Irish Clock
Near Lum Udom Night Market
Irish pub in Udon Thani is a popular haunt for local expats and with 7 rooms on the premises, for Westerners passing through too. Good food, good company and free wi-fi. You might have to ask for the password but the wi-fi is free!
Aussie Pub
277/136-139 Charoensri complex, Teekathananont Road
A bar and guesthouse with free wi-fi too!
Charoensri Grand Royal Hotel
Next to the Robinson shopping centre
The signals in the room are weak, but if you open the door to the large inside atrium, or take your laptop out and use it outside the room on the ledge then you get a good, solid signal.
Udon Airport
Where
the planes go!
It’s very
strong the area on the ground floor between the internet terminals and the
Air Asia / Nok Air ticket counters (not check in counters). The signal
is weak in the departures area (after security), but if you sit near the
escalators near the toilets, you can still get it sometimes.