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 12/29/2025 09:20

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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 (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: Hemel Hempstead, Welwyn Garden City, St Albans, Hertford and Waltham Cross.

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

Community Discussion

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O2 Issues Reports Near Welwyn, England

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

  • Mattoco Matt O'Connor (@Mattoco) reported from St Albans, England

    This Christmas, @O2 is donating data to those who need it. For every tweet using #O2DataPledge this Giving Tuesday, they'll donate even more data to the National Databank. Tap below to tweet your support 👇

  • HilaryRWriter Hilary Robertson (@HilaryRWriter) reported from Hitchin, England

    @O2 Yes. I’m trying to cancel my mobile broadband and cannot do it on myO2. The ‘help’ keeps sending me round in circles

  • 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.

  • MarkstanYoutube Mark Stanford (@MarkstanYoutube) reported from Luton, England

    This Christmas, @O2 is donating data to those who need it. For every tweet using #O2DataPledge this Giving Tuesday, they'll donate even more data to the National Databank. Tap below to tweet your support 👇

  • Palouisea UnhappyHoopla (@Palouisea) reported from Shenley, England

    @VOXI_UK I have been on a staycation this week I am appalled at how poor your reception is in many parts of South East. Going back to @O2 as sim only!! Very frustrating 😕 missed many important phone calls. Pm me to discuss

  • johndpmc none of your business (@johndpmc) reported from Luton, England

    @O2 words fail me with how shockingly bad you are Your service is appalling, doing a sim swap on my behalf without telling me or having the new sim in my possession!So now no phone or contact to anyone unless in WiFi, wanna hope I have no accidents when I’m outside!! #theworst

  • a1_nos A1NOS (@a1_nos) reported from Hemel Hempstead, England

    Hey @O2 showing again why you really are market leaders in Customer Service. Big shout out to Lauren. 👌👌👌

  • CalvinLaurenson Calvin Laurenson (@CalvinLaurenson) reported from London Colney, England

    @O2 is your London 4g network having issues? I have multiple o2 devices that aren't connecting

  • 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?

  • ShanWilson_ Shan Wilson (@ShanWilson_) reported from Hemel Hempstead, England

    @O2 @mtsavor I cannot call 202 or any other number that is supposed to be “o2” as I don’t know who I’m talking to. I’ve been hung up on twice when I’m explaining what’s happened. I need to cancel the iPhone contract or change the address with an actual o2 staff member!

  • lovepbx Pauline (@lovepbx) reported from Waltham Abbey, England

    @O2 can someone from customer services contact me ... I need urgent help ... Thanks

  • philter66 Phil Turner (@philter66) reported from Hatfield, England

    @O2 simply dreadful customer experience tonight -felt really let down

  • JoshBates Josh (@JoshBates) reported from London Colney, England

    @O2 Hi, can you please help me add Spend Cap to my Pay Monthly account? Don’t seem to be able to do this from web site which is a little frustrating to say the least x

  • 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

  • JanGoodeve Cllr Jan Goodeve (@JanGoodeve) reported from Hertfordshire, England

    @traceylsteve @O2 @GreggsOfficial I had the same issue in the #Hertford store, the app just said to try again later so ended up paying.

  • ian_slade2 Ian Slade (@ian_slade2) reported from London Colney, England

    @O2 is the data network down? Zero mobile data connectivity all day. Plenty left on the plan

  • misswotless1 Miss Wotless (@misswotless1) reported from London Colney, England

    Remind me never to frequent the @O2 store on Oxford Street again - so rude and unhelpful, telling the customer before me not to come back

  • lovepbx Pauline (@lovepbx) reported from Waltham Abbey, England

    @O2 I have been trying to talk someone ... please can someone get back to me! I need urgent help.

  • lordshaun_ Lord Shaun O’Brien (@lordshaun_) reported from St Albans, England

    @O2 customer services truly are as much use as an ashtray on a motorbike.

  • 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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • MCDBEES Matthew Downey (@MCDBEES) reported

    @O2 Re o2 making up their inflation busting bill increases? For an average signal at best.

  • xxxsammiexxxxx sammie (@xxxsammiexxxxx) reported

    @O2 think your having issues with westlife presale can’t seem to get into the queue

  • P_C_Pickstock Phillip Pickstock (@P_C_Pickstock) reported

    @MartinSLewis @GMB @o2 25% increase for a SIM only contract is unacceptable, also I don't understand why new customer deals are much cheaper

  • EdisonMalick Edison Malick🇹🇹 (@EdisonMalick) reported

    @MartinSLewis Dear @O2 I will under any circumstances be paying above what my contract says. I will personally go to a store & it’ll be a problem just so you know in advance. Kind Regards

  • karenjs73 kjs73 (@karenjs73) reported

    @james_jevons @O2 OMG. Spent over 40 mins to be told I had to pay early termination charges. Refused that and was left on hold for an age, came back and told I would be disconnected straight away. Absolutely horrendous customer service. Only cemented the fact I will be leaving. What a disgrace!

  • LDNtoBrighton 🚴🏼‍♂️ (@LDNtoBrighton) reported

    Dear @virginmedia Your customer service person, name not taken, was an absolute credit to you. Wanted to moan about @O2 taking the urine, but steered me down a better route and helped me save money. Thank you, what ever she is paid it is not enough.

  • SumoUke Fantheflames (@SumoUke) reported

    @O2 @TicketmasterUK Trying to access presale tickets via O2 Priority for Poppy at O2 Institute Birmingham on 8 March 2026, but the Ticketmaster link just shows a generic page—no ticket options. Tried app + browser, signed in, still no luck. Is the link broken or not live yet?

  • edin_chauffeur Cheesed off chauffeur (@edin_chauffeur) reported

    Looks like it's adios to @O2 after 17 years of being a loyal customer. Cost of living is hitting us all and im not tolerating pure corporate greed. Looks like @tescomobile will be getting my business for a while.

  • P_finny13 finny (@P_finny13) reported

    @O2 your service and customer service is terrible!

  • Lynbodegas recrudescence! 😱(look it up!) (@Lynbodegas) reported

    @MartinSLewis @O2 has never kept their contract in Guildford. Walk outside my door, no network. They even gave me £50 after admitting there is no 5G in Guildford-they have constantly lied to their customers!!