Hello All,
Creating this question so that if anyone else is also having a problem connecting their Star Micronics tsp143iv -ue filter to the Shopify POS app, you can try the solution below.
If you are following the Shopify documentation and are not able to connect your printer with the app, you might want to check your network settings as this is something that worked for us very smoothly after tireless efforts of setting up a printer for more than 5 hours.
Our wifi network defaulted to 2.4GHZ while automatically switching to 5GHZ, when we tried connecting using this network this did not work with the Shopify POS app. Tried all possible methods even with the Star Micronics manual and all and everything was useless with the Shopify POS app. With the same network when we tried connecting the printer with our PC it worked fine.
Now we created a separate wifi for strictly 2.4GHz and tried connecting with the Shopify POS app and it worked like a charm on the first attempt. It connected well, printed receipts fine and connected successfully with the cash drawer too without any issues.
Sharing this here as if someone who also faces a similar issue might try this solution. This thing is not mentioned in the Shopify documentation yet and hoping it will help someone save some time.
Thanks for reading.