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 12/05/2025 01:40

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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: Waltham Cross and Hemel Hempstead.

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

  • 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

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

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

  • 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

  • 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!

  • 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.

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

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

  • 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

  • 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

  • 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

  • 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!

  • 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

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

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

  • 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

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

    @O2 How did this shit happen

  • 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,

  • 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!

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

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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • Colly_wobbles Colette Houlihan (@Colly_wobbles) reported

    @john_mack1974 @tescomobile @O2 I still have no signal and no polite message of how long it will take until I have contact?

  • dilligaf666xxx J. (@dilligaf666xxx) reported

    @O2 ABSOLUTE DISGUSTING UNPROFESSIONAL BEHAVIOUR FROM TWO OR SHOULD I SAY 3 OF YOUR STAFF TODAY WITHIN AN HOUR.3 DIFFERENT STORIES ABOUT MY BILL AND TWICE I WAS HUNG UP ON. Id like to put in a formal complaint so what do i do?

  • FlightmanLHR Pete (@FlightmanLHR) reported

    @O2 I have a contract with you for my daughter's phone. She works in Guildford. Unless she has WiFi, she is uncontactable all day when she is at work. We tried a 3 SIM for 3 weeks. No issues. The coverage is not fit for purpose and I'm unwilling to spend another £ with you.

  • Chad25216451 Chad (@Chad25216451) reported

    @O2 O2 is super s*** all your mast towers have gone down in redhill which apparently will take 6 weeks to repair which means all O2 customers are going to suffer yet be forced to pay full price for their plans…also your signal is sh*t in Betchworth, Surrey. Virtually non-existent 🤬

  • suzieprice suzie price (@suzieprice) reported

    @O2 hello - has anyone with a samsung galaxy a12 lost the myo2 app? Been thru it in my local o2 shop but the guys there couldn't find an issue. App "no longer compatible" and gone from play store

  • DazzyBrown Darren Brown (@DazzyBrown) reported

    @o2 left after 24 hrs due to poor signal cancellation within my cool-down period and got a bill for £84, now I have a default on my credit report for and nobody as o2 will help! Emailed the @financialombuds as it’s affecting my credit

  • WadeyWade Ian Wade (@WadeyWade) reported

    @O2 very frustrating two days trying to add data to my dongle as site comes up with error messages. Several calls yesterday where I passed around and then was told that a local branch could help add funds, so went in and they reckon they couldn’t. So, not very happy at all.

  • VictoriamariaC Victoria Clarke (@VictoriamariaC) reported from Walthamstow, England

    @O2 please can I ask why you have left a 76 women who has just lost her husband and undergoing cancer treatment without any phone service and no one is able to help. Absolute disgrace @lec1479

  • tmw1000 Tina Walsh (@tmw1000) reported

    @O2 Nearly 24 hours later and you still haven't responded to a customer who's told you they've not been able to make any phone calls for 2 days, 3 days now. No reply to dm either. Please don’t tell me 'you're very busy' again.

  • simon_taxi Simon (@simon_taxi) reported

    Anyone else experiencing problems when making calls using @O2 ?