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 01/01/2026 20:35

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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.

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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:

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

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

  • 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

  • emmatrainis Emma Trainis (@emmatrainis) reported from Shenley, England

    @O2 I ordered Disney + on 24.12.20 on Priority and have not received an email. Cannot get through on phone or live chat. Please can someone help me

  • 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

  • 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

  • JohnDWebb John Webb (@JohnDWebb) reported from London Colney, England

    @Stephen_Neal @O2 It’s the same with @NatWest_Help - their URL is ‘nwolb’ to login and check stuff. Surely these big companies should be leading by example?

  • 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

  • behu91 Ben (@behu91) reported from Hemel Hempstead, England

    @O2 are breaching trading standards. Have sent me a voucher code but are not allowing it to be redeemed against S21. Apparently due to being a new launch device, however there is nothing in the terms and conditions to suggest this should be an issue.

  • GoonerKJP Kaz 💋 (@GoonerKJP) reported from Stevenage District, England

    @O2 when I upgrade with a different network next week do I cancel my direct debit with you? Or do you do it ? @Barclays

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

    @O2 just to say that I have received a replacement phone which is a positive, however I hope they take this example of my frustration with their Customer Service in to consideration and keep their valued customer updated

  • 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

  • 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

  • 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 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!!

  • 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

  • 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 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

  • juliet_gough juliet gough (@juliet_gough) reported from Stevenage District, England

    @O2 I have an enquiry and can’t find an answer on the ‘My O2’ page. Please help. #CustomerService #o2

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • SPG8250978 S P G (@SPG8250978) reported

    @O2 can someone please update me on the mast issues YO11 3EA. Ongoing for nearly 2 months rarely able to get a signal or make calls. Received a text to say aerial would be fixed by 28 Sep - it hasn't been.

  • AnneOakes2 Anne Oakes (@AnneOakes2) reported

    @O2 Can I have some help. Appallling service on phone. Now cut off. Have been trying x 12 plus to upgrade phone.Thank you.

  • Saz_Bowen Sarah L Bowen (@Saz_Bowen) reported

    A warning to as many people as possible- never go with @O2 the most dreadful company I have ever dealt with.

  • peterd1974 Pete D 🔰 (@peterd1974) reported

    @littleredpizza1 @O2 @EE I live close to denzel gardens / devisdale and there is an acknowledged problem with EE I’m this general area when you speak to the phone shops. They have a postcode checkers

  • littleredpizza1 littleredpizzaco (@littleredpizza1) reported

    Dear @O2 why is you coverage so poor in the WA14 area? Constantly on 3G and with a decent phone, making me think hard about switching to @EE

  • Tilneys Jonny (@Tilneys) reported

    @O2 Good morning O2, we have arrived on holiday in Greece and after switching to O2 we don’t seems to have any Roaming data. Reset phone’s Network Settings, tried all 3 available networks and nothing.. Can we DM you for someone to check the right switches have Ben flicked please?

  • CollyerConstLtd Chris Collyer 🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿 (@CollyerConstLtd) reported

    @O2 it’s been nearly 48 hours since I switched within the O2 network & still my phones not working. How am I supposed to run a business with no way of contacting me if I’ve no Wi-Fi. Come on @O2 please get this sorted!!

  • s_w_photograph Stuart Williamson Photography (@s_w_photograph) reported

    @HeatCalculation @O2 @VodafoneUK Yep & I get 3G too but that never loads anything

  • LauraRob95 La Robinson (@LauraRob95) reported

    @O2 still no call back received. You have cut off a new mother of a vulnerable baby. 40 days and you still don't help. Ofcom here I come by the looks of things!

  • nmyers89 Nicholas (@nmyers89) reported

    @O2, yesterday my phone signal dropped completely and hasn’t come back since. Your service status says a mast is down nearby but everyone else in the house on O2 can connect fine? What gives. Struggling to connect all over Peterborough.