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 03/03/2026 17:20

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Most Reported Problems

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

  1. Phone (50%)

    Phone (50%)

  2. Internet (30%)

    Internet (30%)

  3. Total Blackout (13%)

    Total Blackout (13%)

  4. E-mail (4%)

    E-mail (4%)

  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: Hatfield, St Albans, Luton, Stevenage and Buntingford.

Loading map, please wait...
City Problem Type Report Time
United KingdomHatfield Wi-fi
United KingdomSt Albans Wi-fi
United KingdomLuton Phone
United KingdomStevenage Phone
United KingdomSt Albans Internet
United KingdomLuton Phone

Community Discussion

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O2 Issues Reports Near Welwyn, England

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

  • 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

  • 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.

  • 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

  • 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

  • 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.

  • 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.

  • ashley_leggett Ashley Leggett (@ashley_leggett) reported from London Colney, England

    @O2 full 4G signal in Chelsea and can’t even load a PDF attachment or Instagram post. Absolute shambles. Same over in white city. Same in London Bridge. Got better service last week 2000M up a mountain in Austria

  • 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 👇

  • 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

  • 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

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

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

  • 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

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

  • 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

  • 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. 👌👌👌

  • 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

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

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

  • torgo Daniel Appelquist (@torgo) reported from London Colney, England

    Do you know what? Mobile operators get a lot of scorn, but I have spoken to some really lovely @o2 customer service reps over the last few days who have been very helpful sorting out all my contract and SIM issues. So 👏.

  • 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 👇

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • SamBirchy1 Sam B (@SamBirchy1) reported

    @O2 Best number to call you on to discuss the app not working and allowing us to access our C2C tickets ? @abbie_birch

  • Matthew20454695 Matthew Forsyth (@Matthew20454695) reported

    @O2 I have now called your customer service 3 times to try and get my old number transferred to my new sim, still no success and its approaching a week since I first tried, I was told this would be a simple process.

  • kyleighgreen22 kyleigh green (@kyleighgreen22) reported

    @O2 That’s what I use when I’m home but if I’m out doing the school run , going to work etc I’ve missed many calls because of shocking signal

  • Nick_FoxUK Nick Fox (@Nick_FoxUK) reported

    @EnglandRugby @O2 Holy crap that backline 🔥

  • Hallie912 Hallie Mason (@Hallie912) reported

    @O2 I’m in US and have no signal at all. Have restarted multiple times. Need help ASAP and “all chat agents are currently busy” since yesterday. Help??!

  • NikhilJudge Nikhil Judge (@NikhilJudge) reported

    @O2 what an utterly disgraceful price hike. You are shafting me out of a 2 year contract!!!! @MartinSLewis @AngelaRayner As soon as o2 and virgin merge we are hit with a huge price hike without the option to cancel contracts. This was not pointed out at point of sale

  • TedWelford Ted Welford (@TedWelford) reported

    @philce @O2 There always seems to be a problem 😬

  • BigMrWilly1 BigMrWill.i.ams (@BigMrWilly1) reported

    @O2 Thanks for getting back to me. I’m always very cautious of buying online since last summer. I went to purchase a speedboat - nothing fancy just an old tug. I payed £2700 only to receive a model one around the 1/600 scale mark. Never again!

  • 1_21GWatts 1.21 GW (@1_21GWatts) reported

    @O2 @nrogers959 Very weak reply @O2 . But then it is utterly indefensible. I’ve been an o2 customer for years, not for much longer

  • The_Bird_Tweet The Bird Tweet (@The_Bird_Tweet) reported

    Everyone in the Uk , do not go on @o2 network,4G is rubbish and i have written confirmation they have issues with their masts and have no idea when it will be fixed - save your money #o2arerubbish #o2