I have an unlimited plan, and I would say that I'm using your network a lot. And I was a happy user especially several months ago.
But last several months I face a strange issue.
From 5 to ~20 times a day Vodafone limits my bandwidth (speed) to 100 kbit/ps (not kbyte).
It's similar to the cases when your 10 GB or 2 GB limit ends, but that is not the case.
These days this speed is not enough to load a website, to use some messenger, to receive push notifications, actually nothing works.
To fix that, in my case, turning on airplane mode and turning it off fixes the problem until this can happen again in 5 minutes or 2 hours. But this can happen in the middle of a zoom call or other important stuff and always playing with airplane mode doesn't work for me.
I tried 3 different phones, tried to use only 4G or 5G - no difference.
Also, I believe there is no dependency on the geographical place. It happens in any room of my house as well as in the city center of The Hague.
This issue looks like Vodafone programmaticaly limits the speed, because it's stable 100 kbit/ps.
I used this tool http://startrinity.com/InternetQuality/ContinuousBandwidthTester.aspx#cli to monitor bandwidth and I want to share with you the logs (I will attach them).
Let me explain how to use those logs.
These logs are in .csv format.
It has next colums - Local time,Download (Rx) bandwidth (bps),Download bandwidth,Rx packet loss (percent),Upload (Tx) bandwidth (bps),Upload bandwidth,Tx packet loss (percent),RTT (ping) (ms),Rx packet loss burst length (packets),Tx packet loss burst length (packets),Rx instant jitter (ms),Tx instant jitter (ms),Rx RFC3550 jitter (ms),Tx RFC3550 jitter (ms)
But actually we are only interested on the third column - Download bandwidth.
I used 1Mbit download limit for tests. So when the logs looks like this (when download bandwidth is close to the 1MB) that means that everything fine.
2022-04-20 17:14:40,1046711.8,1022.18kbps/1.00Mbps, ......
2022-04-20 17:14:41,1036318.25,1012.03kbps/1.00Mbps, ......
2022-04-20 17:14:42,1034833.44,1010.58kbps/1.00Mbps, ......
2022-04-20 17:14:43,1046711.8,1022.18kbps/1.00Mbps, ......
2022-04-20 17:14:44,1046711.8,1022.18kbps/1.00Mbps, ......
But at the end of the logs you can see that the speed fallen to 100 kb:
2022-04-20 18:05:26,102993.46,100.58kbps/1.00Mbps, .....
2022-04-20 18:05:27,102993.46,100.58kbps/1.00Mbps, .....
And just to prove that it's not related with the reaching limit of my data bundle - attaching screenshoot made at the same time - 18:03.
Let me know if you need more details.
