Windows 10: Problem with automatic extention of DHCP lease time on mobile hotspots

Since January 2nd I'm experiencing some strange behaviour while having my Windows 11 laptop connected to the internet over mobile cellphone hotspots. It suddenly started disconnecting from the internet after the one hour DHCP lease is over, without automatically extending the DHCP lease, which was normal behaviour for the last several years both on Windows 10 and 11. The problem gets solved by manually turning the hotspot off and on again on the mobile phone, then it automatically reconnects to the internet.At first I thought it was an issue with my mobile operator, so I contacted their su

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DHCP lease time

Read this
DHCP lease time: What it is, how it works, and how to change it

 

DHCP lease time

If there is an active connection to the router then the lease time should be irrelevant.

The lease only comes into effect when the device stops transferring data to or from the Router, once this occurs the Clock Starts and when the lease time is reached the allocated DHCP address for the device is returned to the pool for reuse.

Basically if you have a long lease set then the likelihood of a particular device getting the same address every time is increased, if the lease time is short then this is less likely but you will have moore addresses in the available pool.

DHCP leases are important in locations where many devices connect to the network through the router such as business premises, or coffee shops, they are less important in a home situation and so leaving at default is just as good as any other lease time.

It should not affect gaming servers and other services outside of the home network as the IP address and lease for the home address is set by your ISP and they also set the DHCP lease, if you need to keep the same IP address seen on the net most ISPs will, for a charge, assign you a fixed Address

The internal address lease on your local network, can effect the availability of fixed items :- Printers, NAS servers, to the network but this should only be an issue if you only use direct IP access to access these devices, Windows naming conventions will be automatically updated by the Router so should work without issue

 

DHCP lease time

Thanks to both of you. Btw, what is the DHCP lease time setting for both of you ?