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 12/09/2025 20:20

At the moment, we haven't detected any problems at O2. Are you experiencing issues or an outage? Leave a message in the comments section!

Most Reported Problems

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

  1. Phone (47%)

    Phone (47%)

  2. Internet (30%)

    Internet (30%)

  3. Total Blackout (16%)

    Total Blackout (16%)

  4. Wi-fi (3%)

    Wi-fi (3%)

  5. E-mail (3%)

    E-mail (3%)

  6. TV (1%)

    TV (1%)

Live Outage Map Near Welwyn, Hertfordshire, England

The most recent O2 outage reports came from the following cities: Hertford, Waltham Cross and Hemel Hempstead.

Loading map, please wait...
City Problem Type Report Time
United KingdomHertford Phone
United KingdomWaltham Cross Internet
United KingdomHemel Hempstead Internet
United KingdomHemel Hempstead Phone
United KingdomStevenage Phone
United KingdomLuton Internet

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:

  • 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

  • PaulWRamsay #HellomynameisPaul (@PaulWRamsay) reported from London Colney, England

    Really bad service from @O2, having calls from a shop to pressure into upgrades, no really clarity when calling 202 to ask what’s going on-I think I need a new network!

  • stourdave Dave (@stourdave) reported from London Colney, England

    @O2 How did this shit happen

  • CraigFamilyBlog Hayley & Gavin (@CraigFamilyBlog) reported from St Albans, England

    Gav and I have had no mobile phone service for 3 days, but I have no service to call @virginmedia to let them know! It happens far too regularly. Just spent the morning searching for a new deal. @O2 looks like the best so far!

  • 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

  • AFCAMDEN AFCAMDEN (@AFCAMDEN) reported from London Colney, England

    @SkyNewsBreak Would cancel my contract with @O2 immediately if they did.

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

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

  • 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

  • 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

  • RaviDheer Ravi Dheer (@RaviDheer) reported from London Colney, England

    @O2 I'm sick to death of your network. I'm trying to pay you and I can't. Now I'll wait for some fool to contact me. I give up with this pathetic network.

  • banafshbanafsh banafsheh (@banafshbanafsh) reported from Waltham Abbey, England

    @TazPDN @O2 So sorry to hear that ,#o2 is really bad, I'm with Vodaphone and they are much much better . Hope all get sorted for you x

  • 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

  • jodyrandall Jody Randall Esq. (@jodyrandall) reported from Broxbourne District, England

    @O2 why is your 4G so bloody awful at Liverpool Street Station

  • 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

  • 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

  • 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

  • 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

  • AndrewTRIrwin Andrew Irwin (@AndrewTRIrwin) reported from London Colney, England

    @EmmaShubrook @O2 Agreed. I have no signal at all

  • WickhamofWare Jonathan Flood (@WickhamofWare) reported from Stevenage District, England

    @O2 @tescomobile No mobile signal in Great Ashby, Stevenage all day!!

  • 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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • drinks_red_wine Sue (@drinks_red_wine) reported

    @O2 I have asked twice now a very simple question. I was considering leaving @o2 but the fact you can't be bothered to reply AT ALL is confirming my thoughts as to which way to jump. Only been a customer since 2007 so I am obviously not valued.

  • Sarah_Walker86 SarahWalker (@Sarah_Walker86) reported

    @O2 I’ve recently got a volt sim with my virgin broadband. I am unable to use my o2 as it says my account has not been activated. Can you help?

  • NicolaHewson2 Nicola Hewson (@NicolaHewson2) reported

    @O2 Hi, I had problems with my o2 pizza hut priority code…Can you please re-send? Thanks, Nicola

  • David_prewett14 David Prewett (@David_prewett14) reported

    @O2 is there a way you can ring o2 customer services if your service has been (mistakenly) barred? All I seem to get is a normal number but can't seem to call it as service restricted? TIA

  • SummerInaya summer (@SummerInaya) reported

    @O2 @o2 help

  • mammyames AMY BROWN (@mammyames) reported

    @O2 problem with making and recieving calls can't call out to report, can anyone assist?

  • Trystanian TH (@Trystanian) reported

    @safcbee @O2 It's a total con isn't it. I don't know how they get away with it. The service is unusable.

  • chrishoare chris ***** (@chrishoare) reported

    Hi @O2 I’ve done the suggested checks via your help line and nothing help still terrible network coverage, but I did fix the issues I brought a cheap @EE SIM card/phone and what a difference night and day better, 12minths and counting till I swap.. #o2sucks

  • Barry__biscuit BarryBiscuit (@Barry__biscuit) reported

    @O2 @O2 your online support is 'so busy' that it won't even put me in a queue! 11am on a Sunday morning Do you need less complaints or more staff?

  • tjaneg1 tracyjane (@tjaneg1) reported

    @O2 Yes O2 biggest scammers ever, so you have now added 4, yes 4 default accounts to my credit file, even though you know I've been frauded, you have police fraud reference, the persons address and details, yet you choose to ignore all this!!! IM NOT EVEN YOUR CUSTOMER!!!