Hi @BasilDV  [my reply has been edited]   Thanks for your help here but I am sorry to say I disagree with your summary.   First of all, the problem is not "SOLVED". If it was solved, you would have given a solution and we could use our networks the same as we did before this happened (approx 6 weeks ago). Please change the status back to "OPEN" and please progress with Technical Support to have the problem fixed.    The AP Isolation on the settings of the provided modem/router. You haven't finished the sentence above. What about the setting? At present it seems to be set "enabled" and there's no way to disable it. Please ask Technical Support to allow us access to this setting, because it appears to be causing a problem.   The Sagemcom modem/router only supports the WPA2-WPA3 security mode. If a device is not compatible with the said security, then they'll have problems connecting to the modem/router.   Wrong. The security mode is "WPA2/WPA3". That means it must work for WPA2 devices. But it does not, so the implementation in your firmware is not correct. My devices are of course WPA2 and they did work up until your most recent firmware release. They also work with any other WiFi router. Please ask Technical Support to fix this problem with your modem.   Yes, it's true if a device does not support either WPA2 or WPA3 then it won't work. But I'd say all our devices are at least WPA2 and they should work with WPA2/WPA3. Some of my devices are WPA2 and they did work up until your most recent firmware release. They also work with any other WiFi router. It seems the implementation in your recent firmware is not correct. Please ask Technical Support to fix this problem with your modem.   Which is why using a spare router that can be used as an access point will help resolve the issue As above, this is not the correct solution. Telling your customers to buy new hardware when your own is not fit for the advertised purpose is breaking Fair Trading laws.   @joesmwong you are completely correct to question @BasilDV 's response when you say:    It does not consider an issue resolved.    ... View more

So sorry but the problem I thought I had fixed has returned.   For some reason the modem simply gives up trying to show connected devices on the front page, even after I'd taken the steps above. Also it's impossible to access the WiFi control page.   Here's a link to someone else who had this problem. Note there are links there that allow you to control the radio and passwords etc. So that's something.   https://community.tpg.com.au/t5/Modems-and-Devices/Sagemcom-5866T-5G-modem-no-longer-shows-links-to-Ethernet-WiFi-2/td-p/117708 ... View more

Another example is the Android podcasting app, Pocketcasts. When I am connected to WiFi on my phone and attempt a refresh, nothing new comes in. But when I turn off WiFi, it picks up new episodes via 4G.   Something is not connecting properly under WiFi. Once I switch to 4G it's fine.   Thanks! ... View more

To anyone reading this, if you had the same problem as me this might help.   My problem was I could see the basic screens on the modem home page but not the detail of the WiFi networks or detail of any attached devices. I could not change the radio password or turn them on and off etc.   What I found seems to have fixed it is to turn off every single device you have on the network, WiFi and ethernet, also any IOT devices like smart blubs, smart locks etc.   Once everything is off, restart the modem. I actually factory reset it for good measure but anyway when it came up and things connected, I could see them properly and I could go to the wirteless settings.   Previously I could not see wireless settings or any of the devices on the network.    I think this happened because when I first for the modem I simply took the old one out and popped in the new one without turning off all the devices. There were just too many. I believe this meant some clashes of IPs etc in the modem which it couldn't resolve and gave up.   The problem was my own. Setting up a new network (different modem and service) I should really have powered everything of so they all started up correctly. My bad!    PS, the TPG support people were very helpful but I didn't have time to spend with them, so I fiddled around on my own. I promise nothing with this solution above ... but it's easy enough to try if you have the same symptoms.   ... View more

Thank you to OP for posting.   I also am unable to access the section of the config pages for my Sagemcom router. Initally I can but quickly I lose access, for no apparent reason. Several times a hard reset enabled me to access the settings, but now even that does not work (and that's no solution at all!)   To @Ahra_G, would it be possible to post your resolution steps here, so any others with the problem can follow them?   Thank you very much! ... View more