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 12/17/2025 20:30

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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 (31%)

    Internet (31%)

  3. Total Blackout (16%)

    Total Blackout (16%)

  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, Hertford, Waltham Cross and Hemel Hempstead.

Loading map, please wait...
City Problem Type Report Time
United KingdomSt Albans Phone
United KingdomHertford Phone
United KingdomWaltham Cross Internet
United KingdomHemel Hempstead Internet
United KingdomHemel Hempstead Phone
United KingdomStevenage Phone

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:

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

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

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

    @O2 How did this shit happen

  • 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

  • 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

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

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

  • 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

  • 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

  • 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

  • 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

  • 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

  • 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!

  • 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

  • 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.

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

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

  • 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

  • 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

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

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

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

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

  • 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!

  • 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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • Louhawke1994 Lou Hawke ✌ (@Louhawke1994) reported

    @O2 2 days without signal. No texts, calls, Internet. Nothing. Hope these 2 days are taken from my bill. I refuse to pay for a service I'm not getting.

  • toxic77rose ⭐️ Miss T ⭐️ (@toxic77rose) reported

    @O2 I'm a tesco mobile customer but my work tablets that are o2 were dropping out at exactly the same time

  • robinrimbaud Robin Rimbaud - Scanner (@robinrimbaud) reported

    @cassieldotcom @O2 No, Nick, that would never happen. I'm sure that was painted on the side of a bus somewhere!

  • Pete8612 Pete86 (@Pete8612) reported

    @s0phie_mae @O2 Fu….you @TheO2 … prices are going up nearly 100% for each Service

  • KarimalKreama KayKariKamzRiriRima (@KarimalKreama) reported

    @O2 how can your mast be down since Friday and ETA to resolve is 1st July? What type of rubbish is this?!

  • MergersE Mergers & Executions. (@MergersE) reported

    @O2 The tariff and the amount stays the same? That’s not clear on the email. What services are you referring to? The link only goes to the full terms and conditions so while your email says “see how you’re affected here” it doesn’t help.

  • ahmadmadali Your Dad (@ahmadmadali) reported

    @O2 can't wait to cancel my contract now that roaming charges are back :)

  • Steve_Red_Beard Red Steve (@Steve_Red_Beard) reported

    @O2 you said current contracts wouldn't change, how come I got an email stating tariffs are going up again in August. They already went up once this year, so your raising twice in one year ? But you still offer sub par service, you lot have a cheek. Thank God I'm getting rid

  • kayleighjt92 kayleigh (@kayleighjt92) reported

    @O2 hi my dad got your offer for 6months free disney + and it exepired this month and hes been charged on his bill for it to continue, can you please tell me how we can cancel the disney+? Thankyou

  • TheSteveShenton Stephen Shenton (@TheSteveShenton) reported

    @O2 The app works but I don't always have my phone to hand. I would still like to be able to access the website. It doesn't work with any computer or browser.