O2

O2 Outage Report in Welwyn, Hertfordshire, England

No problems detected

If you are having issues, please submit a report below.

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 01/01/2026 06:00

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 (46%)

    Phone (46%)

  2. Internet (32%)

    Internet (32%)

  3. Total Blackout (14%)

    Total Blackout (14%)

  4. E-mail (4%)

    E-mail (4%)

  5. Wi-fi (3%)

    Wi-fi (3%)

  6. TV (1%)

    TV (1%)

Live Outage Map Near Welwyn, Hertfordshire, England

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

Loading map, please wait...
City Problem Type Report Time
United KingdomSt Albans Phone
United KingdomHemel Hempstead Phone
United KingdomWelwyn Garden City E-mail
United KingdomSt Albans Phone
United KingdomHertford Phone
United KingdomWaltham Cross Internet

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:

  • 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!

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

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

  • Steve_Edwards77 Steve Edwards (@Steve_Edwards77) reported from Hertfordshire, England

    @westspice @O2 Awful service for me today!

  • 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

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

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

  • 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

  • jmcomms Jonathan Morris 📱📸 (@jmcomms) reported from London Colney, England

    @VModifiedMind @benwood @EE @VodafoneUK @ThreeUK @O2 Albeit using half rate codec for voice. Sounded pretty awful.

  • 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!

  • bks67 bridget sparks (@bks67) reported from Hertfordshire, England

    @O2 I do have the app, I think I will phone the customer service team and ask them,

  • Craigcanfield Craig Canfield (@Craigcanfield) reported from Welwyn Garden City, England

    @O2 contract finished.. put on a rolling month deal.. nothing will change they said... 2 days now with no phone signal.. "sim provisioned"! Customer svc say it'll work soon. Gggrrr

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

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

  • ItsMeEllisxD Ellis Brown (@ItsMeEllisxD) reported from London Colney, England

    @O2 Well it’s every time I leave Leicester. Or go to a new city.. even when I have 4 bars it’s either really slow or won’t load at all!

  • 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

  • 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

  • OmarMansoor Omar Mansoor (@OmarMansoor) reported from London Colney, England

    @Ali_Malik @O2 @Ofcom @MarkEvansO2 I’ll give them a #Valentine chance - never had issues before but now only on crucial days they go down. #

  • Elissa524 Elissa Da Costa (@Elissa524) reported from St Albans, England

    @O2 Not sure what happened but all ok now thanks. Very good service to get me reconnected quickly

  • 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

  • DimitthriV Dimitthri Vithanage (@DimitthriV) reported from London Colney, England

    @O2 what is going on! 😭😭 Even when I have signal it's so slow!

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • janethebuell Jane (@janethebuell) reported

    @O2 It says on the 02 bio to send a DM and you'll be happy to help. So, can you help me please, I sent a DM over 20mins ago.

  • stella_chadwick Stella Chadwick | Functional Medicine (@stella_chadwick) reported

    @O2 @O2 I’ve recently switched my business phone from Sky and now have no signal at all. I can’t call or access support, and your chat system isn’t helping. I’ve been on hold for over 35 minutes. Please can someone assist urgently?

  • LawrenceLubbock Lubz010 (@LawrenceLubbock) reported

    @O2 Blue Mondays not working! Help!

  • janethebuell Jane (@janethebuell) reported

    @O2 hi. I need help with a refund. I have had the phone put down on me twice by your customer service team and the app no longer works on my phone. Can you help me please?

  • abbybbyx abby | アビー (@abbybbyx) reported

    I can’t even get signal in my own house or area ffs…what is this @o2

  • owndancefloor do you own the dancefloor? (@owndancefloor) reported

    Dear @O2 I've had no signal on my mobile for 1 week. You claim to have delivered a parcel to my door with a new sim, which Isn't here so I'll have to report it to the police that it has been stolen. Who can I complain to that your service is beyond awful?

  • GlennGerits Dutchy.in.london (@GlennGerits) reported

    Most useless customer service team @O2 . On the phone for 4 hours as they cancelled my order by mistake…. And then tell me: sorry we deleted your switch up add on. So you can’t order your new phone! #useless

  • PaniKotki TurboKat (@PaniKotki) reported

    @virginmedia @O2 I've just had a cold call offering me a lower bill and a complementary gift - Great! Then there was lots of repeating things ad nauseam and then floor supervisor came on - a mumble and then hung up on! THIS IS CRAP SERVICE!!

  • VigarioDaniel daniel vigario (@VigarioDaniel) reported

    @O2, I have been a customer for 17 years, and this merger with @VirginMediaCorp is a complete disaster! 1) you cannot log into the O2 app 2) you cannot log into the O2 website 3) at midnight my contract rolled into next month ALL of my data allowance was taken off my account!!!!

  • AndyOnTheKop 𝒜𝓃𝒹𝓎  🇬🇧 🇺🇦 (@AndyOnTheKop) reported

    @o2 what’s going on with the o2 app there’s no app update in the App Store and iv deleted the app downloaded it again still same issue not loading up properly and nothing showing. Please look at this as there’s issue not only the app but the website and put something on X so us customers will know. Noticed the issue yesterday