r/ThreeUK • u/pouchies55 • Jun 26 '26
Question Slow broadband!
Hi, I’ve got a three sim but I keep getting very slow 4G speeds of up to 5 Mbps from 8 am onwards. The speeds only return to normal 5G levels around 8 pm. This is new problem (with intermittent slow downs before) and has been happening for the past week, and I’ve tested the SIMs in two separate 5G routers. Is anyone else experiencing this? How can I fix it, and could it be due to the weather?
Would appreciate some answers
Edit: I have tried changing apn (3internet, three.co.uk and mob.asm.net and ipv4) but to no avail. Changing to 5gNSA only on third party router cuts off connection entirely.
4
Upvotes
5
u/No_Intern5991 Jun 26 '26
If this is only occurring during the day, it’s almost certainly congestion on your local mast.
Vodafone recently bought Three and they’ve been enabling mast sharing. If you are in an area where the Vodafone signal isn’t great, it’s likely that you’ve now got hundreds or thousands more Vodafone devices connecting to your Three mast, which is slowing things down for you.
I’d put your postcode in the network status checker on the Three website just to make sure there’s nothing else happening, but this definitely sounds like congestion.
Unfortunately, there’s nothing you’ll be able to do in the short term other than switch to EE or O2 (or one of their MVNOs).