PVIDS and the like: Getting our PC 2824 to act like our PC6248

We have a remote office across the street currently being serviced by
an AirFibre microwave link.  The switches on either side of the microwave
link are Dell PC6248 (main) and Dell PC2824 (remote).

All is well under a single vlan (vlan 98).

When we try to upgrade the connection to accommodate multiple vlans we
get no connection with the 2824 in place.  But when we swap that with
another 6248 everything works OK.  I understand that to be able to
connect to the Microwave links themselves (98 addresses) we need to keep the 98 untagged.

Are we missing something on the 2824?

Here are snippets of code from the two remote switches we tried-

————————    Remote Site:   Dell 2824 running latest F/W ————————

Port : g23     <<<<< uplink to main campus
Port Mode: General
Gvrp Status: disabled
Ingress Filtering: true
Acceptable Frame Type: admitAll
Ingress UnTagged VLAN ( NATIVE ): 98
 
Port is member in:
 
Vlan               Name               Egress rule Port Membership Type
---- -------------------------------- ----------- --------------------
 30          AP Provisioning            Tagged           Static        
 87                 HR                  Tagged           Static        
 98                 98                 Untagged          Static        

 
Forbidden VLANS:
Vlan               Name               
---- --------------------------------

 
Classification rules:

———  Things work with another Dell 6248 at the remote site ———
. . . . . .
!
interface ethernet 1/g1
switchport access vlan 30  <<<< when I plug the WiFi AP here it gets provisioned from Main Campus
exit
!
interface ethernet 1/g2       
switchport access vlan 30
exit
!
interface ethernet 1/g3    <<<< when I plug in here I get my DHCP address from Main Campus
switchport access vlan 87
exit
!
interface ethernet 1/g4
switchport access vlan 87
exit
. . . . .
interface ethernet 1/g47  <<<<<<< Link to Main Campus via AirFibre
switchport mode general
switchport general pvid 98
switchport general allowed vlan add 98
switchport general allowed vlan add 30,87 tagged
exit
!
. . . . .
 ———————Main Campus Dell 6248——————————

interface ethernet 1/g4   <<<<< LINK to remote site
switchport mode general
switchport general pvid 98
switchport general allowed vlan add 98
switchport general allowed vlan add 30,87 tagged
exit
!

UPLINK TO CORE SWITCH (S4810)
interface ethernet 1/g48
switchport mode general
switchport general allowed vlan add 30,33-34,42,86-87,90-91,97-98 tagged
exit