wifiecho example error -2 on uno r4

[maxvaneck]

as in the title. it connects just fine with the wifi but i get an error code -2 whenn running the wifiecho example on an arduino uno r4. it happens both on test.mosquitto.org and a local mosquitto broker acceptiong anonymous connections. mqtt explorer works just fine on both so i don't know what's going on . thx for the help. i'm unable to test on any other boards atm but the most likely culprit is the uno r4 since it's so new and i've had trouble with other libraries Max