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 01/21/2026 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 (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: Buntingford, St Albans, Hemel Hempstead, Welwyn Garden City, Hertford and Waltham Cross.

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City Problem Type Report Time
United KingdomBuntingford Total Blackout
United KingdomBuntingford Internet
United KingdomSt Albans Phone
United KingdomHemel Hempstead Phone
United KingdomWelwyn Garden City E-mail
United KingdomSt Albans Phone

Community Discussion

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O2 Issues Reports Near Welwyn, England

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

  • lordshaun_ Lord Shaun O’Brien 🇺🇦 (@lordshaun_) reported from London Colney, England

    The customer service of @O2 is truly one of the worst I’ve ever come across. They tell me to call, but I can’t because they’ve cut off my phone. The number goes through to a bot. Quelle surprise! I paid the bill, as always, and yet here we are. Been on the chat thing for four hrs

  • 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

  • garywebbTHFC Gary Webb (@garywebbTHFC) reported from St. Stephen, England

    2/2 @O2 promise to call you back, but as yet nothing, they promise to escalate to a manager, but surprise they don’t call you back either, their Twitter also ignores your serious concerns.Think seriously before choosing @o2 if there’s an issue THEY don’t seem to care! @VMO2News

  • fierce_unicorn 🦄 (@fierce_unicorn) reported from Enfield Lock, England

    @O2 merlin pass code is not working, can you 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. 👌👌👌

  • cove123 mark nicolson (@cove123) reported from Welwyn Garden City, England

    @O2 opened app to use bacon sandwich offer local greggs not open yet for some reason @GreggsOfficial Wgc poor

  • jasonmackenzie Jason MacKenzie (@jasonmackenzie) reported from London Colney, England

    Is there a hashtag for awful customer service from @O2 and/or @DHLParcelUK ? Asking for a friend.

  • 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

  • davidluxton99 David Luxton (@davidluxton99) reported from London Colney, England

    Disappointing poor customer service from @dhlexpressuk who inform me of my parcel delivery at 10.40 this morning then send another message to inform me it will now be 6 days later! #DHL not fit for purpose as a #courier for @O2 as I will now cancel the order

  • peterives50 Peter Ives (@peterives50) reported from Enfield Lock, England

    @O2 Happy Monday to everyone but O2 who still can't sort out my text and calls problems after at least a month 😡

  • shazzstevo Sharon Stephenson (@shazzstevo) reported from Enfield Lock, England

    @O2 My calls keeps dropping. This has been happening for several days now. This is really poor service. This is in the Enfield area

  • 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

  • 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 👏.

  • MANLIKENAIJA NAIJA BOI (@MANLIKENAIJA) reported from London Colney, England

    @O2 worst bloody network on the planet 6 FREAKING MONTHS I HAVE NOT BEEN ABLE TO USE MY PHONELINE DIE TO A MAST PROBLEM AND I AM STILL FORCED TO PAY FOR IT AND THEN HAVE TO PAY FOR ANOTHER NETWORK SIM JUST TO STAY AFLOAT KMT NEVER AGAIN

  • MANLIKENAIJA NAIJA BOI (@MANLIKENAIJA) reported from London Colney, England

    £105.03 A MONTH AND FOR THE LAST 6 MONTHS NO NETWORK !!! @O2 DO BETTER

  • Atanvarne ㄥ乇乂丨乇 (@Atanvarne) reported from Broxbourne District, England

    @O2 That’s it. They thought that 7am was a decent time to call a customer, even without knowing that I work shifts and was working late last night. 9am I’d have considered acceptable. I wouldn’t have liked it but 9am is REASONABLE. 7am is absolutely NOT.

  • 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

  • garywebbTHFC Gary Webb (@garywebbTHFC) reported from St. Stephen, England

    1/2 BEWARE everyone considering switching to @O2 They offer to port your existing number from your previous provider, which is really important to many, but FAIL miserably, when you call customer services multiple times, they promise a 4 hour resolution, this never happens..cont

  • 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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • racheleclapham Rachel Clapham (@racheleclapham) reported

    @O2 any help please?

  • adamok8 Adam (@adamok8) reported

    @O2 Hi, ever since yesterday my Wifi has been dropping in and out on my phone; sometimes the signal sign is there until I go on to WhatsApp etc, and then it vanishes. Sometimes it comes back when I go into another room, other times not. (1/3)

  • MrREGregory Robert Gregory (@MrREGregory) reported

    How can @O2 sell a refurb iPhone & not be aware that the phone is locked to another network provider? Time taken out of my day which should be spent with my family at the time of year.

  • Langers1981 Langers (@Langers1981) reported

    @O2 - Walks over (within mine and my sons space) O2 - So which phone is it Me - It’s a 13 pro O2 - Oh we’ve got these ones Me - Do you do one like this (shows my folio case) O2 - Erm I don’t know…. Have you tried next door Me - Oh ok O2 - Anything else I can help with..

  • poIygraphsandra sandra | nwh spoilers (@poIygraphsandra) reported

    **** @O2 was told by them that i could change the tariff on my subscription when i got it but apparently i can't, and i've cancelled my prime subscription thru them but amazon is still charging me for it 🤪

  • lisa_jayne_b ⚫️Lisa Britton WearAMask GetTheJab 🇨🇾🇬🇧🇪🇺 (@lisa_jayne_b) reported

    @O2 why does it take so long to get through to customer services, and why are they so unhelpful, or cut you off? All we want to do is transfer ownership!

  • JakeBenRichards Jake Richards (@JakeBenRichards) reported

    @O2 I need to unlock a phone to use on another network. Your website makes it almost impossible to do this unless you have an account with O2. I do not. Please let me know how I can do this.

  • Langers1981 Langers (@Langers1981) reported

    Barely got through the door… @O2 - Can we help? Me - No I’m fine I know what I’m looking for O2 - What are you looking for? Me - It’s fine its just a case O2 - Oh do you need any help? Me - No I’m just looking O2 - What phone is it for? what sort of case? Me - It’s ok

  • TheWillsy Matt ███ (@TheWillsy) reported

    @O2 hey! I’m trying to cancel something in my basket but won’t let me. Help?

  • MrJayTurner James Turner (@MrJayTurner) reported

    @O2 I rejoined O2 in Sep 2021, but you never transferred my number and when I tried the sim I couldn’t get any signal. I assumed the transfer had failed so I stuck with EE as my wife also transferred and she was getting bad signal at home. I’ve just realised I’m being billed?