Random sim network signal drops and very bad internet latency and speed values
On my iPhone13 pro with two active sim cards (physical and one esim) I started getting random network signal drops and sometimes with apparently good coverage very bad latency/speed values a few weeks ago.
The locations are basically the same where a few weeks ago everywithng worked fine.
It could coincide with the 13.6.1 update.
No matter if both or only one card is active or which card is used for mobile data. The physical sim card works fine on another phone. There was no recent phone drop that could have damaged the antenna.
I performed a network reset and that seemed to resolve the network signal drop problem.
The bad latency and speed problem persists. It is basically not possible to use an app that needs internet connectivity or surf with any browser.
Any idea or suggestion would be appreciated!
iPhone 13 Pro, iOS 16
