2 your signal is normally very bad on SE13 Lewisham but since last night is almost inexistent. What is going on?

  • FatVeganLib Fat Vegan Liberator (@FatVeganLib) reported

    Yo @Telefonica_En & @O2 why do you charge £30 pm for unlimited calls texts & data; when @LycamobileUK who lease your network can offer it for £13.90, it's the same network and service; so why do you charge through the nose for it? Or is it simply greed?

  • las42479 Lorna Smith (@las42479) reported

    @O2 I’ve just upgraded to an iPhone 13 which I’ve set up with no problems. The box included a new SIM card, do I have to use the new one or carry on with my old SIM card? Also how do I enable 5G?

  • MrNJ39 Nathan Jarvis (@MrNJ39) reported

    @O2 what number do I call to cancel my cotract within the 14 day cooling off period? Can I do it via email?

  • iamstu9 Stu (@iamstu9) reported

    @SW_Help no WiFi 7.30 from farnborough - London, can’t work on train #Frustration .. the real problem here is @VodafoneUK @O2 and their awful network

  • brynmeisterx Bryn (@brynmeisterx) reported

    @O2 I have upgraded my sim only contract today and I am unable to activate my Extra. Can you help?

  • ashybashy15 Aislinn Hall (@ashybashy15) reported

    @O2 don't you love when someone takes out an contract in your name and from your bank card and you can't even get help for the fraud that is happening absolute shambles