Bought the 4G Wifi 500GB month to month postpaid offer . Since I already had a 4G Wifi Plus Optus modem, I only ordered for the new sim. After setting up everything the Wifi connection was working fine in the morning but then a few hours later it stopped working and whenever I try to connect it, it redirects me to a webpage that says Invalid sim. I tried resetting, pulling out the sim and inserting it back again, turning on/ off the device but nothing works. It shows me the same webpage. I inserted the sim on my phone where the OPTUS network pops up but it's not able to call or receive calls. Is it the new sim's problem?
Solved! Solved: Go to Solution.
I'm actually planning to cancel my Optus service because of this nonsense...
Have been on a 200GB 4G package for a year or so now, and due to additional home usage during COVID lockdown, we've just about run out of data with 3 days to go. I phoned Optus to ask about getting additional data, but of course, this package is excluded from their COVID bonus offer.
So instead I upgraded to the 500 GB package. For some inexplicable reason, they can't simply upgrade the package on my existing SIM card, but need to do their part in creating more plastic and emissions to deliver me a new SIM card.
The new SIM card does arrive the following day, which is great. I insert it into the OPTUS branded Huawei 4G USB modem (E3372) that I bought when I first signed up to Optus (which is in turn connected to a TP-link modem/router and a Meraki AP). After a few hours, the LED shines blue, and I think "Great! We're in business" But alas, no... even though the status screen at 192.168.8.1 says the 4G modem is connected, my devices simply won't connect to the internet. I try rebooting a few times with no luck.
I then insert the 4G modem into my PC, which promptly opens a browser tab with a message saying "Invalid SIM", as described by the OP here. I try reach Optus support via online chat, but give up after some time and call the contact centre (I'm still on hold... it's now been 57 minutes).
While on hold, I discover this forum and the list of 'approved devices', which again, for some inexplicable reason excludes Optus' own devices.
Because, of course, I can browse the Optus website, so _clearly_ the SIM card works with this device just fine.
So I suspect there's some dodgy reason why Optus a) insists on sending a new SIM card and b) only allows certain devices to operate with their network. I suspect that this is so that they can charge "mobile workers" with 4G dongles more than they charge for home broadband. Which is fair enough, however _please_ don't put your customers through the pain of signing up for a SIM only service when you know it's not going to work with the device that you sold them in the first place.
The way I see it, you can:
a) make the SIM card work with my device (as it should)
b) provide me with a new device free of charge, and then refurbish my old, perfectly working devices so they don't go into a landfill. And pay for the carbon offset while you're at it.
In all cases: get your act together and _don't be dodgy_. You are completely overloading your support staff with customer queries that could have been avoided if you didn't try to be clever and screw over your customers like this in the first place.