Longer lookup wait

src/TinyGsmClientXBee.h

@@ -730,7 +730,7 @@ protected:
       strIP = stream.readStringUntil('\r');  // read result
       strIP.trim();
       if (!strIP.endsWith(GF("ERROR"))) gotIP = true;
-      delay(250);  // short wait before trying again
+      delay(2500);  // wait a bit before trying again
     }
     if (gotIP) {  // No reason to continue if we don't know the IP address
       IPAddress ip = TinyGsmIpFromString(strIP);