RLN-Z2 TX fails after initial contact confirmed

AllStarLink
1

New Radio Less Node G1LRO UNIT

Unit set up fine RX 100% but my TX fails after making initial good contact. Parrot is fine, have used different handset, UDP port forwarding and also connected by tethered cellular network plus home router, however continued TX fail persists. Any ideas as to cause welcome 73

2

Did you try contacting the vendor?

3

Yes I have and had already tried what was suggested, will try more tests with a pal tomorrow 73