O2

O2 Outage Report in Welwyn, Hertfordshire, England

Some problems detected

Users are reporting problems related to: phone, internet and total blackout.

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 11/20/2025 15:45

November 20: Problems at O2

O2 is having issues since 03:00 PM GMT. Are you also affected? 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: Hemel Hempstead and Stevenage.

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

Community Discussion

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

Beware of "support numbers" or "recovery" accounts that might be posted below. Make sure to report and downvote those comments. Avoid posting your personal information.

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

  • 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

  • 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

  • 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

  • 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.

  • 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

  • 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

  • hiaw61 Robert Frame (@hiaw61) reported from Hatfield, England

    @O2 just to say that I have received a replacement phone which is a positive, however I hope they take this example of my frustration with their Customer Service in to consideration and keep their valued customer updated

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

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

  • 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

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

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

  • juliet_gough juliet gough (@juliet_gough) reported from Stevenage District, England

    @O2 I have an enquiry and can’t find an answer on the ‘My O2’ page. Please help. #CustomerService #o2

  • 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

  • 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?

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

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

  • 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

  • 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

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

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

  • 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

  • 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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • debswild DEBS WILD (@debswild) reported

    @O2 Wifi calling is awful when calling landlines which is what I was doing when the issue occurred.

  • bjorn6 Michael Walker (@bjorn6) reported

    @PatrickMcEnroe Nadal has made 2 WTF Finals @O2 I attended the one in 2010 against Federer. @Wimbledon follows the computer rankings in 2021. This isn't new news!

  • rspick85 Rory ***** (@rspick85) reported

    @CorbyGoonerII @O2 Nasa can send photos millions of miles apparently but we can't get signal indoors?

  • laisoliveirabrs Lahhhhhh (@laisoliveirabrs) reported

    @O2 @cafeyn_uk CAFEYN IS AN EXTREMELY RUBBISH SERVICE. I ONLY GOT TO KNOW THIS BECAUSE IT WAS AN O2 ADD ON. WHEN I CLICKED THE LINK SENT BY O2 IT MADE ME LINK IT TO MY PAYPAL. CAFEYN CHARGED ME FOR A FREE SERVICE SINCE DAY 1 AND DOESNT WANT TO GIVE MY MONEY BACK

  • bri66thomp Bri Thompson (@bri66thomp) reported

    @karleburford @O2 Hence why I left @O2 To be in a major city and have no signal or internet connection is ridiculous, and they should give everyone their money back, for not being truthfull about their network.

  • Sammiebutler88 Samantha Bull (@Sammiebutler88) reported

    @O2 So @O2 I'm starting to wonder why i pay my phone bill when still signal is appalling. You tell me to use WiFi calling instead of fixing network issues. What happens when I'm somewhere that doesn't have Wifi such as when I'm at my grandmothers house and may need to call family?

  • LilacNannie LilacNannie (@LilacNannie) reported

    @O2 @tescomobile sick of having intermittent signal. Hours of no signal despite assurances there isn’t a problem. THERE IS!

  • RyanC__24 Ryan Clegg (@RyanC__24) reported

    @O2 Hi O2 I have followed your instruction and yet still have bad signal where I love and travel in South West. I mean come on reputable company like your self providing very poor service in which you state you have good service barely get 4g let alone 5g #badservice

  • kimmi_93 Kim (@kimmi_93) reported

    @O2 Since I’ve had a text saying your turning my 4G off my phone isn’t working probably and going really slow. I don’t pay £70 for nothing

  • natashakearns_ 𝐍𝐀𝐓𝐀𝐒𝐇𝐀 (@natashakearns_) reported

    Erm @O2 can you please tell me why I just came through to someone else’s phone call with an adviser? I’ve just heard their whole name and conversation.. I put the phone down the second I realised it was another customer.. not really professional surely!! 🤨😳🤯