Internet connection stops daily when "lease" expires

Three days ago I couldn't connect to the Internet with my laptop. Until then it was working perfectly and my phone was still working fine.
I went into troubleshooting and the problem found was:
"wireless network connection doesn't have a valid IP configuration".
I Googled that on my phone and found a solution:
Command prompt
ipconfig /release
ipconfig /renew
This works but when the "lease" expires every 24 hours the connection drops and I have to ipconfig /renew to get the connection back.
Is there a permanent solution?
Many thanks
Lizzy

It sounds like you may be getting your IP address from your service provider. For some reason, the IP lease is not renewing automatically when your existing lease expires. Please call them and explain your situation and see if they can help you. OTOH, it might be your boundary device: if you own it, there's probably some setting that needs to change to make leases renew automatically. Again, I'm guessing the ISP owns that device and they should know how to fix this problem. Hope it works out that way!
HTH,
--Ed--

EdTittel said:

It sounds like you may be getting your IP address from your service provider. For some reason, the IP lease is not renewing automatically when your existing lease expires. Please call them and explain your situation and see if they can help you. OTOH, it might be your boundary device: if you own it, there's probably some setting that needs to change to make leases renew automatically. Again, I'm guessing the ISP owns that device and they should know how to fix this problem. Hope it works out that way!
HTH,
--Ed--

Thanks, Ed. She had PM'd me for advice. We tried all the normal IPCONFIG tricks, and nothing would stick. That's the same advice I gave her earlier...to contact her ISP. Also suggested she post in this thread cause there are some Network Gurus around that may have a clue.

This is an odd one: haven't run into it before. DHCP lease management is something that is normally completely routine. I've never seen/heard about a router/gateway device getting it wrong, which tells me that the code base is well-understood and stable. Thus, it pretty much has to be something on the ISP side, and something fairly far off the beaten track at that. Be interesting to see how this one turns out.
--Ed--

PS: just saw this thread further down this forum's list: Solved Dell Laptop suddenly not communicating with DHCP - Windows 10 Forums. Reasons behind these issues can apparently be very strange indeed!

The finger of blame keeps moving. eh? Hope all is well that ends well for you. Do please keep us posted.
Best of luck!
--Ed--

Does your ISP make you log into what is called a "Captive" portal when you start a session? What web browsers have you tried when checking to make sure that it is not a problem with one specific browser.