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 02/16/2026 10:50

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Most Reported Problems

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

  1. Phone (52%)

    Phone (52%)

  2. Internet (30%)

    Internet (30%)

  3. Total Blackout (11%)

    Total Blackout (11%)

  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: St Albans, Luton, Buntingford, Hemel Hempstead and Welwyn Garden City.

Loading map, please wait...
City Problem Type Report Time
United KingdomSt Albans Internet
United KingdomLuton Phone
United KingdomBuntingford Total Blackout
United KingdomBuntingford Internet
United KingdomSt Albans Phone
United KingdomHemel Hempstead Phone

Community Discussion

Tips? Frustrations? Share them here. Useful comments include a description of the problem, city and postal code.

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O2 Issues Reports Near Welwyn, England

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

  • 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

  • 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

  • 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

  • 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 😡

  • 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

  • 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

  • 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

  • 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

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

    @O2 merlin pass code is not working, can you help?

  • 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

  • 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.

  • 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 👏.

  • 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

  • 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

  • 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

  • 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. 👌👌👌

  • 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

  • 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

  • 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.

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

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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • aidanc80 Aidan Corrigan (@aidanc80) reported

    @O2 I managed to find there seems to be a problem with a local mast happened 3 or 4 times in short space of time.

  • 10MARC1 10 Minute Amiga Retro Cast (@10MARC1) reported

    @RetroBoxRoom @IL0VEthe80s @O2 I ran into that a decade ago with the initial 4G launch. Sprint used this 4G "WiMax" garbage that was never available in Tucson, yet insisted on charging me an extra $10 a month just because my phone supported it. I dropped them like a hot potato soon after.

  • thetift glenn (@thetift) reported

    @O2 any chance we can have working signal in ST7 please

  • spearsy78 Paul (@spearsy78) reported

    @O2 Any idea on how are you meant to buy your Nintendo switch offer? payment does not work online, (something went wrong message every time) cannot get in store, and three hours on the phone to customer services are no help either.

  • thetift glenn (@thetift) reported

    @O2 I’m getting the texts it’s been 3 weeks no signal at home

  • decorachael Rachael (@decorachael) reported

    @snidbddidb @O2 @AntiTrafico_DF Thankyou I'm just terrified they will charge loads of money to my account. My mum's in hospital at the minute with an emergency and I really don't need this right now. I'm scared my number will be cut off or something and I need my phone right now. Bit of a mess

  • ellanwy Donna Ellen Moore (@ellanwy) reported

    @O2 My husband is having a nightmare with your customer services giving him non existent fraud phone numbers. Any advice? Very frustrating to initially be told they couldn't speak to him as he didn't have the password for the account......it was opened fraudulently in his name!

  • xoxolisacxoxo Ж lisa Ж (@xoxolisacxoxo) reported

    @O2 is the network down I can’t get anything in Belfast n I have to call the hospital

  • BADDESTDJTIMMY OTIS (@BADDESTDJTIMMY) reported

    @O2 network has suddenly disappeared on my phone for hours. Could it be because I ordered a 5g sim that hasn’t even arrived ?

  • TCMnow TM (@TCMnow) reported

    @O2 Hello, recently joined O2 and long time Virgin media customer(10+ yrs). Cannot activate volt as O2 says that there is no active virgin service at my address. Can you pls help?