Sprint was working great in WE826-Q - But the SIM got deactivated, please help

[RuralWandering]

So I had a $15/month BYOD ipad line with sprint. I sold the ipad and I called 3 weeks ago and asked them to cancel it, not knowing the sim would work in my router. Well, they forgot to cancel it, and I called them back a few days after my initial request and told them I'd keep the line, I had changed my mind. So three weeks pass and I'm using the sim card in my router with no issue.

This morning, I found out they finally canceled the line. I called sprint and they have reactivated the line, the sim card, etc. But I can't get it to attach now. Here are the messages I'm getting:

at!gstatus?
!GSTATUS:
Current Time: 533 Temperature: 24
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Not attached
LTE band: B5 LTE bw: 5 MHz
LTE Rx chan: 2425 LTE Tx chan: 4294967295
LTE CA state: NOT ASSIGNED
EMM state: Deregistered Attach Needed
RRC state: RRC Idle
IMS reg state: No Srv

PCC RxM RSSI: -65 RSRP (dBm): -93
PCC RxD RSSI: -65 RSRP (dBm): -91
Tx Power: 0 TAC: 1206 (4614)
RSRQ (dB): -12.2 Cell ID: 07D17902 (131168514)
SINR (dB): 15.0


OK


I should note that I am using n.ispsn, which is what I've been using with great success all three weeks. The ipad is sold and long gone, but the sim is indeed active as it's not showing signal whereas before it wasn't, and it's also once again appeared as active in my sprint account dashboard.

I have another ipad but it's on a leased plan. Any ideas on how to get me back up and running? Or am I in trouble here?

[Didneywhorl]

They may have changed the APN to x.ispsn, which is ipv6 only and a major arse pain. Call and ask for the APN that SIM is provisioned to.

[RuralWandering]

I asked but they told me I have to find it myself, on the ipad.. which I don't have of course. I switched the APN to x.ispsn, and ran the standard command and this is what I got, I don't know if it helps at all

at!gstatus?
!GSTATUS:
Current Time: 911 Temperature: 24
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Not attached
LTE band: B5 LTE bw: 5 MHz
LTE Rx chan: 2425 LTE Tx chan: 4294967295
LTE CA state: NOT ASSIGNED
EMM state: Deregistered Attach Needed
RRC state: RRC Idle
IMS reg state: No Srv

PCC RxM RSSI: -68 RSRP (dBm): -91
PCC RxD RSSI: -74 RSRP (dBm): -96
Tx Power: 0 TAC: 1206 (4614)
RSRQ (dB): -7.8 Cell ID: 07D17902 (131168514)
SINR (dB): 15.8


OK

[RuralWandering]

They may have changed the APN to x.ispsn, which is ipv6 only and a major arse pain. Call and ask for the APN that SIM is provisioned to.

I also checked in Signal/Cell Information and it says
Provider : Connecting