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 03:35

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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

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O2 Issues Reports Near Welwyn, England

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

  • 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

  • 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!

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

    @O2 How did this shit happen

  • 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!

  • 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!

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

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

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

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

  • 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

  • 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

  • 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

  • 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.

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

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

  • 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,

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

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

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

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

  • 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.

  • 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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • JacobHaallam jacob (@JacobHaallam) reported

    @O2 your service is poor. my account has been compromised and i rang for them to tell me it was being under investigation and frozen. tell me why they’re trying to pay for stuff and making me pay for a phone i do not have. disgusting

  • clf7ey Clare Forrester-Shufflebottom 👩‍❤️‍👩 (@clf7ey) reported

    @O2 still having problems with my mobile data. I’m getting seriously fed up of not being able to do the simplest of things like accessing my gym log in.

  • TrapFaceOmz Oms (@TrapFaceOmz) reported

    @O2 worst network and worst customer service on the phone! Will stick to ee next time

  • optimismsflames Number 6 (@optimismsflames) reported

    @O2 Little or no service on 7 business SIM for 3 weeks after ‘essential maintenance’ was started on our nearest mast. Online fault checker next to useless, customer service who can only put in requests to the network team which never get actioned. When will this be fixed?

  • sarma_mullapudi sarma mullapudi (@sarma_mullapudi) reported

    @O2 recently I switched to O2 since from LycaMobile using mobile portability. Since then I am not able to receive any text messages. It’s been more than 10 days I am not able to receive any text messages and no one from O2 able solve my issue. If anyone out there can help me.

  • CormacPadley Cormac Padley (@CormacPadley) reported

    @O2 Is their anything that can be done as I’m fed up of ringing customer service an being told the same thing ?

  • doncmccall Don McCall (@doncmccall) reported

    @O2 super disappointed in you. Ordered my Apple Watch upgrade from store. Only to be told because they have one, and I ordered online, I can’t have it. I’ve just ordered an Oppo find pro x5. Watch and this phone will be going back. Dreadful customer service.

  • noldrini Nick Oldrini (@noldrini) reported

    @O2 @phroobin We have not had O2 here in Yorkshire the whole day - neither cell (which is normally pretty poor anyway) or over wifi. Just in time for Mother's day!

  • darren_sedgw1ck Darren Sedgwick  (@darren_sedgw1ck) reported

    @O2 I have repeatedly messaged you and another whole day has passed without any response or resolution to my inquiry. Can you please respond to my last DM.

  • noldrini Nick Oldrini (@noldrini) reported

    @o2 what's happening when I can't get O2 signal and wifi calling over Virgin broadband has stopped working today too. I understand Virgin provides backhaul for you in this neck of the woods - HD9.